Short Answer

Hurricane Lowell will be Category 1 or above; official reports confirm the storm already reached Category 5 status on September 2, 2026, priced at 99.0%.

1. Market Behavior & Drivers

The market's primary move was a 66.0 percentage point spike on August 27, repricing the probability of Lowell reaching hurricane strength from 6.0% to 72.0%. This initial jump was driven by meteorological forecasts identifying Lowell as a developing tropical cyclone with high potential for intensification. The market began pricing in the storm's formation and strengthening ahead of official category designations.
Subsequent volatility, including multi-day price drops on August 29-30 and a 35.0 point spike on August 31, does not coincide with any specific public announcements detailed in the provided reports. The contract ultimately stabilized near 99.0% as the National Hurricane Center confirmed Lowell had become an active Category 4 major hurricane by September 3, resolving the earlier uncertainty.
  • Official CPHC reports confirmed Hurricane Lowell reached Category 5 on September 2.
  • This Category 5 status met the specified hurricane category thresholds.

Who Wins and Why

Outcome Market Model Why
Category 1 or above 99.0% 100.0% Hurricane Lowell confirmed Category 5 status, exceeding Category 1 thresholds.
Category 5 or above 97.0% 100.0% Official reports confirmed Hurricane Lowell reached Category 5 intensity on September 2, 2026.
Category 2 or above 99.0% 100.0% Hurricane Lowell confirmed Category 5 status, exceeding Category 2 thresholds.
Category 4 or above 99.0% 100.0% Hurricane Lowell confirmed Category 5 status, exceeding Category 4 thresholds.
Category 3 or above 99.0% 100.0% Hurricane Lowell confirmed Category 5 status, exceeding Category 3 thresholds.

Current Context

Hurricane Lowell maintains Category 4 status with strong sustained winds. As of September 3, 2026, Hurricane Lowell is an active Category 4 major hurricane on the Saffir-Simpson Hurricane Wind Scale [1][2][3][4]. It is located at approximately 13.3°N, 156.3°W, about 450 miles south of Hilo, Hawaii [1][2][5][4]. The storm moves west at about 10 mph (17 km/h), with maximum sustained winds of 145 mph (230 km/h) and a minimum central pressure of 941 mb [1][2][5][4].
Forecasts indicate Lowell will remain a major hurricane with track uncertainty. Lowell is forecast to remain a major hurricane for the next several days [4][5]. Its long-range track is uncertain, with forecasters noting a potential turn northward or north-northeastward over the weekend due to a developing upper-level trough [5][6][4]. While there are currently no coastal watches or warnings in effect for Hawaii, residents should monitor the storm [2][5][7]. Swells from Lowell are causing life-threatening surf and rip current conditions in the Hawaiian Islands [2][5][7][4].
Historic El Niño conditions drive simultaneous Pacific hurricane occurrences. The simultaneous occurrence of hurricanes Lowell, Karina, and Marie in the Pacific stems from historically strong El Niño conditions [8][9][6]. These conditions have generated favorable factors such as warm sea surface temperatures and low vertical wind shear [8][9][6].
Sources (9)
  1. 1https://www.nhc.noaa.gov/text/refresh/HFOTCMCP4+shtml/030857.shtmlnhc.noaa.gov
  2. 2Hurricane Lowell Public Advisorynhc.noaa.gov
  3. 3National Hurricane Center - NOAAnhc.noaa.gov
  4. 4Hurricane Lowell Public Advisorynhc.noaa.gov
  5. 5Hurricane Lowell Forecast Discussionnhc.noaa.gov
  6. 6Rare train of Pacific cyclones fueled by historic El Nino - The Japan Timesjapantimes.co.jp
  7. 7City continues to closely monitor Hurricane Lowell | Office of the Mayorhonolulu.gov
  8. 8Rare trio of Pacific hurricanes fueled by historic El Niñophys.org
  9. 9Hurricanes Lowell, Karina and Marie Spaghetti Models as Three Storms Gather - Newsweeknewsweek.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: Category 5 or above

📈 September 02, 2026: 74.0pp spike

Price increased from 23.0% to 97.0%

What happened: The primary driver of the 74.0 percentage point price spike was the official confirmation that Hurricane Lowell intensified to Category 5 on September 2, 2026 [1][2][3][4]. A public advisory issued at 11:00 AM HST on that date noted this critical intensification [2]. Reports of the storm reaching Category 5 subsequently served as a significant catalyst for heightened news coverage and social media activity [1][3][5][6]. While social media amplified this information, it was a contributing accelerant, with the official meteorological announcement being the primary driver rather than social media activity itself.

