How many named storms will there be in the 2026 Atlantic Hurricane Season?

- [2026-10-13] The NHC main page says 
there are no tropical cyclones in the Atlantic at this time
. The NHC outlook issued 2 PM EDT Oct 13 says 
tropical cyclone formation is not expected over the next 7 days
. The 2 AM outlook had given the eastern Atlantic low west of Cabo Verde only 10% (48 hours and 7 days), down from 20% on Oct 12. I read the 2 AM text on the fetched gtwo page. The 2 PM text appears only in the search snippet. https://www.nhc.noaa.gov/gtwo.php
- [2026-10-13] Current count: 9 named storms (Arthur through Isaias). Next name is Josephine. Four trackers agree on nine: CNN (
nine named storms so far in 2026
), hurricanesmapped, KXAN and the Wikipedia infobox. https://www.cnn.com/interactive/2026/05/weather/hurricanes-tropical-storms-tracker-vis/
- [2026-10-13] Wikipedia's season infobox lists 
total storms: 9, hurricanes: 1, major hurricanes: 1
 and 
ACE 18.0
. My direct fetch of that page returned a stale copy from about Aug 31 showing 4 storms, so I used the search snippet for the current figures. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Storm timeline (NHC dates per The Hill): Arthur Jun 17, Bertha Jul 20, Cristobal Aug 12, Dolly Aug 27, Edouard Aug 31, Fay Sep 19, Gonzalo Sep 24, Hanna Sep 28. Isaias was named Oct 7 (TD Nine on Oct 6), became a hurricane Oct 8 and made landfall near Destin, FL on Oct 9. The Hill's text says "ten named systems", which conflicts with its own list of nine names. The NHC-based trackers all say nine. https://thehill.com/policy/energy-environment/5918384-tropical-tracker-timeline-of-the-2026-atlantic-hurricane-season/
- [2026-10-09] Isaias made landfall near Destin as a Category 2 storm after peaking at Category 3 (120 mph). KXAN's timeline confirms the Cat 3 peak and the landfall. https://www.kxan.com/weather/2026-tropical-timeline-tracker/
- [2026-10-12] The Orlando Sentinel reports the Cabo Verde system had a 20% formation chance, with 
the 10th system to be named Josephine
 if it developed. NHC cut that to 10% on Oct 13. https://yahoo.com/news/weather-news/articles/isaias-florida-hurricane-center-eyes-130437035.html
- [2026-11-30] One year ago, the 2025 season finished with 
13 named storms, five hurricanes and four major hurricanes
. The last 2025 storm was Melissa, in late October. This year's count of 9 compares with 13 at the end of 2025. https://www.noaa.gov/news-release/2025-atlantic-hurricane-season-marked-by-striking-contrasts
- [2026-08-06] NOAA's August update, which the question links, cut its forecast to 
seven to 13 named storms, two to six hurricanes, zero to two major hurricanes
, per Wikipedia's summary. NOAA's May range was 8–14. CSU's July forecast was 9 named storms. 1991–2020 average is 14.4. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Trajectory: formation has been sparse, with 9 storms in about 4 months. Seven formed from Jun 17 to Sep 28, then Isaias in October. Seasonal ACE is about 18. A very strong El Niño is suppressing activity. The Eastern Pacific is record-active, with 17 named storms by Oct 7. https://www.travelandtourworld.com/news/article/qczxcgzj5ldv/
- [2026-10-13] Next data point: NHC Tropical Weather Outlooks come out at 2 AM, 8 AM, 2 PM and 8 PM EDT, with advisories as needed. The season ends Nov 30. The final count becomes official only after NHC post-season review, so storms can be added or removed later. https://www.nhc.noaa.gov/

BOTTOM LINE: The NHC count is 9 named storms as of Oct 13, with no active Atlantic systems and no formation expected in 7 days. The final number can only rise from 9 if Josephine or a later storm forms by Nov 30, or if post-season review reclassifies a system.

NOT FOUND: A machine-readable NHC season table or CSV (the nhc.noaa.gov/data/tcr page was not fetched), and a current 2026 Wikipedia copy (the fetch returned a stale one). I also found no source confirming a tenth storm. The Hill's "ten" looks like an error.

- [2026-10-13] NHC's 2026 table, updated 15 UTC on 13 Oct, shows **9 named storms** (Arthur through Isaias), 1 hurricane, 1 major hurricane and ACE 18.0. NHC lists this as 3 named storms below the 1991–2020 normal for the date. Isaias (Cat 3, 105 kt, 959 mb) is the only hurricane. https://www.nhc.noaa.gov/data/tcr/index.php
- [2026-10-13] NHC's 2 PM EDT outlook on 13 Oct says Atlantic tropical cyclone formation is not expected over the next 7 days. The Cabo Verde system, rated 20% on 12 Oct, is no longer flagged. The next name is Josephine. That makes 9 the floor, and the count is unlikely to change before about 20 Oct. https://www.nhc.noaa.gov/gtwo.php
- [2026-10-13] The Eastern Pacific is extremely active, with Hurricane Simon and new Tropical Storm Trudy. Ryan Maue describes a "full-tilt Super El Niño", Atlantic relative SST of about -0.52°C and Atlantic ACE of only 18, against more than 320 in the Eastern Pacific. https://weather.substack.com/p/october-13-2026-tuesday-tropical
- [2026-08-06] NOAA's August update forecast 7–13 named storms, 2–6 hurricanes and 0–2 major hurricanes, at 70% confidence. Those ranges include the 2 storms already formed. It gave a 75% chance of a below-normal season. The May outlook was 8–14 named storms. The season is on track to land inside the August range if it ends at 9–13. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml
- [2026-05-28] Other forecasts: CSU 13 named storms, AccuWeather 11–16, Met Office 9 (range 6–12), University of Arizona 20 (April), TSR 14 (December). The dispersion is wide, and the El Niño-aware forecasters (NOAA, Met Office) are the closest to the current count of 9. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2020-10-13] Climatology after 13 Oct. Since 2000, an average season produced two named storms after 13 Oct, one of them a hurricane. The record is 7 storms, in 2005. 2002 and 2006 had no storm after September. About 15% of ACE typically occurs after 13 Oct. In 8 seasons the last storm formed in December. https://weather.com/storms/hurricane/news/2020-10-13-hurricane-season-not-over-late-october-november-us
- [2025 window] Same window in 2025, from the Wikipedia season page. Lorenzo formed 13 Oct, then Hurricane Melissa on 21 Oct. The season ended with 13 named storms (Jerry and Karen earlier in October), so about +1 to +2 after the 13 Oct cutoff. https://en.wikipedia.org/wiki/2025_Atlantic_hurricane_season
- [2024 window] Same window in 2024, an active year that had Milton on 9 Oct. Nadine formed 19 Oct and Oscar followed in mid-October. The season finished with 18 named storms, so the post-13 Oct additions included Nadine, Oscar and several November storms. The list is from my memory of the season and only Nadine and Oscar are confirmed on the page. https://en.wikipedia.org/wiki/2024_Atlantic_hurricane_season
- [2023 window] Same window in 2023, an El Niño year. The season ended with 20 named storms, tied with 1933, with the last system dissipating on 28 Oct and nothing formed after that. Hurricane Tammy (the 19th storm) formed after mid-October. The page's forecast table shows NOAA's August range was 14–21 (actual 20) and CSU's was 18. 2023 was the most active El Niño season on record because of record-warm Atlantic SST. https://en.wikipedia.org/wiki/2023_Atlantic_hurricane_season
- [2026-10-08] 2026 is anomalous. It was the latest first hurricane since 1905 and the first season since 1914 to have no hurricane as late as 21 Sept. Fay, Gonzalo and Hanna formed in a 10-day burst in late September. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Reports say the NHC watched the Cabo Verde system on 12 Oct and that Isaias made landfall near Destin on 11 Oct. The Wikipedia figure of 9 storms matches NHC. Some reports say 10 storms (The Hill) or a "10th named storm" (SMN). Those are errors; NHC's own count is 9. https://www.orlandosentinel.com/2026/10/12/hurricane-center-keeps-eye-on-distant-atlantic-system/

BOTTOM LINE: The final count is 9 plus whatever forms from 14 Oct to 30 Nov. Historical post-13 Oct additions are typically 0–5 (average about 2, from 0 in 2002 and 2006 up to 7 in 2005). With a strong El Niño and no Atlantic development expected for 7 days, the likely range is 9–11, and a final count of 9 is plausible.

NOT FOUND: An NHC-archived record of the count on 13 Oct in prior years (I relied on Wikipedia season pages). Verified post-13 Oct 2024 storm counts. Any official NHC statement about a post-season reanalysis that could change the count.

- [2026-10-08] CPC's ENSO discussion says El Niño is still strengthening. Niño-3.4 is +2.1°C and Niño-1+2 is +3.9°C. Odds of a record-strength event are 83% for Oct–Dec and 70% for Nov–Jan. The next update is Nov 12. This is the main suppressor, and it will not weaken before Nov 30. Nobody controls it. https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.shtml
- [2026-09-21] Fox Weather's FOX Forecast Center found that in Super El Niño years since 1960, no tropical system has formed in the Gulf or Caribbean in October. The Gulf and Caribbean, especially the Central American Gyre, are the usual October source of homegrown storms. With that source largely closed, any further storm would probably be an Atlantic-origin or subtropical system. Isaias, which formed in the Gulf in early October, is an exception to that pattern. https://www.foxweather.com/weather-news/historically-quiet-atlantic-hurricane-season-super-el-nino
- [2026-10-13] NHC's 2 PM EDT outlook shows no formation expected for 7 days. The earliest a tenth storm could form is therefore about Oct 20, which leaves roughly 41 days of the season. That window is where any increase over 9 would come from. https://www.nhc.noaa.gov/gtwo.php
- [2026-09-21] The same Fox piece says about 40% of a typical season's activity is still to come at that point in the season. Climatologically, October–November formation is concentrated in the Caribbean and western Atlantic. This year Isaias used a brief "sweet spot" in the Gulf helped by an MJO pulse (Action News Jax, 10/7 snapshot). So a later MJO pulse is the likely trigger for any further storm (https://actionnewsjax.com/weather/talking-tropics-wmike-quiet-atlantic-pacific-remains-active/KLQF72NI7BGUZJIU36XVURE6BA). The NHC outlook shows nothing yet.
- [2026-10-14] CSU issues its next two-week forecast on Oct 14 (scheduled in its Aug 5 document; the report itself is not yet published). It uses NHC outlooks, global models and MJO state. It will be the first expert read on Oct 14–27 activity. https://tropical.colostate.edu/Forecast/2026-0805.pdf
- [2026-08-05] CSU's seasonal forecast of 9 named storms was reached on Oct 7, with Isaias. CSU's ACE forecast was 50 and the season is at about 18. CSU's August report used the same 9 named storms as its July one, so the named-storm target is already met while energy is far below forecast. The remaining shortfall is in intensity and duration, not storm count. https://stthomassource.com/content/2026/08/05/csu-maintains-well-below-normal-forecast-for-2026-atlantic-hurricane-season/
- [2026-09-xx] Klotzbach (CSU) told CBC that El Niño deserves almost all the blame and that "substantial" deep-tropics development is unlikely. Wind shear is strongest south of about 20°N. Short-lived storms near the Cabo Verde islands and subtropical storms are the ones most likely to be added. This season's list is mostly brief, weak storms of that kind (Dolly, Gonzalo, Hanna), and such storms still count as named storms. https://www.cbc.ca/news/science/quiet-2026-atlantic-hurricane-season-9.7352480
- [2026-09-xx] Sequence needed for a final count above 9: (1) shear and sinking air ease briefly, or an MJO pulse passes; (2) NHC flags a disturbance; (3) it reaches tropical or subtropical storm status (an NHC call), with 34 kt winds. Nothing is flagged now. The NHC post-season review in 2027 could reclassify weak systems, but that is outside the Dec 1 resolution. NHC alone decides the count. (Inference from the sources above.) https://www.nhc.noaa.gov/gtwo.php
- [2026-08-06] NOAA's August outlook cites a northward-shifted West African monsoon. That is less conducive to African wave development, and it supports few Cabo Verde-type storms. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml

BOTTOM LINE: The count is 9 now. It rises only if an NHC-named system forms between about Oct 20 and Nov 30, against a strengthening El Niño with no Gulf or Caribbean precedent in October during Super El Niño years. The most plausible outcomes are 9 or 10.

NOT FOUND: The CSU Oct 14 two-week forecast (not yet issued). A MJO forecast for late October. Any official NHC statement on late-season outlook.

