How many Central Pacific named storms will there be this year?
Short Answer
At least six Central Pacific named storms have already occurred by mid-September, confirming more than five named storms for 2026; the market prices this outcome at 93.0%.
1. Market Behavior & Drivers
This market has consistently priced in a high probability of more than two named storms because the Central Pacific hurricane season quickly surpassed that threshold. NOAA reported four named storms by September 2, a count already double the 1991–2020 seasonal average. This early, above-normal activity established the baseline for the market's near-certainty, holding the price at 98% through mid-September.
The small price increase to 99% on September 25, which saw the market's only significant volume, followed additional reports confirming the active season. Moody's counted six named storms by September 16, and a September 23 CNN report noted a total of 18 named storms across the combined Eastern and Central Pacific basins. This flow of reinforcing data appears to have eliminated the market's minimal remaining uncertainty.
- Above 6 named storms is highly likely, with six already confirmed by mid-September.
- Above 7 named storms appears likely given strengthening El Niño and late-season activity.
Who Wins and Why
| Outcome | Market | Model | Why |
|---|---|---|---|
| Above 4 | 99.0% | 100.0% | Research does not highlight strong supporting evidence. |
| Above 5 | 93.0% | 100.0% | At least six named storms had already occurred by September 16, 2026, meeting this threshold. |
| Above 6 | 88.0% | 91.1% | Six storms were confirmed by mid-September, and El Niño conditions project above-normal activity. |
| Above 2 | 99.0% | 100.0% | Research does not highlight strong supporting evidence. |
| Above 3 | 93.0% | 100.0% | Research does not highlight strong supporting evidence. |
Current Context
The Central Pacific recorded at least six named storms through late September. Moody’s reported six named storms, four hurricanes, and two major hurricanes by September 16 [1]. NOAA’s season summary counted four named storms by September 2, already two above the 1991–2020 named-storm normal [2][3]. Activity remained elevated late in the month; CNN reported 18 combined Eastern and Central Pacific named storms by September 23 [4]. As of September 28, hurricanes Nolo and Polo, plus Tropical Storm Rachel, were active, with another area monitored for development [5]. The National Weather Service outlook on September 24 also listed Tropical Storm Nolo and a separate disturbance east-southeast of Hawaii with a 30% seven-day formation chance, indicating continued upside risk [6][7].
NOAA forecasts a 70% probability of an above-normal Central Pacific season. The forecast projects 5–13 tropical cyclones, including tropical depressions, tropical storms, and hurricanes, with a practical midpoint of approximately nine systems [8][9]. NOAA attributes this elevated outlook to expected moderate or stronger El Niño conditions; its May 2026 ENSO outlook gave a 96% chance of El Niño during the hurricane season [8][9][10]. Central Pacific El Niño years typically produce 2–8 tropical depressions and storms, versus 0–4 in La Niña years [9][10]. Weathernews’ September 10 mid-season forecast projected 3–4 Central Pacific formations for the season, with 1–2 expected from September onward, citing above-normal activity from local genesis and systems entering from the Northeast Pacific [11]. NOAA does not publish a narrower named-storm-only point forecast [8]. The Central Pacific hurricane season runs from June 1 to November 30 [8].
Prediction markets indicate high probabilities for several named storms. ClearMarket/Kalshi pricing on September 28 implied a 97% probability of more than two Central Pacific named storms, 90% for more than three, 82% for more than four, 30% for more than five, and 14% for more than six [12]. A September 12 snapshot showed more than two named storms at 99% [13]. These contracts resolve using National Weather Service confirmation for storms occurring between May 15 and December 1, 2026, with a stated market settlement date of December 8, 2026 [12][13]. Given the absence of a source-grounded prediction market quote for a specific point forecast, the defensible range remains NOAA’s official forecast of 5–13 tropical cyclones, alongside the observed count [8][3][2][9][10]. With six named storms already recorded by September 16 and continued late-season activity, a total of approximately seven named storms, within a plausible range of 6–8, is a reasonable inference based on current observations and expert guidance [8][1][4][11].