Outcome: Category 4 or above

📈 September 01, 2026: 15.0pp spike

Price increased from 53.0% to 68.0%

What happened: The primary driver of the 15.0 percentage point spike in the "Hurricane Lowell category?" prediction market on September 01, 2026, cannot be conclusively identified from the available data. Research indicates no specific news or social media activity correlates with this particular price movement, suggesting it may be a misinterpretation or unrelated metric [7]. While Hurricane Lowell intensified to Category 5 on September 2, 2026, and was classified as Category 4 by early September 3, 2026 [1][8][9], direct evidence of these developments driving a September 1st social media-led spike is absent. Therefore, social media activity appears to be irrelevant as a primary driver for this specific price spike.

Outcome: Category 1 or above

📈 August 31, 2026: 35.0pp spike

Price increased from 58.0% to 93.0%

What happened: Based on the provided web research, there is no information available regarding social media activity, traditional news, or specific meteorological announcements that occurred on August 31, 2026, to explain the 35.0 percentage point spike in the "Hurricane Lowell category?" prediction market. The available sources describe Hurricane Lowell's intensity as Category 5 on September 2, 2026 [10][11][12], and Category 4 on September 3, 2026 [13][14][15], which are dates after the market movement. Therefore, the primary driver for the August 31, 2026, price movement cannot be identified from the given data, and social media's role cannot be assessed.

📉 August 30, 2026: 23.0pp drop

Price decreased from 81.0% to 58.0%

What happened: No social media activity related to Hurricane Lowell's intensity forecasts on August 30, 2026, is present in the provided sources, rendering it irrelevant to the market movement. On that date, Lowell was identified as a developing tropical cyclone, with forecasts anticipating its evolution into a hurricane [16][17], which does not align with a 23.0 percentage point drop in the likelihood of reaching Category 1 or above. Therefore, based on the available information, the primary driver for this market price movement cannot be definitively identified, as the provided news would logically suggest the opposite trend. Social media was irrelevant.

📉 August 29, 2026: 14.0pp drop

Price decreased from 86.0% to 72.0%

What happened: The provided web research contains no information regarding a 14.0 percentage point drop in the "Hurricane Lowell category?" prediction market on August 29, 2026, for the outcome "Category 1 or above" [13][5][12]. Furthermore, the research explicitly states there is no available information about any specific catalyst event—including social media activity or traditional news—that would match the user's description for Hurricane Lowell [13][5][12]. While Hurricane Lowell formed on August 27, 2026, and later reached Category 5 intensity on September 2, 2026, the available data does not explain the described market movement on August 29 [1][12]. Therefore, based on the provided information, social media activity is irrelevant, as no related content or impact is mentioned.
Sources (17)
  1. 1Hurricane Lowell (2026) - Wikipediaen.wikipedia.org
  2. 2Hurricane Lowell Public Advisorynhc.noaa.gov
  3. 3First Alert Forecast: Hurricane Lowell is a category 5 storm and getting strongerhawaiinewsnow.com
  4. 4Category 5 Hurricane Lowell track shifts toward Hawaiisfchronicle.com
  5. 5Hurricane Lowell Public Advisorynhc.noaa.gov
  6. 6Hurricane Lowell weakens slightly to Category 4 as track forecast edges closer to Hawaii | First Alert Weather | Hawaii News Nowhawaiinewsnow.com
  7. 7https://www.nhc.noaa.gov/text/refresh/HFOTCMCP4+shtml/030857.shtmlnhc.noaa.gov
  8. 8Rare Cat 5 storm near Hawaii: What Lowell means for Kauai | Top Stories | kitv.comkitv.com
  9. 9Hurricane Lowell Strengthens to Category 5 as Multiple Pacific...internewscast.com
  10. 10Hurricane LOWELL - NHC - NOAAnhc.noaa.gov
  11. 11Hurricane Lowell Public Advisory (text)nhc.noaa.gov
  12. 12Hurricane Lowell Public Advisorynhc.noaa.gov
  13. 13Hurricane Lowell Public Advisorynhc.noaa.gov
  14. 14Hurricane Lowell Public Advisorynhc.noaa.gov
  15. 15Hurricane Lowell Public Advisory - NHCnhc.noaa.gov
  16. 16First Alert Forecast: Two tropical cyclones strengthen as they head...hawaiinewsnow.com
  17. 17Bryan Norcross: Small disturbance and remnants of Dolly in the Gulf | Fox Weatherfoxweather.com

4. Market Data

Contract Snapshot

This Kalshi market allows trading on whether Hurricane Lowell will reach a specific category or higher. A "YES" resolution for a contract like "Category X or above" occurs if Hurricane Lowell reaches category X or higher. Conversely, a "NO" resolution occurs if the hurricane does not reach the specified category X or higher. The maximum payout date for these contracts is December 1, 2026.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Category 1 or above $1.00 $0.01 99%
Category 2 or above $1.00 $0.01 99%
Category 3 or above $1.00 $0.01 99%
Category 4 or above $1.00 $0.01 99%
Category 5 or above $1.00 $0.02 97%

Market Discussion

As of September 3, 2026, Hurricane Lowell is classified as a Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale, with maximum sustained winds estimated at 145 mph (230 km/h) and a minimum central pressure of 941 mb [1][2][3][4][5][6][7][8]. The storm had previously reached Category 5 intensity on September 2, 2026, before weakening [9][10][11][12]. Meteorological discussions and social media commentary highlight high uncertainty in Lowell's long-range track, particularly regarding the timing and location of an expected turn to the north that could impact Hawaii [13][14][15][16][17].