- [2026-10-13] The NHC graphical outlook (issued 2 PM EDT) says 
there are no tropical cyclones in the Atlantic
. Its Spanish text says no formation is expected in the next 7 days. The 20% disturbance near Cabo Verde, which the October 12 articles described, is no longer flagged. https://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=7
- [2026-10-13] The count stands at 9 named storms, Arthur through Isaias. Wikipedia's season infobox shows 
9 total storms, 1 hurricane, 1 major hurricane
, and ACE of 18.0. Josephine is next. The Hill's timeline says "ten named systems," but the list it gives ends at Hanna (8), and NHC, Wikipedia and Orlando Sentinel all say 9. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-08-06] NOAA's August update (the NOAA release cited in the question) calls for 
7-13 named storms (70% probability), including the 2 recorded at that time, 2-6 hurricanes, and up to 2 major hurricanes
. It puts the probability of a below-normal season at 75%, up from 55% in May. NOAA's May outlook was 8-14 named storms. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml
- [2026-08-06] NOAA cites El Niño, with 
a 90% chance of it becoming a strong or very strong event
, as the main suppressing factor. The 9 storms already formed are inside NOAA's 7-13 range, and the ranges include storms already formed. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml
- [2026-08-05] CSU's final seasonal forecast (published about Aug 5) is 9 named storms, 4 hurricanes and 1 major hurricane, 
including Arthur and Bertha
. That is the same total as the July 8 forecast. CSU's earlier forecasts were 13 (April), 11 (June) and 9 (July). The August CSU report implied 7 more storms after Bertha. https://www.chron.com/news/article/hurricane-storm-forecast-csu-22375424.php
- [2026 pre-season to August] Other forecasts, per Wikipedia's table: TSR 14 (December) then 12 (April); Univ. of Arizona 20 (April) then 13 (June); NCSU 12-15; UKMO 9 (June-November only); TWC 12; INSMET 11; UPenn 7-13. These were mostly April-June forecasts and are older than NOAA's and CSU's August updates. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Kalshi's hurricane-naming markets imply that Josephine is unlikely to become a hurricane. The "first hurricane name" market gave Isaias about 92%. Another market had Josephine at about 25% to be a hurricane and Kyle at about 18%. These are the odds a given named storm becomes a hurricane. They are not a direct market on the total named-storm count. I could not retrieve a Kalshi or Polymarket market on the final storm total. https://kalshi.com/category/climate/hurricanes
- [2026-10-12] The NHC 
expects a very strong El Niño to last through fall and suppress Atlantic development
. The Eastern Pacific is hyperactive (17 named storms by October 7, per Travel And Tour World). As of today, NHC is advising on Eastern Pacific Hurricane Simon and TD 21-E. https://www.foxweather.com/weather-news/noaa-2026-hurricane-season-forecast-august-super-el-nino
- [2026-10-12] On the Atlantic, Orlando Sentinel noted the NHC saw only "marginally conducive" conditions for the Cape Verde disturbance, with shear rising. WITN reported the NHC later put that system's formation odds at 0%. That points to no near-term addition to the count. https://www.witn.com/2026/10/11/national-hurricane-center-is-monitoring-one-area-deep-atlantic/
- [Track record] NOAA's 2025 outlook was 13-19 named storms, trimmed in August to 13-18. The season produced 
13 named storms
, inside the range. NOAA's 2026 August range of 7-13 already contains today's count of 9. https://www.cbsnews.com/news/2026-atlantic-hurricane-season-outlook-noaa-forecast/
- [Climatology] The 1991-2020 average is 14.4 named storms. CSU lists analog years 1965, 1982, 1987, 1997, 2009 and 2015, with most of them 
not even seeing over 10 named storms
. https://www.wbrz.com/news/update-csu-further-lowers-predicted-number-of-named-storms-for-2026-hurricane-season/

BOTTOM LINE: The count is 9 as of 2026-10-13. Expert forecasts of 7-13 (NOAA) and 9 (CSU) were issued in early August, and the 9 formed so far already sits at CSU's total. The NHC shows no Atlantic development expected for the next 7 days, so any further storms would have to form in the remaining weeks of the season, which runs to November 30. Late-season storms are possible even in strong El Niño years.

NOT FOUND: A Kalshi or Polymarket market on the total named-storm count. Any NOAA or CSU forecast newer than early August; CSU's two-week forecasts were not checked. Any primary NHC page confirming the count of 9. The Hill's "ten" is inconsistent with the other sources.

- [2026-10-13] NC State Climate Office says forecasts had pointed to southern Gulf development for about two weeks. Gulf sea surface temperatures there are at record warmth, and Isaias rapidly intensified from a disturbance there. This is the main high-side mechanism: a late-season Gulf or western Caribbean-edge system that grows locally, away from the shear-choked deep tropics. The same page says the three strongest prior El Niños (1982, 1997, 2015) produced only five named storms in October in total. Their wording also marks Isaias as unusual for an established El Niño this late. https://climate.ncsu.edu/blog/2026/10/rapid-reaction-heavy-rain-tornadoes-accompany-isaias-in-nc

- [2026-10-01] CNN (via Klotzbach, CSU) says Atlantic water is warm enough for hurricanes. The limiting factor is record-strong shear in the main development region since the summer. CNN also says the Caribbean is "fully entrenched" in El Niño shear, so it is likely off the table for the rest of the season. Late-season storms tend to form in the Gulf, Caribbean and off the Southeast coast. Upside therefore depends on the Gulf and subtropical routes, not the Caribbean. https://www.cnn.com/2026/10/01/weather/el-nino-september-hurricane-season-climate

- [2026-10-01] CNN says Fay peaked 4 mph below hurricane strength and may be upgraded in NHC's post-season review. An upgrade would not change the named-storm count. The reclassification route to a higher count would need an unnamed system (a subtropical or short-lived storm) to be added in post-season analysis. I found no evidence of any such candidate. https://www.cnn.com/2026/10/01/weather/el-nino-september-hurricane-season-climate

- [2026-08-05] CSU's seasonal total of 9 implied 7 more storms after Bertha. That total has already been reached with Isaias, with about 7 weeks left. CSU's two-week forecasts were set for Sept 30 and Oct 14, so the next one is due tomorrow. It could signal any late-season upside. https://tropical.colostate.edu/Forecast/2026-0805.pdf

- [2026-07-08] CSU's July report described the El Niño as "dominant," with very high shear and near-average Caribbean and tropical Atlantic sea surface temperatures. CSU's August update called Atlantic SSTs "slightly above" average. https://tropical.colostate.edu/forecasting.html

- [2026-06-?? Fox Weather, about 98 days old] Fox Weather cited the European model as showing near-average activity from late September into November. It said returning above-average Atlantic SSTs could partly offset El Niño, with more development in the Gulf and off the Southeast coast. The outcome so far (Fay, Gonzalo, Hanna and Isaias in Sept 19–Oct 7) matches that signal. The signal is a forecast-model guide, not a verified count. https://www.foxweather.com/weather-news/latest-eurorpean-forecast-shows-near-average-activity-atlantic-around-late-season-el-nino-intensifies

- [2026-09-12] Andy Hazelton (University of Miami) compared the pattern with 1982, 1997 and 2015. Those are the super El Niño analogs, and WeatherOnThisDay's table gives them 8.3 named storms on average (1997: 8; 2015: 11). The 2015 total of 11 is the closest analog for a high end. Adding 2 to 9 would reach it. https://lynnwoodtimes.com/2026/09/12/el-nino-2/ and https://weatheronthisday.com/trends/el-nino-hurricane-seasons-history

- [2026-10-13] The Eastern Caribbean outlook page, whose content is partly stale, says the low in the east Atlantic was no longer expected to develop under strong upper-level winds. Strong shear over the Caribbean is keeping the Atlantic quiet, and the page's chart compares the 2026 shear with the 1999–2023 band. That supports the NHC 7-day "no formation" signal. https://dewedda.com/outlook

- [2009 analog] 2009 (9 named storms, a moderate El Niño) added Grace (Oct 4) and Henri (Oct 6) in October, then Hurricane Ida in November. Ida was the first November Gulf hurricane since 1985. This is a template for the high case: a late-season storm from a nonclassical source (the Caribbean-edge/Gulf, i.e., Central American Gyre or frontal) after a quiet stretch. https://tropical-cyclones.fandom.com/wiki/2009_Atlantic_hurricane_season

- [2026-10-13] The NHC 0015 UTC discussion showed a 1009 mb low on the wave at 17.5N 31W. The 2 PM outlook later dropped it. https://www.nhc.noaa.gov/text/MIATWDAT.shtml

- [Reasoning, mine] The high scenario is 11–12 final storms. It needs 2–3 additions from Oct 14 to Nov 30, from Gulf, western Caribbean or subtropical sources. Each such storm would need to form in a window outside the next 7 days (so after about Oct 20). The upper end is near the top of NOAA's 7–13 range. That would require a late-October MJO pulse or a Central American Gyre, and the available sources did not show either.

BOTTOM LINE: The high path is a few late Gulf, western Caribbean or subtropical storms, backed by record-warm Gulf SSTs and Isaias's rapid intensification. Strong shear and no formation expected for 7 days limit it, so the plausible top is roughly 11–12, and the sources give no evidence for more.

NOT FOUND: The CSU Oct 14 two-week forecast, since it is not issued yet. Any MJO or Central American Gyre forecast for late October. A primary NHC page showing a tenth storm. A named-storm-total market.

- [2026-10-13] The NHC Atlantic 2-day and 7-day outlooks both list "Disturbances: None" on the fetched page. The 2 PM EDT text says formation is not expected in the next 7 days. The NHC is advising only on Eastern Pacific systems, Hurricane Simon and TD 21-E. That puts the earliest plausible Josephine at about Oct 20 or later. https://www.nhc.noaa.gov/gtwo.php

- [2026-10-13] The NC State Climate Office counted only five named storms in October or later across the three strongest El Niños on record (1982, 1997, 2015). That is about 1.7 per year, and it includes storms that formed in early October. It calls Isaias part of a "rare breed" of storms that overcame El Niño shear this late. A low outcome of 9, or 9 plus one, fits that analog record. https://climate.ncsu.edu/blog/2026/10/rapid-reaction-heavy-rain-tornadoes-accompany-isaias-in-nc

- [2026-10-13] Isaias formed in the southern Gulf, helped by record-warm water and an MJO pulse (Action News Jax, Oct 12). It was a narrow "sweet spot" between zones of strong shear. Whether it repeats depends on the MJO returning to a favorable phase. The next favorable MJO window was not found in any source. https://actionnewsjax.com/weather/talking-tropics-wmike-quiet-atlantic-pacific-remains-active/KLQF72NI7BGUZJIU36XVURE6BA

- [2026-09-24] John Morales (NBC Miami) says the Atlantic air has mostly been sinking, and that this stable air plus very strong shear should keep the rest of the season "mostly quiet". He notes this El Niño is the strongest on record. That is a mechanism beyond shear alone. https://www.nbcmiami.com/weather/hurricane-season/john-morales-2026-atlantic-hurricane-season-was-expected-to-be-slow-but-not-dead/3863752/

- [2026-10-12] ABC13 Houston reports no Gulf development expected for at least 7 days and a large Saharan dust plume in place this week. The Cabo Verde system was given only a 20% chance on Oct 12 and was dropped on Oct 13. Gulf October storms tend to track east, which favors Florida. This is a mechanism for more suppression in the near term. https://abc13.com/tropicalupdate/

- [2026-09-10] ACE was 4.4 by Sept 10, about 7% of the 58.2 typical by mid-September (NBC Miami). Most of the storms were short-lived. Of the 8 pre-Isaias storms, five peaked at 50–70 mph. A low outcome fits a pattern of weak, brief storms. https://www.nbcmiami.com/news/local/peak-of-2026-atlantic-hurricane-season-tropical-activity-historic-low/3857305/

- [2026-09-28] Super El Niño analogs (1982, 1997, 2015) averaged 8.3 named storms, with finals of 6, 8 and 11. 1987, a moderate El Niño, had 7. The 1982 season's last storm dissipated Oct 3. The 1997 season ended at 8. These show that the final count can be ≤9 in the strongest El Niño years. 2026 already has 9, so the analogs imply only 0–2 more. Sources: https://weatheronthisday.com/trends/el-nino-hurricane-seasons-history and https://en.wikipedia.org/wiki/1982_Atlantic_hurricane_season

- [2026-09-10] The CSU forecast of 9 named storms, the NOAA August range of 7–13, and the 9 storms now formed mean the season already sits at CSU's total. The NOAA 7–13 range includes the storms formed so far, which contributes to a low outcome of 9 if nothing else forms. CSU's page shows its Aug 5 update was the last one, and I found no update since. https://tropical.colostate.edu/forecasting.html

- [2026-10-13] Counter-signal to a low outcome: Fox Weather's Euro-model piece, from about July 7, suggested above-average Atlantic SSTs could offset El Niño from late September into November. The Atlantic did produce Fay, Gonzalo, Hanna and Isaias in that window, so the SST offset is visible. A low outcome of 9 depends on this offset not producing a late-October Caribbean storm. https://www.foxweather.com/weather-news/latest-eurorpean-forecast-shows-near-average-activity-atlantic-around-late-season-el-nino-intensifies

- [2025-11-30] Climatology works against a zero-addition outcome. In 2025 there was no November storm, and Melissa dissipated on Oct 31. That shows a season can end before November. In El Niño years, storms after mid-October are not guaranteed. https://en.wikipedia.org/wiki/2025_Atlantic_hurricane_season

- [2026-10-13] Signals that would support a low result, i.e. a final count of 9 or 10: the NHC outlook stays blank through about Oct 25; the Caribbean or Central American Gyre develops no disturbance; Saharan dust and sinking air persist; Eastern Pacific activity remains dominant. Signals against it: an MJO pulse arriving in the Caribbean in late October, or an NHC outlook area for the Caribbean or western Atlantic. https://www.nhc.noaa.gov/gtwo.php

BOTTOM LINE: The low scenario is a final count of 9, with 10 as the next step. It rests on a blank NHC outlook through about Oct 20, strong El Niño shear and stable air, and strong-El-Niño analogs that added about 0–2 storms in October or later. Late-season storms from Gulf or Caribbean SST pockets, as Isaias showed, are the main route out of this scenario.