Sources (13)
- 1Hurricane seasons: Spotlight on Hawaii as the North Atlantic remains quietmoodys.com
- 22026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 32026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 4El Niño is supercharging Pacific storms. New hurricane threat for Hawaii and monstrous Polo are further proof | CNNcnn.com
- 5Hurricane season maps tracker: latest forecasts and moreweather.com
- 6Graphical Tropical Weather Outlooknhc.noaa.gov
- 7National Weather Servicemarine.weather.gov
- 82026 Central Pacific Hurricane Season Outlookweather.gov
- 9Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 10Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 11Mid-Season Update: 2026 Tropical Storm & Hurricane Outlook — North Atlantic, Northeast & Central Pacificsea.weathernews.com
- 12Central Pacific named storms, 2026 · ClearMarketclearmarket.fyi
- 13How many Central Pacific named storms will there be this year? - Kalshi Odds | CoinRithmcoinrithm.com
2. Price Chart
Historical Price (Probability)
Outcome probability
Date
3. Significant Price Movements
Notable price changes detected in the chart, along with research into what caused each movement.
Outcome: Above 7
📈 September 28, 2026: 23.0pp spike
Price increased from 56.0% to 79.0%
What happened: The primary driver of the prediction market price movement was the continued observation of active tropical cyclone activity in the Central Pacific basin. On September 28, 2026, weather reporting indicated that Hurricanes Polo and Nolo and Tropical Storm Rachel were active, following NOAA's count of 6 named storms as of September 25, 2026 [1][2]. This persistent late-season activity likely increased market confidence that the final count of named storms would surpass seven, pushing the "Above 7" outcome higher. There is no information provided regarding social media activity, significant news announcements, or market structure factors that would directly explain this specific price movement. Social media was irrelevant to this movement based on the provided data.
📉 September 24, 2026: 11.0pp drop
Price decreased from 58.0% to 47.0%
What happened: The primary driver of the price drop was an official weather update on September 24, 2026. On that date, the National Weather Service's Central Pacific outlook reported Tropical Storm Nolo as active and a separate disturbance with only a 30% seven-day formation chance, indicating no evidence to support a final named storm total above 7 [3]. This update, from a credible source, likely led market participants to reduce their confidence in the "Above 7" outcome. Social media was irrelevant, as no related activity from key figures or viral narratives were identified.
Outcome: Above 6
📈 September 27, 2026: 53.0pp spike
Price increased from 35.0% to 88.0%
What happened: No relevant social media activity from key figures or viral narratives was found in the provided sources around September 27, 2026 [4][5]. Furthermore, no new official press releases or breaking news were identified that would support a significant increase in the predicted number of Central Pacific named storms to "Above 6" by this date. The September 24, 2026, NWS outlook even indicated a low 30% chance of formation within seven days, suggesting limited near-term additions [3]. Therefore, social media was irrelevant, and the available information does not indicate a primary driver for the observed price movement.
📉 September 23, 2026: 40.0pp drop
Price decreased from 68.0% to 28.0%
What happened: The 40.0 percentage point drop on September 23, 2026, for the "Above 6" outcome was primarily driven by official NOAA/NHC outlooks. Outlooks issued on September 6 and September 16, prior to the market movement, reported no expected tropical-cyclone formation in the Central Pacific over the following 7 days [6]. This indicated a near-term lull in activity, likely leading market participants to reassess the probability of accumulating additional named storms by year-end. Based on the provided research, social media activity was irrelevant to this price movement.
Outcome: Above 5
📉 September 19, 2026: 11.0pp drop
Price decreased from 98.0% to 87.0%
What happened: The primary driver for the 11.0 percentage point drop in the "Above 5" market was the Weathernews mid-season tropical storm and hurricane outlook, released on September 10, 2026 [7]. This outlook, combined with the 4 named storms already counted by September 2–3, 2026 [8][9], implied roughly one additional named storm for the season, leading to an estimated total of about 5 named storms [8][7]. This shift in expectation toward approximately 5 named storms decreased the market's confidence in the total exceeding 5. Social media was not a primary driver, as no relevant activity was identified in the provided sources.
Sources (9)
- 12026 Central Pacific Hurricane Seasonprod-west-nhc.woc.noaa.gov
- 2Hurricane season maps tracker: latest forecasts and moreweather.com
- 3National Weather Servicemarine.weather.gov
- 4Worth Another Pour #1 | Season 3: Infrastructure Investing - Aqueducts, Statecraft & the New Powe...youtube.com
- 5Worth Another Pour #3 | Season 3: The Hardest Time in History to Manage Money?youtube.com
- 6https://www.nhc.noaa.gov/text/refresh/HFOTWOCP+shtml/062322_HFOTWOCP.shtmlnhc.noaa.gov
- 7Mid-Season Update: 2026 Tropical Storm & Hurricane Outlook — North Atlantic, Northeast & Central Pacificsea.weathernews.com
- 82026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 92026 Central Pacific Hurricane Seasonnhc.noaa.gov
4. Market Data
Contract Snapshot
This contract resolves to YES if the total number of Central Pacific named storms this year is greater than 7. It resolves to NO if the total number of Central Pacific named storms this year is 7 or fewer. The market's maximum payout date is December 1, 2026. No special settlement conditions are mentioned.
Available Contracts
Market options and current pricing
| Outcome bucket | Yes (price) | No (price) | Last trade probability |
|---|---|---|---|
| Above 2 | $0.99 | $0.03 | 99% |
| Above 4 | $1.00 | $0.02 | 99% |
| Above 3 | $0.99 | $0.06 | 93% |
| Above 5 | $0.99 | $0.07 | 93% |
| Above 6 | $0.87 | $0.19 | 88% |
| Above 7 | $0.78 | $0.41 | 79% |
Market Discussion
As of September 3, 2026, the Central Pacific basin has recorded 4 named storms—Fausto, Lala, Moke, and Lowell—exceeding the 1991–2020 normal of 2 [1][2]. NOAA's 2026 seasonal outlook projects an above-normal season with a 70% probability of 5–13 tropical cyclones, which includes tropical storms [3][4]. Prediction market pricing from September 28 indicates an 82% chance of more than 4 storms and a 30% chance of more than 5, leading to a best estimate of approximately 5 total named storms, a sentiment also reportedly reflected in earlier bullish trader commentary [5][6][1][7].
Sources (7)
- 12026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 22026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 32026 Central Pacific Hurricane Season Outlookweather.gov
- 4Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 5Central Pacific named storms, 2026 · ClearMarketclearmarket.fyi
- 6How many Central Pacific named storms will there be this year? - Kalshi Odds | CoinRithmcoinrithm.com
- 7Hurricane Season Odds: Is Kalshi's Pacific Board Too High? | OddsShopperoddsshopper.com
5. Trust Index
Primary risk· Trade quality
How it adds up
Integrity80% of score84Good
Trade quality20% of score43High Risk
Trust score75Good
Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index
Trust profile
Integrity4 screens run · 5 don't apply · 1 awaiting data
6. How does the 2026 Central Pacific hurricane season's activity compare to historical strong El Niño years like 1997 and 2015?
| Named storms (early Sept 2026) | 4 named storms [1][2] |
|---|---|
| Estimated total named storms (Sept 28) | 5–6 total named storms [3] |
| Chance of very strong El Niño (Oct–Dec) | 81% [4][5][6][7][3] |
The 2026 Central Pacific hurricane season significantly surpasses 1997 activity. As of early September, the 2026 Central Pacific hurricane season exhibits above-normal activity, having recorded 4 named storms, 3 hurricanes, and 2 major hurricanes, with 40.0–43.6 Accumulated Cyclone Energy (ACE) units [1][2]. This named storm count already matches the final total of 4 named storms observed in 1997, and the 2026 ACE is approximately five times greater than 1997's 8.4 ACE [1][2][8]. This heightened activity is influenced by the expected strengthening and persistence of El Niño, which has an 81% chance of developing into a very strong event during October–December, typically leading to reduced wind shear and increased activity in the eastern and central Pacific [4][5][6][7][3].
The 2026 season remains below 2015's record-setting activity. Despite being an above-normal season, the 2026 activity is not comparable to the record-setting 2015 season. As of early September, the 4 named storms recorded in 2026 are significantly fewer than the 14 named storms in 2015, and its 40.0–43.6 ACE is only about one-third of 2015's 127.3 ACE [1][2][9]. Current estimates for the 2026 season, as of September 28, project a total of 5–6 named storms, which differs considerably from a 2015-scale season of 8–14 named storms [3][10][11]. NOAA's 2026 outlook also forecasted a 70% chance of an above-normal season, predicting 5–13 tropical cyclones [12][5].