NOT FOUND: A forecast of when the MJO or Central American Gyre turns favorable. Any CSU or NOAA forecast issued after early August. A Kalshi or Polymarket market on the total storm count. Per-year counts of October-or-later storms in 1982, 1997 and 2015 beyond the NC State total of five.

11 AskNews articles (newest first; 6 from the last 48 h, 10 from the archive). Summaries are AskNews's own; dates are publication dates.

[2026-10-12] NHC Tracks Potential Atlantic Storm; Season Activity Below Average Due to El Niño
Orlando Sentinel — https://www.orlandosentinel.com/2026/10/12/hurricane-center-keeps-eye-on-distant-atlantic-system/
  - As of Monday, October 12, 2026, the National Hurricane Center (NHC) is monitoring a distant Atlantic system located a few hundred miles west of the Cape Verde Islands with a 20% chance of developing into the season's next tropical depression or storm within the next two to seven days.
  - Forecasters stated that 'environmental conditions appear, at best, only marginally conducive for development' in the immediate future, as upper-level winds are expected to become too strong by Tuesday.
  - However, heavy rainfall and potential flooding are expected across the western Cape Verde Islands over the next day or two.
  - This system follows Hurricane Isaias, which struck the Florida Panhandle near Destin on Sunday night with 105 mph sustained winds as a Category 2 hurricane, causing at least four deaths.
  - Isaias formed just shy of tying a 121-year-old record for the latest initial hurricane of the Atlantic season, with the previous record set on October 8, 1905.
  - The 2026 season has already produced nine named storms: Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, and Isaias.
  - The next name on the list is Josephine.
  - The National Oceanic and Atmospheric Administration (NOAA) updated its August forecast to predict between seven and 13 named storms, two to six of which would become hurricanes, potentially with zero to two major hurricanes.
  - This reduced activity is attributed to an extremely strong El Niño pattern generating wind shear in the Atlantic.
  - An average season typically sees 14 named storms and seven hurricanes.

[2026-10-12] Timeline of the 2026 Atlantic Hurricane Season: Ten Storms Tracked
The Hill — https://thehill.com/policy/energy-environment/5918384-tropical-tracker-timeline-of-the-2026-atlantic-hurricane-season/
  - The 2026 Atlantic hurricane season, officially running from June 1 to November 30, is predicted by the National Oceanic and Atmospheric Administration (NOAA) to be below-average in activity.
  - As of the publication date of October 12, 2026, there are no active storms, but the season has seen ten named systems.
  - Tropical Storm Arthur formed on June 17 with 40 mph winds, affecting the Texas and Louisiana coasts before becoming post-tropical on June 17.
  - Tropical Storm Bertha formed on July 20, reaching a peak of 60 mph winds on July 21, and made landfalls in Louisiana and near the Texas-Louisiana border on July 22 and 23, respectively, before dissipating on July 23.
  - Tropical Storm Cristobal formed on August 12 about 880 miles west of the Azores but weakened to a post-tropical remnant low by August 13.
  - Tropical Storm Dolly formed on August 27 and dissipated the following day.
  - Tropical Storm Edouard formed on August 31, reached 60 mph winds, and made landfall near Johnson Bayou, Louisiana, on September 1 before dissipating over Texas on September 3.
  - Tropical Storm Fay formed on September 19, reached a maximum of 70 mph winds on September 20, and experienced a complex lifecycle of weakening and restrengthening in the open Atlantic before dissipating on September 29.
  - Tropical Storm Gonzalo formed on September 24 near the Cabo Verde islands, peaked at 50 mph winds, and dissipated on September 26.
  - Tropical Storm Hanna formed on September 28 east of Bermuda and dissipated on September 30.

[2026-10-12] Atlantic Low-Pressure Zone Monitored by Mexico's Meteorological Service with 20% Cyclone Potential
Línea Directa — https://lineadirectaportal.com/mexico/zona-de-baja-presion-eleva-su-probabilidad-ciclonica-en-el-atlantico-cual-es-su-ubicacion-actual-2026-10-12__1718856
  - On October 12, 2026, the Servicio Meteorológico Nacional (SMN) of Mexico is monitoring a low-pressure zone in the Atlantic Ocean that has a 20% probability of developing into a tropical depression or storm within the next 48 hours and 7 days.
  - Located approximately 5,900 km east of the Quintana Roo coast and west of the Cape Verde Islands, the system is slowly moving toward the north-northeast.
  - If it strengthens to tropical storm status, it would be named 'Josephine', becoming the 10th named storm of the 2026 Atlantic hurricane season, which officially runs from June 1 to November 30, 2026.
  - The SMN notes that while the system currently poses no risk to national territory, the public is advised to monitor its evolution.
  - This development follows Hurricane Isaías, which made landfall near Destin and caused damage in northwest Florida earlier in the season.
  - By this date, 9 named storms have formed in the season, with one, Isaías, reaching major hurricane status.

[2026-10-12] Record-Breaking 2026 Pacific Hurricane Season Threatens Travel in Mexico, US, and Central America
Travel And Tour World — https://www.travelandtourworld.com/news/article/qczxcgzj5ldv/
  - According to the National Oceanic and Atmospheric Administration (NOAA), the 2026 Eastern Pacific hurricane season has reached historic levels, recording 17 named storms, seven hurricanes, and five major hurricanes by October 7, with an Accumulated Cyclone Energy (ACE) of approximately 192.1 units—nearly 97% above normal.
  - The Washington Post reported on October 12 that the cumulative duration of strong tropical-storm and hurricane winds surpassed the 2018 record.
  - Mexico faces the most immediate threats from Hurricane Simon, which carried sustained winds of approximately 115 mph and was positioned around 50 miles west-southwest of Cabo Corrientes on October 12, prompting warnings for Jalisco, Colima, and Michoacán, including tourist hubs like Puerto Vallarta and Manzanillo, with forecasts of up to 30 inches of rainfall in isolated areas.
  - The United States has experienced significant impacts, with Hawaii recording its second-wettest September in 36 years due to Hurricane Lowell, while remnants of Hurricane Rachel and Hurricane Polo caused flooding in California and Nevada.
  - Central American nations including Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama face potential risks from heavy rainfall and coastal flooding, though evidence does not confirm direct major hurricane strikes across all these countries.
  - The official season runs until November 30, creating uncertainty for flights, cruises, and hotel operations, though no comprehensive cancellation figures have been established.

[2026-10-12] National Hurricane Center Monitors Low-Pressure Wave Near Cabo Verde Islands
WPEC — https://cbs12.com/news/local/monitoring-one-wave-in-the-eastern-atlantic
  - As of October 12, 2026, in West Palm Beach, Florida, the National Hurricane Center is monitoring a low-pressure wave located a few hundred miles west of the Cabo Verde Islands in the far eastern Atlantic.
  - According to WPEC/CBS12, this system currently has a 20% chance of development over the next two to seven days.
  - While the environment is somewhat favorable for development over the next couple of days, upper-level winds are expected to increase towards the end of the week, becoming too strong for further organization.
  - Regardless of whether the system develops into a named storm, heavy rain is expected across parts of the Cabo Verde Islands.
  - The next name on the list is Josephine, and the 2026 Atlantic hurricane season is scheduled to end on November 30.

[2026-10-12] El Niño Drives Record-Breaking Pacific Hurricane Season with Five Major Storms
latinus.us — https://latinus.us/estilo-de-vida/2026/10/12/la-situacion-ha-sido-una-locura-el-nino-impulsa-record-de-tormentas-grandes-duraderas-en-el-pacifico-186860.html
  - The El Niño phenomenon has driven an unprecedented surge in large, long-lasting, and intense storms in the Pacific Ocean as of October 2026.
  - According to The Associated Press, the current season has set a record for the highest number of days with an active hurricane.
  - Five consecutive major hurricanes—'Nolo', 'Odalys', 'Polo', 'Rachel', and 'Simon'—have all reached major hurricane status with winds of at least 178.6 kilometers per hour.
  - Specifically, Hurricane 'Polo' established a new record for the duration of Category 5 status, surpassing the previous mark set in 2018.
  - The storm 'Rachel' caused waves to strike homes in Long Beach, California, on Monday, October 12, 2026.
  - Meteorologist Corbosiero noted that El Niño creates favorable conditions, comparing it to 'riding a bicycle with the wind at your back' in the Pacific, unlike the Atlantic.
  - Corbosiero added, 'It seems that in that area a (storm) generates after another,' and expressed no surprise at the potential for further storms.
  - Currently, there is a 90% probability that the system 'Trudy' will develop into a tropical storm off the coast of Mexico.
  - The article highlights that El Niño involves a warming of the equatorial Pacific, which differs from Atlantic conditions, and that warm waters allow storms like 'Polo' to maintain intensity even after passing through areas previously traversed by other systems.

[2026-10-09] 2026 Gulf Hurricane Season Defies El Niño with Four Named Storms
WDSU News — https://www.wdsu.com/article/the-gulf-doesnt-always-play-by-el-ninos-rules/74095261
  - Despite a super El Niño typically suppressing tropical activity across the deep tropics by producing strong wind shear, the Gulf of Mexico experienced significant homegrown development during the 2026 hurricane season.
  - According to WDSU News, four of the season's nine named storms formed in the Gulf: Arthur, Bertha, Edouard, and Isaias.
  - Isaias, the season's first and only hurricane and major hurricane, capitalized on favorable conditions to strengthen and come ashore along the northern Gulf Coast.
  - The article notes that while El Niño acts as a 'kill switch' for the Atlantic, the Gulf can still provide windows for storms to organize close to land.
  - As of October 09 2026, the storm is impacting southern Alabama and the Florida Panhandle.

[2026-10-09] Category 2 Hurricane Isaias Nears Gulf Coast, First of 2026 Season
NBC News — https://www.nbcnews.com/weather/hurricanes/live-blog/live-updates-hurricane-isaias-rcna602422
  - On October 9, 2026, the National Hurricane Center issued warnings and watches for the Gulf Coast between Mississippi and Florida as Category 2 Hurricane Isaias gains strength.
  - This event marks the first hurricane of the 2026 Atlantic season, occurring 75 years after the last time no hurricane formed by late September.
  - Forecasters initially predicted a 55% chance of a below-normal season in May, a figure that rose to 75% by August.
  - The current outlook predicts 7 to 13 named storms, with two to six potentially becoming hurricanes and zero to two reaching 'major' status (Category 3 or higher), compared to an average season of 14 named storms, seven hurricanes, and three major hurricanes according to the National Oceanographic and Atmospheric Administration.
  - Isaias is the ninth named storm of the year, following eight tropical storms that mostly formed between mid-August and September.
  - This contrasts with the previous year, when the first hurricane, Erin, formed in August.
  - The Atlantic hurricane season officially runs from June 1 to November 30.

[2026-08-06] NOAA Predicts Below-Normal 2026 Atlantic Hurricane Season Amid El Niño
https://www.kbtx.com — https://www.kbtx.com/2026/08/06/noaa-updates-2026-atlantic-hurricane-season/
  - According to NOAA's National Weather Service, the 2026 Atlantic hurricane season is predicted to be below-normal, with a 75% probability, despite the climatological peak occurring on September 10.
  - As of August 6, 2026, two named storms have formed in the Gulf of Mexico.
  - Forecasters project the season (June 1 to November 30) will produce 7 to 13 named storms, 2 to 6 hurricanes, and 0 to 2 major hurricanes.
  - The quiet start is primarily attributed to a strengthening El Niño that emerged in June, which increases vertical wind shear and disrupts storm development.
  - While typical averages are 14 named storms, seven hurricanes, and three major hurricanes, emergency officials warn that even a single storm can cause devastating impacts.

[2026-06-02] 2026 Atlantic Hurricane Season Names and Forecast Released
rd.com — https://www.rd.com/article/hurricane-names-2026/
  - The 2026 Atlantic hurricane season names have been released by the National Hurricane Center, featuring 21 names ranging from Arthur to Wilfred, alternating between male and female names and excluding letters Q, U, X, Y, and Z.
  - The list includes Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, Isaias, Josephine, Kyle, Leah, Marco, Nana, Omar, Paulette, Rene, Sally, Teddy, Vicky, and Wilfred.
  - According to the National Weather Service, the 2026 season is predicted to be below-average, with an estimated 8 to 14 named storms, 3 to 6 hurricanes, and 1 to 3 major hurricanes, compared to an average of 14 named storms, 7 hurricanes, and 3 major hurricanes.
  - Ken Graham, NOAA’s National Weather Service director, stated that while El Niño typically suppresses hurricane development in the Atlantic Basin, there remains uncertainty in how the season will unfold, emphasizing the need for preparedness.
  - The article was written by Ally Childress and published on June 02, 2026, by Reader's Digest.

[2026-06-01] 2026 Atlantic Hurricane Season Begins with New Name List
Yahoo — https://www.yahoo.com/news/weather-news/articles/2026-atlantic-hurricane-season-begins-165639522.html
  - The 2026 Atlantic hurricane season begins on June 1, 2026, with NOAA predicting 8 to 14 named storms, of which 3 to 6 are forecast to become hurricanes.
  - The World Meteorological Organization (WMO) has released the official 2026 Atlantic Basin names, which include Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, Isaias, Josephine, Kyle, Leah, Marco, Nana, Omar, Paulette, Rene, Sally, Teddy, Vicky, and Wilfred.
  - These names are selected from alphabetical lists that are recycled every six years according to a 'strict procedure' designed to facilitate disaster risk awareness and preparedness.
  - Previously, storms were named 'arbitrarily' or after the saint's day they occurred on, and exclusively female names were used until 1978.
  - Sarah Perkel, a reporter for the USA TODAY Network's Florida Connect team, authored the article.

## Prediction markets on this question (Polymarket)
- RELATED (different resolution, context only): "Will there be 1-3 hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.98, Volume: $17.0K — Counts hurricanes, not named storms; a neighbouring measure that implies a low named-storm count.
- RELATED (different resolution, context only): "Will there be 4-6 hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.02, Volume: $17.2K — Hurricane count bucket, not named storms.
- RELATED (different resolution, context only): "Will there be 7+ hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.00, Volume: $5.0K — Hurricane count bucket, not named storms.

## Tool outputs

### resolution_source (SUCCESS)
RESOLUTION SOURCE (the page the question resolves on — treat as the status-quo anchor):
  Current state: As of Oct 13, 2026, the NHC's 2026 Tropical Cyclone Advisory Archive lists 9 named storms in the Atlantic: Tropical Storms Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo and Hanna, plus Hurricane Isaias. The NHC homepage says there are no tropical cyclones in the Atlantic right now, and the 2 PM EDT Oct 13 Tropical Weather Outlook says no formation is expected in the next 7 days.
  Last updated: 2026-10-13 | already resolved: unclear | page matches criteria: True
  Note: Running total so far is 9 named storms (Arthur to Isaias). The next name on the list is Josephine. The season runs to Nov 30, so more storms could still form, but none are expected through about Oct 20. I counted the names myself from the advisory archive list; the NHC does not state a total. NOAA's Aug 6 outlook predicted 7-13 named storms. The post-season reports could in theory change the count, for example by adding an unnamed storm.
  Fetched: fetch: https://www.nhc.noaa.gov/ (HTTP 200)
  Fetched: fetch: https://www.nhc.noaa.gov/text/MIATWOAT.shtml (HTTP 200)
  Fetched: fetch: https://www.noaa.gov/news-release/noaa-maintains-prediction-for-below-normal-atlantic-hurricane-season (HTTP 200)
  Fetched: fetch_url: https://www.nhc.noaa.gov/archive/2026/ (HTTP 200)

### wikipedia_lookup (SUCCESS)
Wikipedia (3 lookups):

  2026 Atlantic hurricane season:
  The 2026 Atlantic hurricane season is the current annual cycle of tropical cyclone formation in the North Atlantic basin. The season officially began on June 1, 2026, and will end on November 30, 2026. These dates, adopted by convention, historically describe the period in each year when most subtropical or tropical cyclogenesis occurs in the Atlantic Ocean. The first system, Tropical Storm Arthur, formed on June 17 and impacted much of the northwestern coast of the Gulf of Mexico. A little over a month later, Tropical Storm Bertha formed on the opposite side of the gulf, impacting nearly the entire United States's Gulf Coast along its path. In September, Tropical Storm Edouard made landfall close to the Texas–Louisiana border.

  List of Atlantic hurricane seasons:
  
This is a list of Atlantic hurricane seasons, which covers the annual cycle of tropical cyclone formation in the Atlantic Ocean. Historical records of hurricane seasons date back to the 1800s, and these hurricanes and tropical storms can affect Central America, the United States, and Canada. The Atlantic hurricane season runs from June 1 to November 30, and this period is when most tropical activity occurs, with the peak occurring in September. Although storms can form outside of these months as well.
  Detail: This is a list of Atlantic hurricane seasons, which covers the annual cycle of tropical cyclone formation in the Atlantic Ocean. Historical records of hurricane seasons date back to the 1800s, and these hurricanes and tropical storms can affect Central America, the United States, and Canada. The Atlantic hurricane season runs from June 1 to November 30, and this period is when most tropical activity occurs, with the peak occurring in September. Although storms can form outside of these months as well.



  2025 Atlantic hurricane season:
  The 2025 Atlantic hurricane season was an unusual Atlantic hurricane season that featured bursts of intense tropical cyclone development over warmer-than-normal waters between long and quiet stretches with low tropical activity. Three Category 5 hurricanes formed this season, the second most of any year on record, behind only the 2005 season, which had four. Among the three was Hurricane Melissa, the strongest tropical cyclone of the year globally, among the most intense Atlantic hurricanes on record, as well as the strongest tropical cyclone to make landfall in Jamaica on record. Due in large part to these systems, and despite a near-average total of 13 named storms, 5 hurricanes and 4 major hurricanes, the season had an above-normal accumulated cyclone energy (ACE) rating of 130.8 units.

### web_search (SUCCESS)
Web search summary (20 results):
## Query 1: NHC Atlantic Tropical Weather Outlook (October 2026)

**Current outlook (as of about Oct 11–13, 2026)**
- **Eastern Tropical Atlantic low.** The latest NHC text I found is the Oct 12, 2026 outlook. 
It describes an elongated low a few hundred miles west of the Cabo Verde Islands. The low is producing a large but disorganized area of showers and thunderstorms, mostly on its east side.
 
Conditions look at best marginally conducive for development over the next day or two. After that, upper-level winds become too strong.

- **Formation odds.** 
The 48-hour and 7-day chances are both low, at 20 percent.

- **Impacts.** 
Heavy rain is expected to continue for a day or two across the western Cabo Verde Islands, and some flooding is possible.

- **Local news.** WPTV reported the same system. 
It said the NHC gave the disturbance a 20% chance of development over 48 hours.
 
The report also said the Southeast was still cleaning up after Hurricane Isaias.

- **Active Atlantic system.** An Oct 11, 2026 outlook said 
the Weather Prediction Center was issuing advisories on Post-Tropical Cyclone Isaias near the Tennessee–Kentucky border.

- **2026 season so far.** USAFacts says 
that as of October 9 there had been eight tropical storms and one hurricane in 2026.


**Caveats**
- Several search snippets are cached or undated. One outlook mentions an Alabama/Florida-area Gulf low (AL97) at 20% over 7 days, but I couldn't date it, so I haven't treated it as current.
- The NHC pages also carry Eastern Pacific information. 
Hurricane Simon was near Cabo Corrientes, Mexico, as of Oct 12, 2026.
 
A tropical depression or storm (EP93) was expected to form south of southern Mexico.
 That system is in the Pacific, not the Atlantic.
- For the latest odds, check the live NHC page.

**Sources**
- https://www.nhc.noaa.gov/gtwo.php?text=
- https://www.nhc.noaa.gov/mobile/gtwo.html
- https://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=7
- https://www.wptv.com/weather/tropical-weather/tropics-nhc-monitoring-disturbance-in-eastern-atlantic-low-chances-to-develop
- https://usafacts.org/answers/how-active-is-the-latest-hurricane-season/country/united-states/

## Query 2: Average Atlantic named storms forming after October 15

I didn't find an official NOAA figure for exactly "after Oct 15." The closest sources are below.

- **Since 2000, after mid-October.** Weather.com (Oct 2020) said 
an average season since 2000 has produced two named storms after Oct. 13, one of which becomes a hurricane.
 That is a rough proxy for the Oct 15 cutoff, but it uses a different start date and an older period.
- **Share of activity.** 
About 15% of seasonal activity, measured by ACE, typically occurs after Oct. 13, according to CSU data.

- **Extremes.** 
Five storms formed after mid-October in 2019, and seven formed in 2005.
 
Only 2006 and 2002 this century produced no storm after September.

- **NOAA/NHC 1991–2020 benchmark.** 
An average season has 14 named storms, 7 hurricanes and

## Prediction markets on this question (Polymarket)
- RELATED (different resolution, context only): "Will there be 1-3 hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.98, Volume: $17.0K — Counts hurricanes, not named storms; a neighbouring measure that implies a low named-storm count.
- RELATED (different resolution, context only): "Will there be 4-6 hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.02, Volume: $17.2K — Hurricane count bucket, not named storms.
- RELATED (different resolution, context only): "Will there be 7+ hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.00, Volume: $5.0K — Hurricane count bucket, not named storms.

You are an elite superforecaster. Produce a probability distribution over the answer to this Metaculus numeric question.

## Question
How many named storms will there be in the 2026 Atlantic Hurricane Season?

## Description / Resolution Criteria
## Description
NOAA: [NOAA maintains prediction for below-normal Atlantic hurricane season](https://www.noaa.gov/news-release/noaa-maintains-prediction-for-below-normal-atlantic-hurricane-season)

`{"format": "bot_tournament_question", "info": {"hash_id": "1d24a6428fabe2ba", "sheet_id": "5"}}`

## Resolution Criteria
This question will resolve as the number of named storms in the 2026 Atlantic hurricane season according to the United States National Hurricane Center.

## Fine Print
The Atlantic hurricane season takes place from June 1 to November 30.

## Range
The question's displayed range is [4.5, 20.5] (units: named storms).
The LOWER bound is CLOSED: the outcome cannot be below 4.5.
The UPPER bound is OPEN: outcomes above 20.5 are possible and resolve as "above range".
Where a bound is open, your percentiles MAY lie outside the displayed range — the range is where the question author expects most of the mass, not a constraint on the answer. Do not compress your distribution to fit inside it.

## Research tool outputs (raw; the resolution-source read is the status-quo anchor)
## Tool outputs

### resolution_source (SUCCESS)
RESOLUTION SOURCE (the page the question resolves on — treat as the status-quo anchor):
  Current state: As of Oct 13, 2026, the NHC's 2026 Tropical Cyclone Advisory Archive lists 9 named storms in the Atlantic: Tropical Storms Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo and Hanna, plus Hurricane Isaias. The NHC homepage says there are no tropical cyclones in the Atlantic right now, and the 2 PM EDT Oct 13 Tropical Weather Outlook says no formation is expected in the next 7 days.
  Last updated: 2026-10-13 | already resolved: unclear | page matches criteria: True
  Note: Running total so far is 9 named storms (Arthur to Isaias). The next name on the list is Josephine. The season runs to Nov 30, so more storms could still form, but none are expected through about Oct 20. I counted the names myself from the advisory archive list; the NHC does not state a total. NOAA's Aug 6 outlook predicted 7-13 named storms. The post-season reports could in theory change the count, for example by adding an unnamed storm.
  Fetched: fetch: https://www.nhc.noaa.gov/ (HTTP 200)
  Fetched: fetch: https://www.nhc.noaa.gov/text/MIATWOAT.shtml (HTTP 200)
  Fetched: fetch: https://www.noaa.gov/news-release/noaa-maintains-prediction-for-below-normal-atlantic-hurricane-season (HTTP 200)
  Fetched: fetch_url: https://www.nhc.noaa.gov/archive/2026/ (HTTP 200)

### wikipedia_lookup (SUCCESS)
Wikipedia (3 lookups):

  2026 Atlantic hurricane season:
  The 2026 Atlantic hurricane season is the current annual cycle of tropical cyclone formation in the North Atlantic basin. The season officially began on June 1, 2026, and will end on November 30, 2026. These dates, adopted by convention, historically describe the period in each year when most subtropical or tropical cyclogenesis occurs in the Atlantic Ocean. The first system, Tropical Storm Arthur, formed on June 17 and impacted much of the northwestern coast of the Gulf of Mexico. A little over a month later, Tropical Storm Bertha formed on the opposite side of the gulf, impacting nearly the entire United States's Gulf Coast along its path. In September, Tropical Storm Edouard made landfall close to the Texas–Louisiana border.