Sources (12)
- 12026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 22026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 3EL NINO /SOUTHERN OSCILLATION (ENSO)cpc.ncep.noaa.gov
- 4El Nino Strenghtens for 2026/7ssca.org
- 5Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 6Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 7Climate Prediction Center: ENSO Diagnostic Discussioncpc.ncep.noaa.gov
- 81997 Central Pacific Hurricane Seasonnhc.noaa.gov
- 92015 Central Pacific Hurricane Seasonnhc.noaa.gov
- 10How many Central Pacific named storms will there be this year? - Kalshi Odds | CoinRithmcoinrithm.com
- 11How many Central Pacific named storms will there be this year? - Probabilidades na Kalshi | CoinRithmcoinrithm.com
- 122026 Central Pacific Hurricane Season Outlookweather.gov
7. What is the official definition of a 'named storm' per the National Weather Service, and which specific storms in 2026 have met this criteria for the Central Pacific?
| Named Tropical Cyclone Wind Speed | 34 knots (39 mph) or greater [1] |
|---|---|
| Central Pacific Named Storms (2026) | 4 as of September 28, 2026 [2][3] |
| Central Pacific Hurricanes (2026) | 3 hurricanes and 2 major hurricanes as of September 2-3, 2026 [2][3] |
The National Weather Service officially defines a named tropical cyclone. This definition applies to a tropical or subtropical cyclone reaching maximum sustained winds of tropical-storm force, specifically 34 knots (39 mph) or greater, measured as a 1-minute sustained wind average. A formal tropical storm is defined within a wind range of 34–63 knots (39–73 mph). Operationally, any tropical or subtropical cyclone with maximum sustained winds of 34 knots (39 mph) or greater is assigned a name, with the exception of depressions that do not meet this wind threshold [1][4].
The 2026 Central Pacific basin experienced four named storms. As of September 28, 2026, the Central Pacific basin recorded Fausto, Lala, Moke, and Lowell as named storms [2][3]. Among these, Lala (CP1) developed into a major hurricane between August 13 and 28, while Moke (CP2) was classified as a tropical storm from August 20 to 25. Fausto and Lowell originated in the eastern Pacific, with Fausto reaching a maximum of 90 knots and Lowell a maximum of 140 knots before transitioning into the Central Pacific basin [2][3][5]. The seasonal summary for the Central Pacific also reported that among these four named storms, there were 3 hurricanes and 2 major hurricanes as of September 2–3, 2026 [2][3].
Sources (5)
- 1SUMMARY OF REVISIONS: This directive supersedes NWS Instruction 10-604, Tropical Cyclone Names and Definitions, dated January 16, 2025. This is an administrative update made only to change all references of "Gulf of Mexico" to "Gulf of America". No content changes were made with this update, and the effective date was not affected.weather.gov
- 22026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 32026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 42026 Central Pacific Hurricane Season Outlookweather.gov
- 52026 Tropical Cyclone Advisory Archivenhc.noaa.gov
8. What key climatological factors, such as the Madden-Julian Oscillation, could influence late-season storm development before the November 30, 2026, deadline?
| El Niño odds for strong event | greater than 90% (Northern Hemisphere fall/winter 2026–27) [1] |
|---|---|
| Historical El Niño Central Pacific activity | 2–8 tropical depressions and storms (historical) [2] |
| MJO role in late-season forecasting | short-timescale modulator (not a reliable seasonal count predictor) [3][4] |
El Niño is the primary driver of late-season Central Pacific storm development. Late-season storm development in the Central Pacific before November 30, 2026, is mainly influenced by strengthening El Niño conditions, which historically lead to increased tropical cyclone activity in the basin [5][6][1][7]. The Climate Prediction Center (CPC) projects greater than 90% odds of a very strong El Niño event during Northern Hemisphere fall/winter 2026–27 [1][2]. This type of El Niño is typically associated with significantly elevated activity in the Central Pacific, with historical data showing 2–8 tropical depressions and storms [1][2]. Forecast guidance further indicates above-average eastern-Pacific sea surface temperatures (SSTs) and below-normal vertical shear over the central tropical Pacific, conditions that further favor tropical activity [2][5].
The Madden-Julian Oscillation modulates storm development on shorter timescales. While the Madden-Julian Oscillation (MJO) is a key intraseasonal driver that can modulate convective activity and potentially enhance tropical cyclone development, it functions more as a short-timescale modulator rather than a reliable seasonal count predictor for late-season forecasting [5][6][8][3][4]. As of September, the MJO's signal was largely overshadowed by the stronger El Niño signal, and models have faced difficulty in separating its behavior from the El Niño base state, with disagreements on its future propagation [3]. Through November 30, key factors to monitor include the persistence and strength of El Niño, sea surface temperature warmth, vertical-wind-shear evolution, and the MJO phase [2][1][3].