  List of Atlantic hurricane seasons:
  
This is a list of Atlantic hurricane seasons, which covers the annual cycle of tropical cyclone formation in the Atlantic Ocean. Historical records of hurricane seasons date back to the 1800s, and these hurricanes and tropical storms can affect Central America, the United States, and Canada. The Atlantic hurricane season runs from June 1 to November 30, and this period is when most tropical activity occurs, with the peak occurring in September. Although storms can form outside of these months as well.
  Detail: This is a list of Atlantic hurricane seasons, which covers the annual cycle of tropical cyclone formation in the Atlantic Ocean. Historical records of hurricane seasons date back to the 1800s, and these hurricanes and tropical storms can affect Central America, the United States, and Canada. The Atlantic hurricane season runs from June 1 to November 30, and this period is when most tropical activity occurs, with the peak occurring in September. Although storms can form outside of these months as well.



  2025 Atlantic hurricane season:
  The 2025 Atlantic hurricane season was an unusual Atlantic hurricane season that featured bursts of intense tropical cyclone development over warmer-than-normal waters between long and quiet stretches with low tropical activity. Three Category 5 hurricanes formed this season, the second most of any year on record, behind only the 2005 season, which had four. Among the three was Hurricane Melissa, the strongest tropical cyclone of the year globally, among the most intense Atlantic hurricanes on record, as well as the strongest tropical cyclone to make landfall in Jamaica on record. Due in large part to these systems, and despite a near-average total of 13 named storms, 5 hurricanes and 4 major hurricanes, the season had an above-normal accumulated cyclone energy (ACE) rating of 130.8 units.

### web_search (SUCCESS)
Web search summary (20 results):
## Query 1: NHC Atlantic Tropical Weather Outlook (October 2026)

**Current outlook (as of about Oct 11–13, 2026)**
- **Eastern Tropical Atlantic low.** The latest NHC text I found is the Oct 12, 2026 outlook. 
It describes an elongated low a few hundred miles west of the Cabo Verde Islands. The low is producing a large but disorganized area of showers and thunderstorms, mostly on its east side.
 
Conditions look at best marginally conducive for development over the next day or two. After that, upper-level winds become too strong.

- **Formation odds.** 
The 48-hour and 7-day chances are both low, at 20 percent.

- **Impacts.** 
Heavy rain is expected to continue for a day or two across the western Cabo Verde Islands, and some flooding is possible.

- **Local news.** WPTV reported the same system. 
It said the NHC gave the disturbance a 20% chance of development over 48 hours.
 
The report also said the Southeast was still cleaning up after Hurricane Isaias.

- **Active Atlantic system.** An Oct 11, 2026 outlook said 
the Weather Prediction Center was issuing advisories on Post-Tropical Cyclone Isaias near the Tennessee–Kentucky border.

- **2026 season so far.** USAFacts says 
that as of October 9 there had been eight tropical storms and one hurricane in 2026.


**Caveats**
- Several search snippets are cached or undated. One outlook mentions an Alabama/Florida-area Gulf low (AL97) at 20% over 7 days, but I couldn't date it, so I haven't treated it as current.
- The NHC pages also carry Eastern Pacific information. 
Hurricane Simon was near Cabo Corrientes, Mexico, as of Oct 12, 2026.
 
A tropical depression or storm (EP93) was expected to form south of southern Mexico.
 That system is in the Pacific, not the Atlantic.
- For the latest odds, check the live NHC page.

**Sources**
- https://www.nhc.noaa.gov/gtwo.php?text=
- https://www.nhc.noaa.gov/mobile/gtwo.html
- https://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=7
- https://www.wptv.com/weather/tropical-weather/tropics-nhc-monitoring-disturbance-in-eastern-atlantic-low-chances-to-develop
- https://usafacts.org/answers/how-active-is-the-latest-hurricane-season/country/united-states/

## Query 2: Average Atlantic named storms forming after October 15

I didn't find an official NOAA figure for exactly "after Oct 15." The closest sources are below.

- **Since 2000, after mid-October.** Weather.com (Oct 2020) said 
an average season since 2000 has produced two named storms after Oct. 13, one of which becomes a hurricane.
 That is a rough proxy for the Oct 15 cutoff, but it uses a different start date and an older period.
- **Share of activity.** 
About 15% of seasonal activity, measured by ACE, typically occurs after Oct. 13, according to CSU data.

- **Extremes.** 
Five storms formed after mid-October in 2019, and seven formed in 2005.
 
Only 2006 and 2002 this century produced no storm after September.

- **NOAA/NHC 1991–2020 benchmark.** 
An average season has 14 named storms, 7 hurricanes and

## Prediction markets on this question (Polymarket)
- RELATED (different resolution, context only): "Will there be 1-3 hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.98, Volume: $17.0K — Counts hurricanes, not named storms; a neighbouring measure that implies a low named-storm count.
- RELATED (different resolution, context only): "Will there be 4-6 hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.02, Volume: $17.2K — Hurricane count bucket, not named storms.
- RELATED (different resolution, context only): "Will there be 7+ hurricanes during the Atlantic Hurricane Season in 2026?" → Yes: 0.00, Volume: $5.0K — Hurricane count bucket, not named storms.

## Question dates and conventions
Dates: opened 2026-10-13; forecasting closes 2026-10-14; resolves 2026-12-01. Only events AFTER the open date can satisfy the criteria; assume the event has NOT happened unless a source shows it has. A question phrased 'before <date>' or 'by <date>' asks whether it happens between now and that date. The deadline for the outcome is the RESOLUTION date, not the close date.

## Recent news (AskNews, raw article summaries, newest first — read these directly)
11 AskNews articles (newest first; 6 from the last 48 h, 10 from the archive). Summaries are AskNews's own; dates are publication dates.

[2026-10-12] NHC Tracks Potential Atlantic Storm; Season Activity Below Average Due to El Niño
Orlando Sentinel — https://www.orlandosentinel.com/2026/10/12/hurricane-center-keeps-eye-on-distant-atlantic-system/
  - As of Monday, October 12, 2026, the National Hurricane Center (NHC) is monitoring a distant Atlantic system located a few hundred miles west of the Cape Verde Islands with a 20% chance of developing into the season's next tropical depression or storm within the next two to seven days.
  - Forecasters stated that 'environmental conditions appear, at best, only marginally conducive for development' in the immediate future, as upper-level winds are expected to become too strong by Tuesday.
  - However, heavy rainfall and potential flooding are expected across the western Cape Verde Islands over the next day or two.
  - This system follows Hurricane Isaias, which struck the Florida Panhandle near Destin on Sunday night with 105 mph sustained winds as a Category 2 hurricane, causing at least four deaths.
  - Isaias formed just shy of tying a 121-year-old record for the latest initial hurricane of the Atlantic season, with the previous record set on October 8, 1905.
  - The 2026 season has already produced nine named storms: Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, and Isaias.
  - The next name on the list is Josephine.
  - The National Oceanic and Atmospheric Administration (NOAA) updated its August forecast to predict between seven and 13 named storms, two to six of which would become hurricanes, potentially with zero to two major hurricanes.
  - This reduced activity is attributed to an extremely strong El Niño pattern generating wind shear in the Atlantic.
  - An average season typically sees 14 named storms and seven hurricanes.

[2026-10-12] Timeline of the 2026 Atlantic Hurricane Season: Ten Storms Tracked
The Hill — https://thehill.com/policy/energy-environment/5918384-tropical-tracker-timeline-of-the-2026-atlantic-hurricane-season/
  - The 2026 Atlantic hurricane season, officially running from June 1 to November 30, is predicted by the National Oceanic and Atmospheric Administration (NOAA) to be below-average in activity.
  - As of the publication date of October 12, 2026, there are no active storms, but the season has seen ten named systems.
  - Tropical Storm Arthur formed on June 17 with 40 mph winds, affecting the Texas and Louisiana coasts before becoming post-tropical on June 17.
  - Tropical Storm Bertha formed on July 20, reaching a peak of 60 mph winds on July 21, and made landfalls in Louisiana and near the Texas-Louisiana border on July 22 and 23, respectively, before dissipating on July 23.
  - Tropical Storm Cristobal formed on August 12 about 880 miles west of the Azores but weakened to a post-tropical remnant low by August 13.
  - Tropical Storm Dolly formed on August 27 and dissipated the following day.
  - Tropical Storm Edouard formed on August 31, reached 60 mph winds, and made landfall near Johnson Bayou, Louisiana, on September 1 before dissipating over Texas on September 3.
  - Tropical Storm Fay formed on September 19, reached a maximum of 70 mph winds on September 20, and experienced a complex lifecycle of weakening and restrengthening in the open Atlantic before dissipating on September 29.
  - Tropical Storm Gonzalo formed on September 24 near the Cabo Verde islands, peaked at 50 mph winds, and dissipated on September 26.
  - Tropical Storm Hanna formed on September 28 east of Bermuda and dissipated on September 30.

[2026-10-12] Atlantic Low-Pressure Zone Monitored by Mexico's Meteorological Service with 20% Cyclone Potential
Línea Directa — https://lineadirectaportal.com/mexico/zona-de-baja-presion-eleva-su-probabilidad-ciclonica-en-el-atlantico-cual-es-su-ubicacion-actual-2026-10-12__1718856
  - On October 12, 2026, the Servicio Meteorológico Nacional (SMN) of Mexico is monitoring a low-pressure zone in the Atlantic Ocean that has a 20% probability of developing into a tropical depression or storm within the next 48 hours and 7 days.
  - Located approximately 5,900 km east of the Quintana Roo coast and west of the Cape Verde Islands, the system is slowly moving toward the north-northeast.
  - If it strengthens to tropical storm status, it would be named 'Josephine', becoming the 10th named storm of the 2026 Atlantic hurricane season, which officially runs from June 1 to November 30, 2026.
  - The SMN notes that while the system currently poses no risk to national territory, the public is advised to monitor its evolution.
  - This development follows Hurricane Isaías, which made landfall near Destin and caused damage in northwest Florida earlier in the season.
  - By this date, 9 named storms have formed in the season, with one, Isaías, reaching major hurricane status.

[2026-10-12] Record-Breaking 2026 Pacific Hurricane Season Threatens Travel in Mexico, US, and Central America
Travel And Tour World — https://www.travelandtourworld.com/news/article/qczxcgzj5ldv/
  - According to the National Oceanic and Atmospheric Administration (NOAA), the 2026 Eastern Pacific hurricane season has reached historic levels, recording 17 named storms, seven hurricanes, and five major hurricanes by October 7, with an Accumulated Cyclone Energy (ACE) of approximately 192.1 units—nearly 97% above normal.
  - The Washington Post reported on October 12 that the cumulative duration of strong tropical-storm and hurricane winds surpassed the 2018 record.
  - Mexico faces the most immediate threats from Hurricane Simon, which carried sustained winds of approximately 115 mph and was positioned around 50 miles west-southwest of Cabo Corrientes on October 12, prompting warnings for Jalisco, Colima, and Michoacán, including tourist hubs like Puerto Vallarta and Manzanillo, with forecasts of up to 30 inches of rainfall in isolated areas.
  - The United States has experienced significant impacts, with Hawaii recording its second-wettest September in 36 years due to Hurricane Lowell, while remnants of Hurricane Rachel and Hurricane Polo caused flooding in California and Nevada.
  - Central American nations including Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama face potential risks from heavy rainfall and coastal flooding, though evidence does not confirm direct major hurricane strikes across all these countries.
  - The official season runs until November 30, creating uncertainty for flights, cruises, and hotel operations, though no comprehensive cancellation figures have been established.

[2026-10-12] National Hurricane Center Monitors Low-Pressure Wave Near Cabo Verde Islands
WPEC — https://cbs12.com/news/local/monitoring-one-wave-in-the-eastern-atlantic
  - As of October 12, 2026, in West Palm Beach, Florida, the National Hurricane Center is monitoring a low-pressure wave located a few hundred miles west of the Cabo Verde Islands in the far eastern Atlantic.
  - According to WPEC/CBS12, this system currently has a 20% chance of development over the next two to seven days.
  - While the environment is somewhat favorable for development over the next couple of days, upper-level winds are expected to increase towards the end of the week, becoming too strong for further organization.
  - Regardless of whether the system develops into a named storm, heavy rain is expected across parts of the Cabo Verde Islands.
  - The next name on the list is Josephine, and the 2026 Atlantic hurricane season is scheduled to end on November 30.

[2026-10-12] El Niño Drives Record-Breaking Pacific Hurricane Season with Five Major Storms
latinus.us — https://latinus.us/estilo-de-vida/2026/10/12/la-situacion-ha-sido-una-locura-el-nino-impulsa-record-de-tormentas-grandes-duraderas-en-el-pacifico-186860.html
  - The El Niño phenomenon has driven an unprecedented surge in large, long-lasting, and intense storms in the Pacific Ocean as of October 2026.
  - According to The Associated Press, the current season has set a record for the highest number of days with an active hurricane.
  - Five consecutive major hurricanes—'Nolo', 'Odalys', 'Polo', 'Rachel', and 'Simon'—have all reached major hurricane status with winds of at least 178.6 kilometers per hour.
  - Specifically, Hurricane 'Polo' established a new record for the duration of Category 5 status, surpassing the previous mark set in 2018.
  - The storm 'Rachel' caused waves to strike homes in Long Beach, California, on Monday, October 12, 2026.
  - Meteorologist Corbosiero noted that El Niño creates favorable conditions, comparing it to 'riding a bicycle with the wind at your back' in the Pacific, unlike the Atlantic.
  - Corbosiero added, 'It seems that in that area a (storm) generates after another,' and expressed no surprise at the potential for further storms.
  - Currently, there is a 90% probability that the system 'Trudy' will develop into a tropical storm off the coast of Mexico.
  - The article highlights that El Niño involves a warming of the equatorial Pacific, which differs from Atlantic conditions, and that warm waters allow storms like 'Polo' to maintain intensity even after passing through areas previously traversed by other systems.

[2026-10-09] 2026 Gulf Hurricane Season Defies El Niño with Four Named Storms
WDSU News — https://www.wdsu.com/article/the-gulf-doesnt-always-play-by-el-ninos-rules/74095261
  - Despite a super El Niño typically suppressing tropical activity across the deep tropics by producing strong wind shear, the Gulf of Mexico experienced significant homegrown development during the 2026 hurricane season.
  - According to WDSU News, four of the season's nine named storms formed in the Gulf: Arthur, Bertha, Edouard, and Isaias.
  - Isaias, the season's first and only hurricane and major hurricane, capitalized on favorable conditions to strengthen and come ashore along the northern Gulf Coast.
  - The article notes that while El Niño acts as a 'kill switch' for the Atlantic, the Gulf can still provide windows for storms to organize close to land.
  - As of October 09 2026, the storm is impacting southern Alabama and the Florida Panhandle.

[2026-10-09] Category 2 Hurricane Isaias Nears Gulf Coast, First of 2026 Season
NBC News — https://www.nbcnews.com/weather/hurricanes/live-blog/live-updates-hurricane-isaias-rcna602422
  - On October 9, 2026, the National Hurricane Center issued warnings and watches for the Gulf Coast between Mississippi and Florida as Category 2 Hurricane Isaias gains strength.
  - This event marks the first hurricane of the 2026 Atlantic season, occurring 75 years after the last time no hurricane formed by late September.
  - Forecasters initially predicted a 55% chance of a below-normal season in May, a figure that rose to 75% by August.
  - The current outlook predicts 7 to 13 named storms, with two to six potentially becoming hurricanes and zero to two reaching 'major' status (Category 3 or higher), compared to an average season of 14 named storms, seven hurricanes, and three major hurricanes according to the National Oceanographic and Atmospheric Administration.
  - Isaias is the ninth named storm of the year, following eight tropical storms that mostly formed between mid-August and September.
  - This contrasts with the previous year, when the first hurricane, Erin, formed in August.
  - The Atlantic hurricane season officially runs from June 1 to November 30.

[2026-08-06] NOAA Predicts Below-Normal 2026 Atlantic Hurricane Season Amid El Niño
https://www.kbtx.com — https://www.kbtx.com/2026/08/06/noaa-updates-2026-atlantic-hurricane-season/
  - According to NOAA's National Weather Service, the 2026 Atlantic hurricane season is predicted to be below-normal, with a 75% probability, despite the climatological peak occurring on September 10.
  - As of August 6, 2026, two named storms have formed in the Gulf of Mexico.
  - Forecasters project the season (June 1 to November 30) will produce 7 to 13 named storms, 2 to 6 hurricanes, and 0 to 2 major hurricanes.
  - The quiet start is primarily attributed to a strengthening El Niño that emerged in June, which increases vertical wind shear and disrupts storm development.
  - While typical averages are 14 named storms, seven hurricanes, and three major hurricanes, emergency officials warn that even a single storm can cause devastating impacts.

[2026-06-02] 2026 Atlantic Hurricane Season Names and Forecast Released
rd.com — https://www.rd.com/article/hurricane-names-2026/
  - The 2026 Atlantic hurricane season names have been released by the National Hurricane Center, featuring 21 names ranging from Arthur to Wilfred, alternating between male and female names and excluding letters Q, U, X, Y, and Z.
  - The list includes Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, Isaias, Josephine, Kyle, Leah, Marco, Nana, Omar, Paulette, Rene, Sally, Teddy, Vicky, and Wilfred.
  - According to the National Weather Service, the 2026 season is predicted to be below-average, with an estimated 8 to 14 named storms, 3 to 6 hurricanes, and 1 to 3 major hurricanes, compared to an average of 14 named storms, 7 hurricanes, and 3 major hurricanes.
  - Ken Graham, NOAA’s National Weather Service director, stated that while El Niño typically suppresses hurricane development in the Atlantic Basin, there remains uncertainty in how the season will unfold, emphasizing the need for preparedness.
  - The article was written by Ally Childress and published on June 02, 2026, by Reader's Digest.

[2026-06-01] 2026 Atlantic Hurricane Season Begins with New Name List
Yahoo — https://www.yahoo.com/news/weather-news/articles/2026-atlantic-hurricane-season-begins-165639522.html
  - The 2026 Atlantic hurricane season begins on June 1, 2026, with NOAA predicting 8 to 14 named storms, of which 3 to 6 are forecast to become hurricanes.
  - The World Meteorological Organization (WMO) has released the official 2026 Atlantic Basin names, which include Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, Isaias, Josephine, Kyle, Leah, Marco, Nana, Omar, Paulette, Rene, Sally, Teddy, Vicky, and Wilfred.
  - These names are selected from alphabetical lists that are recycled every six years according to a 'strict procedure' designed to facilitate disaster risk awareness and preparedness.
  - Previously, storms were named 'arbitrarily' or after the saint's day they occurred on, and exclusively female names were used until 1978.
  - Sarah Perkel, a reporter for the USA TODAY Network's Florida Connect team, authored the article.

## Research reports (one per dimension: web search + page reads, dated, with sources)
### CURRENT STATE
- [2026-10-13] The NHC main page says 
there are no tropical cyclones in the Atlantic at this time
. The NHC outlook issued 2 PM EDT Oct 13 says 
tropical cyclone formation is not expected over the next 7 days
. The 2 AM outlook had given the eastern Atlantic low west of Cabo Verde only 10% (48 hours and 7 days), down from 20% on Oct 12. I read the 2 AM text on the fetched gtwo page. The 2 PM text appears only in the search snippet. https://www.nhc.noaa.gov/gtwo.php
- [2026-10-13] Current count: 9 named storms (Arthur through Isaias). Next name is Josephine. Four trackers agree on nine: CNN (
nine named storms so far in 2026
), hurricanesmapped, KXAN and the Wikipedia infobox. https://www.cnn.com/interactive/2026/05/weather/hurricanes-tropical-storms-tracker-vis/
- [2026-10-13] Wikipedia's season infobox lists 
total storms: 9, hurricanes: 1, major hurricanes: 1
 and 
ACE 18.0
. My direct fetch of that page returned a stale copy from about Aug 31 showing 4 storms, so I used the search snippet for the current figures. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Storm timeline (NHC dates per The Hill): Arthur Jun 17, Bertha Jul 20, Cristobal Aug 12, Dolly Aug 27, Edouard Aug 31, Fay Sep 19, Gonzalo Sep 24, Hanna Sep 28. Isaias was named Oct 7 (TD Nine on Oct 6), became a hurricane Oct 8 and made landfall near Destin, FL on Oct 9. The Hill's text says "ten named systems", which conflicts with its own list of nine names. The NHC-based trackers all say nine. https://thehill.com/policy/energy-environment/5918384-tropical-tracker-timeline-of-the-2026-atlantic-hurricane-season/
- [2026-10-09] Isaias made landfall near Destin as a Category 2 storm after peaking at Category 3 (120 mph). KXAN's timeline confirms the Cat 3 peak and the landfall. https://www.kxan.com/weather/2026-tropical-timeline-tracker/
- [2026-10-12] The Orlando Sentinel reports the Cabo Verde system had a 20% formation chance, with 
the 10th system to be named Josephine
 if it developed. NHC cut that to 10% on Oct 13. https://yahoo.com/news/weather-news/articles/isaias-florida-hurricane-center-eyes-130437035.html
- [2026-11-30] One year ago, the 2025 season finished with 
13 named storms, five hurricanes and four major hurricanes
. The last 2025 storm was Melissa, in late October. This year's count of 9 compares with 13 at the end of 2025. https://www.noaa.gov/news-release/2025-atlantic-hurricane-season-marked-by-striking-contrasts
- [2026-08-06] NOAA's August update, which the question links, cut its forecast to 
seven to 13 named storms, two to six hurricanes, zero to two major hurricanes
, per Wikipedia's summary. NOAA's May range was 8–14. CSU's July forecast was 9 named storms. 1991–2020 average is 14.4. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Trajectory: formation has been sparse, with 9 storms in about 4 months. Seven formed from Jun 17 to Sep 28, then Isaias in October. Seasonal ACE is about 18. A very strong El Niño is suppressing activity. The Eastern Pacific is record-active, with 17 named storms by Oct 7. https://www.travelandtourworld.com/news/article/qczxcgzj5ldv/
- [2026-10-13] Next data point: NHC Tropical Weather Outlooks come out at 2 AM, 8 AM, 2 PM and 8 PM EDT, with advisories as needed. The season ends Nov 30. The final count becomes official only after NHC post-season review, so storms can be added or removed later. https://www.nhc.noaa.gov/

BOTTOM LINE: The NHC count is 9 named storms as of Oct 13, with no active Atlantic systems and no formation expected in 7 days. The final number can only rise from 9 if Josephine or a later storm forms by Nov 30, or if post-season review reclassifies a system.

NOT FOUND: A machine-readable NHC season table or CSV (the nhc.noaa.gov/data/tcr page was not fetched), and a current 2026 Wikipedia copy (the fetch returned a stale one). I also found no source confirming a tenth storm. The Hill's "ten" looks like an error.