Sources (8)
- 1Climate Prediction Center: ENSO Diagnostic Discussioncpc.ncep.noaa.gov
- 2Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 3Madden-Julian Oscillation: Recent Evolution, Current Status and Predictionscpc.ncep.noaa.gov
- 4MEDIA ADVISORYweather.gov
- 5Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 6Climate Prediction Center - Seasonal Outlookcpc.ncep.noaa.gov
- 7Tropical Cyclone Climatologynhc.noaa.gov
- 8Name Dates Max Wind Est. Minimum Pressurenhc.noaa.gov
9. What datasets from the Central Pacific Hurricane Center (CPHC) provide the most current information on sea surface temperatures and wind shear for the remainder of the 2026 season?
| Pacific SST Analysis Update | Twice weekly [1][2] |
|---|---|
| NCEP RTOFS SST Forecast | Through 72 hours [3] |
| CPC Wind Shear Products | 6-, 12-, and 24-hour intervals [4][5] |
Multiple Central Pacific Hurricane Center datasets provide current sea surface temperatures. The Central Pacific Hurricane Center (CPHC) and National Weather Service (NWS) utilize various data sources to monitor sea surface temperatures (SST). The primary CPHC/NWS Pacific Sea Surface Temperature Analysis, derived from satellites, is updated twice weekly [1][2]. For broader coverage, the NHC/CPHC Reynolds SST Analysis provides a weekly 1-degree global analysis, with graphics typically updated early each week for the preceding period [6]. Additionally, daily short-range SST forecasts extending up to 72 hours are available from the NCEP Global RTOFS [3].
Diverse sources provide current and forecast environmental and storm-specific wind shear. For near-real-time environmental wind information, HFO's Marine Graphical Composite Forecast Map offers selectable wind analyses and forecasts in 12-hour increments [1][7]. A key source for current wind shear is the Climate Prediction Center's (CPC) East Pacific hurricane-potential monitoring suite, which provides 200-850-hPa vertical-wind-shear products at 6-, 12-, and 24-hour intervals [4][5]. Storm-specific data on both wind shear and SST are found in operational sources such as the CPHC/NHC Tropical Weather Outlook and ATCF/SHIPS text products [8]. Notably, 2026 SHIPS files explicitly include forecast SHEAR, shear direction, and SST [9][10][11][12]. Furthermore, CPHC forecast discussions offer expert interpretation of observed and forecasted changes in both shear and SSTs [13][14][15].
Sources (15)
- 1Hawaii Analyses/Forecastsweather.gov
- 2Hawaiian Marine Area of Responsibilityweather.gov
- 3Ocean Model SST Areasocean.weather.gov
- 4Climate Prediction Center - Monitoring East Pacific Hurricane Potentialcpc.ncep.noaa.gov
- 5CPC: 12-Hour Vertical Wind Shear and Infrared Temperaturescpc.ncep.noaa.gov
- 6Reynolds SST Analysis (text)nhc.noaa.gov
- 7Marine Graphical Composite Forecast Map for Central North and South Pacificweather.gov
- 8Graphical Tropical Weather Outlooknhc.noaa.gov
- 9https://ftp.nhc.noaa.gov/atcf/stext/26060912EP0326_ships.txtftp.nhc.noaa.gov
- 10https://ftp.nhc.noaa.gov/atcf/stext/26072700EP0626_ships.txtftp.nhc.noaa.gov
- 11https://ftp.nhc.noaa.gov/atcf/stext/26081006CP9326_ships.txtftp.nhc.noaa.gov
- 12https://ftp.nhc.noaa.gov/atcf/stext/26081412CP0126_ships.txtftp.nhc.noaa.gov
- 13https://www.nhc.noaa.gov/text/refresh/HFOTCDCP3+shtml/222038.shtmlnhc.noaa.gov
- 14https://www.nhc.noaa.gov/text/refresh/HFOTCDCP4+shtml/070849.shtmlnhc.noaa.gov
- 15https://www.nhc.noaa.gov/text/refresh/HFOTCDCP1+shtml/261448.shtmlnhc.noaa.gov
10. How do the updated 2026 season forecasts from NOAA and private firms like Weathernews differ in their projections for the remaining months?