### BASE RATE
- [2026-10-13] NHC's 2026 table, updated 15 UTC on 13 Oct, shows **9 named storms** (Arthur through Isaias), 1 hurricane, 1 major hurricane and ACE 18.0. NHC lists this as 3 named storms below the 1991–2020 normal for the date. Isaias (Cat 3, 105 kt, 959 mb) is the only hurricane. https://www.nhc.noaa.gov/data/tcr/index.php
- [2026-10-13] NHC's 2 PM EDT outlook on 13 Oct says Atlantic tropical cyclone formation is not expected over the next 7 days. The Cabo Verde system, rated 20% on 12 Oct, is no longer flagged. The next name is Josephine. That makes 9 the floor, and the count is unlikely to change before about 20 Oct. https://www.nhc.noaa.gov/gtwo.php
- [2026-10-13] The Eastern Pacific is extremely active, with Hurricane Simon and new Tropical Storm Trudy. Ryan Maue describes a "full-tilt Super El Niño", Atlantic relative SST of about -0.52°C and Atlantic ACE of only 18, against more than 320 in the Eastern Pacific. https://weather.substack.com/p/october-13-2026-tuesday-tropical
- [2026-08-06] NOAA's August update forecast 7–13 named storms, 2–6 hurricanes and 0–2 major hurricanes, at 70% confidence. Those ranges include the 2 storms already formed. It gave a 75% chance of a below-normal season. The May outlook was 8–14 named storms. The season is on track to land inside the August range if it ends at 9–13. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml
- [2026-05-28] Other forecasts: CSU 13 named storms, AccuWeather 11–16, Met Office 9 (range 6–12), University of Arizona 20 (April), TSR 14 (December). The dispersion is wide, and the El Niño-aware forecasters (NOAA, Met Office) are the closest to the current count of 9. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2020-10-13] Climatology after 13 Oct. Since 2000, an average season produced two named storms after 13 Oct, one of them a hurricane. The record is 7 storms, in 2005. 2002 and 2006 had no storm after September. About 15% of ACE typically occurs after 13 Oct. In 8 seasons the last storm formed in December. https://weather.com/storms/hurricane/news/2020-10-13-hurricane-season-not-over-late-october-november-us
- [2025 window] Same window in 2025, from the Wikipedia season page. Lorenzo formed 13 Oct, then Hurricane Melissa on 21 Oct. The season ended with 13 named storms (Jerry and Karen earlier in October), so about +1 to +2 after the 13 Oct cutoff. https://en.wikipedia.org/wiki/2025_Atlantic_hurricane_season
- [2024 window] Same window in 2024, an active year that had Milton on 9 Oct. Nadine formed 19 Oct and Oscar followed in mid-October. The season finished with 18 named storms, so the post-13 Oct additions included Nadine, Oscar and several November storms. The list is from my memory of the season and only Nadine and Oscar are confirmed on the page. https://en.wikipedia.org/wiki/2024_Atlantic_hurricane_season
- [2023 window] Same window in 2023, an El Niño year. The season ended with 20 named storms, tied with 1933, with the last system dissipating on 28 Oct and nothing formed after that. Hurricane Tammy (the 19th storm) formed after mid-October. The page's forecast table shows NOAA's August range was 14–21 (actual 20) and CSU's was 18. 2023 was the most active El Niño season on record because of record-warm Atlantic SST. https://en.wikipedia.org/wiki/2023_Atlantic_hurricane_season
- [2026-10-08] 2026 is anomalous. It was the latest first hurricane since 1905 and the first season since 1914 to have no hurricane as late as 21 Sept. Fay, Gonzalo and Hanna formed in a 10-day burst in late September. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Reports say the NHC watched the Cabo Verde system on 12 Oct and that Isaias made landfall near Destin on 11 Oct. The Wikipedia figure of 9 storms matches NHC. Some reports say 10 storms (The Hill) or a "10th named storm" (SMN). Those are errors; NHC's own count is 9. https://www.orlandosentinel.com/2026/10/12/hurricane-center-keeps-eye-on-distant-atlantic-system/

BOTTOM LINE: The final count is 9 plus whatever forms from 14 Oct to 30 Nov. Historical post-13 Oct additions are typically 0–5 (average about 2, from 0 in 2002 and 2006 up to 7 in 2005). With a strong El Niño and no Atlantic development expected for 7 days, the likely range is 9–11, and a final count of 9 is plausible.

NOT FOUND: An NHC-archived record of the count on 13 Oct in prior years (I relied on Wikipedia season pages). Verified post-13 Oct 2024 storm counts. Any official NHC statement about a post-season reanalysis that could change the count.

### KEY FACTORS
- [2026-10-08] CPC's ENSO discussion says El Niño is still strengthening. Niño-3.4 is +2.1°C and Niño-1+2 is +3.9°C. Odds of a record-strength event are 83% for Oct–Dec and 70% for Nov–Jan. The next update is Nov 12. This is the main suppressor, and it will not weaken before Nov 30. Nobody controls it. https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.shtml
- [2026-09-21] Fox Weather's FOX Forecast Center found that in Super El Niño years since 1960, no tropical system has formed in the Gulf or Caribbean in October. The Gulf and Caribbean, especially the Central American Gyre, are the usual October source of homegrown storms. With that source largely closed, any further storm would probably be an Atlantic-origin or subtropical system. Isaias, which formed in the Gulf in early October, is an exception to that pattern. https://www.foxweather.com/weather-news/historically-quiet-atlantic-hurricane-season-super-el-nino
- [2026-10-13] NHC's 2 PM EDT outlook shows no formation expected for 7 days. The earliest a tenth storm could form is therefore about Oct 20, which leaves roughly 41 days of the season. That window is where any increase over 9 would come from. https://www.nhc.noaa.gov/gtwo.php
- [2026-09-21] The same Fox piece says about 40% of a typical season's activity is still to come at that point in the season. Climatologically, October–November formation is concentrated in the Caribbean and western Atlantic. This year Isaias used a brief "sweet spot" in the Gulf helped by an MJO pulse (Action News Jax, 10/7 snapshot). So a later MJO pulse is the likely trigger for any further storm (https://actionnewsjax.com/weather/talking-tropics-wmike-quiet-atlantic-pacific-remains-active/KLQF72NI7BGUZJIU36XVURE6BA). The NHC outlook shows nothing yet.
- [2026-10-14] CSU issues its next two-week forecast on Oct 14 (scheduled in its Aug 5 document; the report itself is not yet published). It uses NHC outlooks, global models and MJO state. It will be the first expert read on Oct 14–27 activity. https://tropical.colostate.edu/Forecast/2026-0805.pdf
- [2026-08-05] CSU's seasonal forecast of 9 named storms was reached on Oct 7, with Isaias. CSU's ACE forecast was 50 and the season is at about 18. CSU's August report used the same 9 named storms as its July one, so the named-storm target is already met while energy is far below forecast. The remaining shortfall is in intensity and duration, not storm count. https://stthomassource.com/content/2026/08/05/csu-maintains-well-below-normal-forecast-for-2026-atlantic-hurricane-season/
- [2026-09-xx] Klotzbach (CSU) told CBC that El Niño deserves almost all the blame and that "substantial" deep-tropics development is unlikely. Wind shear is strongest south of about 20°N. Short-lived storms near the Cabo Verde islands and subtropical storms are the ones most likely to be added. This season's list is mostly brief, weak storms of that kind (Dolly, Gonzalo, Hanna), and such storms still count as named storms. https://www.cbc.ca/news/science/quiet-2026-atlantic-hurricane-season-9.7352480
- [2026-09-xx] Sequence needed for a final count above 9: (1) shear and sinking air ease briefly, or an MJO pulse passes; (2) NHC flags a disturbance; (3) it reaches tropical or subtropical storm status (an NHC call), with 34 kt winds. Nothing is flagged now. The NHC post-season review in 2027 could reclassify weak systems, but that is outside the Dec 1 resolution. NHC alone decides the count. (Inference from the sources above.) https://www.nhc.noaa.gov/gtwo.php
- [2026-08-06] NOAA's August outlook cites a northward-shifted West African monsoon. That is less conducive to African wave development, and it supports few Cabo Verde-type storms. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml

BOTTOM LINE: The count is 9 now. It rises only if an NHC-named system forms between about Oct 20 and Nov 30, against a strengthening El Niño with no Gulf or Caribbean precedent in October during Super El Niño years. The most plausible outcomes are 9 or 10.

NOT FOUND: The CSU Oct 14 two-week forecast (not yet issued). A MJO forecast for late October. Any official NHC statement on late-season outlook.

### EXPERT VIEW
- [2026-10-13] The NHC graphical outlook (issued 2 PM EDT) says 
there are no tropical cyclones in the Atlantic
. Its Spanish text says no formation is expected in the next 7 days. The 20% disturbance near Cabo Verde, which the October 12 articles described, is no longer flagged. https://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=7
- [2026-10-13] The count stands at 9 named storms, Arthur through Isaias. Wikipedia's season infobox shows 
9 total storms, 1 hurricane, 1 major hurricane
, and ACE of 18.0. Josephine is next. The Hill's timeline says "ten named systems," but the list it gives ends at Hanna (8), and NHC, Wikipedia and Orlando Sentinel all say 9. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-08-06] NOAA's August update (the NOAA release cited in the question) calls for 
7-13 named storms (70% probability), including the 2 recorded at that time, 2-6 hurricanes, and up to 2 major hurricanes
. It puts the probability of a below-normal season at 75%, up from 55% in May. NOAA's May outlook was 8-14 named storms. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml
- [2026-08-06] NOAA cites El Niño, with 
a 90% chance of it becoming a strong or very strong event
, as the main suppressing factor. The 9 storms already formed are inside NOAA's 7-13 range, and the ranges include storms already formed. https://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.shtml
- [2026-08-05] CSU's final seasonal forecast (published about Aug 5) is 9 named storms, 4 hurricanes and 1 major hurricane, 
including Arthur and Bertha
. That is the same total as the July 8 forecast. CSU's earlier forecasts were 13 (April), 11 (June) and 9 (July). The August CSU report implied 7 more storms after Bertha. https://www.chron.com/news/article/hurricane-storm-forecast-csu-22375424.php
- [2026 pre-season to August] Other forecasts, per Wikipedia's table: TSR 14 (December) then 12 (April); Univ. of Arizona 20 (April) then 13 (June); NCSU 12-15; UKMO 9 (June-November only); TWC 12; INSMET 11; UPenn 7-13. These were mostly April-June forecasts and are older than NOAA's and CSU's August updates. https://en.wikipedia.org/wiki/2026_Atlantic_hurricane_season
- [2026-10-12] Kalshi's hurricane-naming markets imply that Josephine is unlikely to become a hurricane. The "first hurricane name" market gave Isaias about 92%. Another market had Josephine at about 25% to be a hurricane and Kyle at about 18%. These are the odds a given named storm becomes a hurricane. They are not a direct market on the total named-storm count. I could not retrieve a Kalshi or Polymarket market on the final storm total. https://kalshi.com/category/climate/hurricanes
- [2026-10-12] The NHC 
expects a very strong El Niño to last through fall and suppress Atlantic development
. The Eastern Pacific is hyperactive (17 named storms by October 7, per Travel And Tour World). As of today, NHC is advising on Eastern Pacific Hurricane Simon and TD 21-E. https://www.foxweather.com/weather-news/noaa-2026-hurricane-season-forecast-august-super-el-nino
- [2026-10-12] On the Atlantic, Orlando Sentinel noted the NHC saw only "marginally conducive" conditions for the Cape Verde disturbance, with shear rising. WITN reported the NHC later put that system's formation odds at 0%. That points to no near-term addition to the count. https://www.witn.com/2026/10/11/national-hurricane-center-is-monitoring-one-area-deep-atlantic/
- [Track record] NOAA's 2025 outlook was 13-19 named storms, trimmed in August to 13-18. The season produced 
13 named storms
, inside the range. NOAA's 2026 August range of 7-13 already contains today's count of 9. https://www.cbsnews.com/news/2026-atlantic-hurricane-season-outlook-noaa-forecast/
- [Climatology] The 1991-2020 average is 14.4 named storms. CSU lists analog years 1965, 1982, 1987, 1997, 2009 and 2015, with most of them 
not even seeing over 10 named storms
. https://www.wbrz.com/news/update-csu-further-lowers-predicted-number-of-named-storms-for-2026-hurricane-season/

BOTTOM LINE: The count is 9 as of 2026-10-13. Expert forecasts of 7-13 (NOAA) and 9 (CSU) were issued in early August, and the 9 formed so far already sits at CSU's total. The NHC shows no Atlantic development expected for the next 7 days, so any further storms would have to form in the remaining weeks of the season, which runs to November 30. Late-season storms are possible even in strong El Niño years.

NOT FOUND: A Kalshi or Polymarket market on the total named-storm count. Any NOAA or CSU forecast newer than early August; CSU's two-week forecasts were not checked. Any primary NHC page confirming the count of 9. The Hill's "ten" is inconsistent with the other sources.

### HIGH CASE
- [2026-10-13] NC State Climate Office says forecasts had pointed to southern Gulf development for about two weeks. Gulf sea surface temperatures there are at record warmth, and Isaias rapidly intensified from a disturbance there. This is the main high-side mechanism: a late-season Gulf or western Caribbean-edge system that grows locally, away from the shear-choked deep tropics. The same page says the three strongest prior El Niños (1982, 1997, 2015) produced only five named storms in October in total. Their wording also marks Isaias as unusual for an established El Niño this late. https://climate.ncsu.edu/blog/2026/10/rapid-reaction-heavy-rain-tornadoes-accompany-isaias-in-nc

- [2026-10-01] CNN (via Klotzbach, CSU) says Atlantic water is warm enough for hurricanes. The limiting factor is record-strong shear in the main development region since the summer. CNN also says the Caribbean is "fully entrenched" in El Niño shear, so it is likely off the table for the rest of the season. Late-season storms tend to form in the Gulf, Caribbean and off the Southeast coast. Upside therefore depends on the Gulf and subtropical routes, not the Caribbean. https://www.cnn.com/2026/10/01/weather/el-nino-september-hurricane-season-climate

- [2026-10-01] CNN says Fay peaked 4 mph below hurricane strength and may be upgraded in NHC's post-season review. An upgrade would not change the named-storm count. The reclassification route to a higher count would need an unnamed system (a subtropical or short-lived storm) to be added in post-season analysis. I found no evidence of any such candidate. https://www.cnn.com/2026/10/01/weather/el-nino-september-hurricane-season-climate

- [2026-08-05] CSU's seasonal total of 9 implied 7 more storms after Bertha. That total has already been reached with Isaias, with about 7 weeks left. CSU's two-week forecasts were set for Sept 30 and Oct 14, so the next one is due tomorrow. It could signal any late-season upside. https://tropical.colostate.edu/Forecast/2026-0805.pdf

- [2026-07-08] CSU's July report described the El Niño as "dominant," with very high shear and near-average Caribbean and tropical Atlantic sea surface temperatures. CSU's August update called Atlantic SSTs "slightly above" average. https://tropical.colostate.edu/forecasting.html

- [2026-06-?? Fox Weather, about 98 days old] Fox Weather cited the European model as showing near-average activity from late September into November. It said returning above-average Atlantic SSTs could partly offset El Niño, with more development in the Gulf and off the Southeast coast. The outcome so far (Fay, Gonzalo, Hanna and Isaias in Sept 19–Oct 7) matches that signal. The signal is a forecast-model guide, not a verified count. https://www.foxweather.com/weather-news/latest-eurorpean-forecast-shows-near-average-activity-atlantic-around-late-season-el-nino-intensifies

- [2026-09-12] Andy Hazelton (University of Miami) compared the pattern with 1982, 1997 and 2015. Those are the super El Niño analogs, and WeatherOnThisDay's table gives them 8.3 named storms on average (1997: 8; 2015: 11). The 2015 total of 11 is the closest analog for a high end. Adding 2 to 9 would reach it. https://lynnwoodtimes.com/2026/09/12/el-nino-2/ and https://weatheronthisday.com/trends/el-nino-hurricane-seasons-history

- [2026-10-13] The Eastern Caribbean outlook page, whose content is partly stale, says the low in the east Atlantic was no longer expected to develop under strong upper-level winds. Strong shear over the Caribbean is keeping the Atlantic quiet, and the page's chart compares the 2026 shear with the 1999–2023 band. That supports the NHC 7-day "no formation" signal. https://dewedda.com/outlook

- [2009 analog] 2009 (9 named storms, a moderate El Niño) added Grace (Oct 4) and Henri (Oct 6) in October, then Hurricane Ida in November. Ida was the first November Gulf hurricane since 1985. This is a template for the high case: a late-season storm from a nonclassical source (the Caribbean-edge/Gulf, i.e., Central American Gyre or frontal) after a quiet stretch. https://tropical-cyclones.fandom.com/wiki/2009_Atlantic_hurricane_season

- [2026-10-13] The NHC 0015 UTC discussion showed a 1009 mb low on the wave at 17.5N 31W. The 2 PM outlook later dropped it. https://www.nhc.noaa.gov/text/MIATWDAT.shtml

- [Reasoning, mine] The high scenario is 11–12 final storms. It needs 2–3 additions from Oct 14 to Nov 30, from Gulf, western Caribbean or subtropical sources. Each such storm would need to form in a window outside the next 7 days (so after about Oct 20). The upper end is near the top of NOAA's 7–13 range. That would require a late-October MJO pulse or a Central American Gyre, and the available sources did not show either.

BOTTOM LINE: The high path is a few late Gulf, western Caribbean or subtropical storms, backed by record-warm Gulf SSTs and Isaias's rapid intensification. Strong shear and no formation expected for 7 days limit it, so the plausible top is roughly 11–12, and the sources give no evidence for more.

NOT FOUND: The CSU Oct 14 two-week forecast, since it is not issued yet. Any MJO or Central American Gyre forecast for late October. A primary NHC page showing a tenth storm. A named-storm-total market.

### LOW CASE
- [2026-10-13] The NHC Atlantic 2-day and 7-day outlooks both list "Disturbances: None" on the fetched page. The 2 PM EDT text says formation is not expected in the next 7 days. The NHC is advising only on Eastern Pacific systems, Hurricane Simon and TD 21-E. That puts the earliest plausible Josephine at about Oct 20 or later. https://www.nhc.noaa.gov/gtwo.php

- [2026-10-13] The NC State Climate Office counted only five named storms in October or later across the three strongest El Niños on record (1982, 1997, 2015). That is about 1.7 per year, and it includes storms that formed in early October. It calls Isaias part of a "rare breed" of storms that overcame El Niño shear this late. A low outcome of 9, or 9 plus one, fits that analog record. https://climate.ncsu.edu/blog/2026/10/rapid-reaction-heavy-rain-tornadoes-accompany-isaias-in-nc

- [2026-10-13] Isaias formed in the southern Gulf, helped by record-warm water and an MJO pulse (Action News Jax, Oct 12). It was a narrow "sweet spot" between zones of strong shear. Whether it repeats depends on the MJO returning to a favorable phase. The next favorable MJO window was not found in any source. https://actionnewsjax.com/weather/talking-tropics-wmike-quiet-atlantic-pacific-remains-active/KLQF72NI7BGUZJIU36XVURE6BA

- [2026-09-24] John Morales (NBC Miami) says the Atlantic air has mostly been sinking, and that this stable air plus very strong shear should keep the rest of the season "mostly quiet". He notes this El Niño is the strongest on record. That is a mechanism beyond shear alone. https://www.nbcmiami.com/weather/hurricane-season/john-morales-2026-atlantic-hurricane-season-was-expected-to-be-slow-but-not-dead/3863752/

- [2026-10-12] ABC13 Houston reports no Gulf development expected for at least 7 days and a large Saharan dust plume in place this week. The Cabo Verde system was given only a 20% chance on Oct 12 and was dropped on Oct 13. Gulf October storms tend to track east, which favors Florida. This is a mechanism for more suppression in the near term. https://abc13.com/tropicalupdate/

- [2026-09-10] ACE was 4.4 by Sept 10, about 7% of the 58.2 typical by mid-September (NBC Miami). Most of the storms were short-lived. Of the 8 pre-Isaias storms, five peaked at 50–70 mph. A low outcome fits a pattern of weak, brief storms. https://www.nbcmiami.com/news/local/peak-of-2026-atlantic-hurricane-season-tropical-activity-historic-low/3857305/

- [2026-09-28] Super El Niño analogs (1982, 1997, 2015) averaged 8.3 named storms, with finals of 6, 8 and 11. 1987, a moderate El Niño, had 7. The 1982 season's last storm dissipated Oct 3. The 1997 season ended at 8. These show that the final count can be ≤9 in the strongest El Niño years. 2026 already has 9, so the analogs imply only 0–2 more. Sources: https://weatheronthisday.com/trends/el-nino-hurricane-seasons-history and https://en.wikipedia.org/wiki/1982_Atlantic_hurricane_season

- [2026-09-10] The CSU forecast of 9 named storms, the NOAA August range of 7–13, and the 9 storms now formed mean the season already sits at CSU's total. The NOAA 7–13 range includes the storms formed so far, which contributes to a low outcome of 9 if nothing else forms. CSU's page shows its Aug 5 update was the last one, and I found no update since. https://tropical.colostate.edu/forecasting.html

- [2026-10-13] Counter-signal to a low outcome: Fox Weather's Euro-model piece, from about July 7, suggested above-average Atlantic SSTs could offset El Niño from late September into November. The Atlantic did produce Fay, Gonzalo, Hanna and Isaias in that window, so the SST offset is visible. A low outcome of 9 depends on this offset not producing a late-October Caribbean storm. https://www.foxweather.com/weather-news/latest-eurorpean-forecast-shows-near-average-activity-atlantic-around-late-season-el-nino-intensifies

- [2025-11-30] Climatology works against a zero-addition outcome. In 2025 there was no November storm, and Melissa dissipated on Oct 31. That shows a season can end before November. In El Niño years, storms after mid-October are not guaranteed. https://en.wikipedia.org/wiki/2025_Atlantic_hurricane_season

- [2026-10-13] Signals that would support a low result, i.e. a final count of 9 or 10: the NHC outlook stays blank through about Oct 25; the Caribbean or Central American Gyre develops no disturbance; Saharan dust and sinking air persist; Eastern Pacific activity remains dominant. Signals against it: an MJO pulse arriving in the Caribbean in late October, or an NHC outlook area for the Caribbean or western Atlantic. https://www.nhc.noaa.gov/gtwo.php

BOTTOM LINE: The low scenario is a final count of 9, with 10 as the next step. It rests on a blank NHC outlook through about Oct 20, strong El Niño shear and stable air, and strong-El-Niño analogs that added about 0–2 storms in October or later. Late-season storms from Gulf or Caribbean SST pockets, as Isaias showed, are the main route out of this scenario.

NOT FOUND: A forecast of when the MJO or Central American Gyre turns favorable. Any CSU or NOAA forecast issued after early August. A Kalshi or Polymarket market on the total storm count. Per-year counts of October-or-later storms in 1982, 1997 and 2015 beyond the NC State total of five.

## Required pre-forecast walkthrough

Before giving percentiles, address these explicitly in your rationale:
  (0) Resolution check: what the resolution source currently shows, and whether the value is already known or fixed as of today.
  (a) The time left until the question resolves.
  (b) The outcome if NOTHING changes from today (the status quo value).
  (c) The outcome if the CURRENT TREND continues.
  (d) The expectations of experts / markets / base rates.
  (e) A plausible scenario that produces a LOW outcome (near p10).
  (f) A plausible scenario that produces a HIGH outcome (near p90).

## Calibration guidance

- **Be humble about tails.** Good forecasters set WIDE 90/10 intervals to account for unknown unknowns. Narrow tails get punished by the log score far more than slightly-biased medians.
- **Status quo anchoring.** The p50 should be close to the status quo value unless you have strong evidence of a trend.
- Don't pile mass at one value — if you're tempted, widen the spread by 20-50%.
- **Markets and experts are priors, not anchors.** If a SAME QUESTION market, analyst consensus, or community percentiles appear in the evidence, treat them as a strong prior — centre near them and widen — and name the specific evidence they lack whenever you move away. RELATED markets are context only.
- **Open bounds carry real mass.** Where a bound is OPEN, the outcome can land beyond it and the question then resolves "below range" / "above range". Put honest probability there (p_below_min / p_above_max in the output) instead of squeezing the distribution inside the displayed range; the season's worst losses were outcomes that landed where the distribution had ~2%.
- **Relative-return / spread questions ("how much will X's return exceed Y's").** A near-zero median is usually right, but size the TAILS to the more VOLATILE leg, not to a generic 2-3pp spread. Two broad equity indices (e.g. Nasdaq-100 vs S&P 500) do stay within roughly ±2-3pp over a two-week window. But when one leg is a commodity (crude oil, gold) or a single high-beta stock (e.g. Nvidia), the two-week realized spread regularly reaches ±10pp or more — crude-vs-equity spreads have hit ±18pp. In those cases set p10/p90 to at least ±10pp (±15pp or wider for oil) while keeping the median near the status-quo spread; the 2-3pp intuition applies only to index-vs-index.
- **Heavy-tailed one-off magnitudes (opening-weekend box office, product-launch or debut numbers).** Pre-event tracking for these routinely misses by ±40% or more, and results land both far above and far below the consensus. Do NOT treat the displayed [min, max] range as the plausible range or clamp p10/p90 to its edges: the outcome can fall outside the range in either direction (recent opening weekends resolved ~7% above a displayed ceiling in one case and roughly half the displayed floor in another). Set p10/p90 wide enough that a 2x-or-0.5x surprise versus your central estimate still lands inside the interval, and when concrete current tracking disagrees with historical/franchise base rates, weight the tracking.

## Output

Return ONLY valid JSON, no markdown fences:

{
  "rationale": "<address (a) through (f) above, then state your distribution — 6-10 sentences total>",
  "p10": <number>,
  "p25": <number>,
  "p50": <number>,
  "p75": <number>,
  "p90": <number>,
  "p_above_max": <probability in [0, 1] that the outcome is ABOVE 20.5>,
  "unverified_claims": ["<a fact your forecast depends on that no source above confirms, one that would move your p50 by a quarter of your p10-p90 width if false; [] if none>"]
}

Percentiles MUST be in non-decreasing order (p10 <= p25 <= p50 <= p75 <= p90). p_above_max is P(outcome > 20.5). These must agree with your percentiles: a p10 below the lower bound implies p_below_min > 0.10, a p90 above the upper bound implies p_above_max > 0.10. A mass below ~0.05 on an open side needs a specific reason.