| Weathernews Full Season Forecast | 3–4 Central Pacific formations (full season) [1] |
|---|---|
| NOAA Full Season Forecast | 5–13 tropical cyclones (June 1–November 30) [2][1] |
| Weathernews Remaining Season Forecast | 1–2 Central Pacific formations (September onward) [1] |
Weathernews provided an updated forecast for the 2026 Central Pacific season. Weathernews’ September 10, 2026 mid-season update anticipates 1–2 Central Pacific formations from September onward, primarily concentrated in September and October [1][3]. Their full-season projection for the Central Pacific was 3–4 formations, which is 2–3 above the 1.2-storm normal [1][3]. Notably, the National Hurricane Center's (NHC) latest summary, updated September 2–3, already reports 4 Central Pacific named storms, exceeding the 1991–2020 normal by two [3][4].
NOAA's earlier outlook projected significantly more tropical cyclone activity. In contrast, NOAA’s May 2026 Central Pacific outlook projected 5–13 tropical cyclones for the June 1 to November 30 period, indicating a 70% chance of above-normal activity [2][1]. NOAA's forecast encompasses tropical depressions, tropical storms, and hurricanes, making its scope broader than Weathernews' focus on formations, tropical storms, or hurricanes [2][1].
Both agencies attribute the active season to El Niño conditions. Both agencies link the active Central Pacific outlook to El Niño [1][5][6]. NOAA specifically cited a 96% chance of El Niño during the hurricane season, while Weathernews attributed the above-normal activity to a strong El Niño [1][5][6].
Sources (6)
- 1Mid-Season Update: 2026 Tropical Storm & Hurricane Outlook — North Atlantic, Northeast & Central Pacificsea.weathernews.com
- 22026 Central Pacific Hurricane Season Outlookweather.gov
- 32026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 42026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 5National Weather Servicemarine.weather.gov
- 6Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
11. What Could Change the Odds
Key Catalysts
As of September 2, 2026, NOAA's official Central Pacific summary recorded 4 named storms, 3 hurricanes, 2 major hurricanes, and ACE of 40.0, already exceeding the 1991–2020 named-storm normal by 2 [1][2]. The climatological peak for the Central Pacific season spans July–September [3][4]. With 4 storms confirmed by early September and the peak past, the most defensible current estimate for total named storms by season end is 5, with a plausible range of 5–6 [1][5]. The market's >4 contract represents a clearer bullish position, while >5 remains materially less certain [1][5][6][7].
Bullish catalysts for an above-normal outcome include continued or strengthening El Niño, unusually warm water, reduced shear, local genesis, and east-to-west storm transfers [3][5][8]. NOAA's May 2026 outlook called for an above-normal Central Pacific season, forecasting 5–13 tropical cyclones (named storms plus depressions) with 70% probability [3][4]. El Niño is expected to persist through the season and is associated with increased Central Pacific activity, with El Niño years averaging roughly 2–8 tropical depressions and storms versus 0–4 in La Niña years [3][4][9].
Bearish catalysts include late-season suppression, unfavorable shear/dry air, and the fact that NOAA's 5–13 range includes tropical depressions rather than named storms specifically [3][5][4]. The narrow remaining window after the July–September peak and NHC's September 3 no-formation signal for the following 7 days also present headwinds [3][4][10]. The official Central Pacific season runs June 1–November 30 [3], with the market observation and settlement window from May 15–December 1, 2026 [1][6]. Traders should verify the venue's final settlement terms given a reported December 1 versus December 8 discrepancy [6][7].
Key Dates & Catalysts
- Expiration: December 08, 2026
- Closes: December 01, 2026
Sources (10)
- 12026 Central Pacific Hurricane Seasonnhc.noaa.gov
- 22026 Pacific hurricane seasonen.wikipedia.org
- 32026 Central Pacific Hurricane Season Outlookweather.gov
- 4Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 5Mid-Season Update: 2026 Tropical Storm & Hurricane Outlook — North Atlantic, Northeast & Central Pacificsea.weathernews.com
- 6How many Central Pacific named storms will there be this year? - Kalshi Odds | CoinRithmcoinrithm.com
- 7Central Pacific named storms, 2026 · ClearMarketclearmarket.fyi
- 8Elevated Risk of Tropical Impacts for Hawaii, Southern California and Mexico This Pacific Hurricane Seasonaccuweather.com
- 9Climate Prediction Center - Expert Assessments: East Pacific Hurricane Outlookcpc.ncep.noaa.gov
- 10Graphical Tropical Weather Outlooknhc.noaa.gov