Sources (17)
  1. 1https://www.nhc.noaa.gov/text/refresh/HFOTCMCP4+shtml/010230.shtmlnhc.noaa.gov
  2. 2Hurricane Lowell weakens slightly to Category 4 as track forecast edges closer to Hawaii | First Alert Weather | Hawaii News Nowhawaiinewsnow.com
  3. 3Hurricane Lowell Public Advisorynhc.noaa.gov
  4. 4https://www.nhc.noaa.gov/text/refresh/HFOTCMCP4+shtml/030857.shtmlnhc.noaa.gov
  5. 5Hurricane Lowell Public Advisorynhc.noaa.gov
  6. 6Hurricane Lowell Public Advisorynhc.noaa.gov
  7. 7NHC Active Tropical Cyclones - National Hurricane Center - NOAAnhc.noaa.gov
  8. 8NHC - NOAAnhc.noaa.gov
  9. 9Hurricane Lowell Public Advisorynhc.noaa.gov
  10. 10Hurricane Lowell Public Advisorynhc.noaa.gov
  11. 11Hurricane LOWELL - NHC - NOAAnhc.noaa.gov
  12. 12Hurricane Lowell Public Advisory (text)nhc.noaa.gov
  13. 13Hurricane Lowell Forecast Discussionnhc.noaa.gov
  14. 14First Alert Forecast: Lowell is south of the islands as a powerful hurricane; when will it turnhawaiinewsnow.com
  15. 15First Alert Forecast: Lowell intensifies and expected to initially track south before it turns righthawaiinewsnow.com
  16. 16Jen Robbins - September 2, 2026: #Lowell continues to be a... | Facebookfacebook.com
  17. 17LOWELL RAPIDLY INTENSIFIES INTO A MAJOR HURRICANE...facebook.com

5. What specific changes in sea surface temperature and vertical wind shear are forecast along Hurricane Lowell's potential paths by the GFS and ECMWF models?

Oceanic Heat ContentHigh for at least the next three days [1][2]
Vertical Wind Shear (Initial)Low, less than 10 knots, for at least the next three days [1][2]
Vertical Wind Shear (Later)Increasing towards the end of the 5-day forecast period [1][2]
Lowell is expected to maintain strength in favorable conditions initially. Hurricane Lowell is forecast to sustain its current intensity for at least the next three days. This is attributed to an environment characterized by high oceanic heat content and low vertical wind shear, specifically measured at less than 10 knots [1][2]. Such conditions are generally considered conducive to hurricane sustenance.
Weakening is forecast due to increasing wind shear later on. A notable shift in environmental factors is anticipated towards the conclusion of the 5-day forecast period. Hurricane Lowell is predicted to encounter increasing vertical wind shear, a change linked to the presence of a mid- to upper-level trough [1][2]. This increase in wind shear is expected to lead to more pronounced weakening of the hurricane.
Sources (2)
  1. 1Hurricane Lowell Forecast Discussionnhc.noaa.gov
  2. 2Hurricane Lowell Forecast Discussion (text)nhc.noaa.gov

6. What specific factors does the Central Pacific Hurricane Center (CPHC) cite in its official forecasts for or against Hurricane Lowell reaching Category 5 status?

Expected Intensity FluctuationsExpected while remaining a major hurricane [1]
Cause of Eventual WeakeningInteraction with upper-level atmospheric features [2][3]
Average Intensity Forecast ErrorNear 20 knots each day [1]
The Central Pacific Hurricane Center (CPHC) forecasts indicate a mixed intensity outlook for Hurricane Lowell. The CPHC has not explicitly detailed specific factors that would prevent Hurricane Lowell from reaching Category 5 status, though it anticipates intensity fluctuations [1]. Forecasts suggest Hurricane Lowell will remain a major hurricane for several days [1]. The CPHC's outlook highlights a mixed environment, noting both conditions favorable for intensity and other factors contributing to decay and uncertainty [2][3][1].
Forecast models predict eventual weakening due to atmospheric interactions. Specifically, models from the CPHC forecast an eventual weakening of Hurricane Lowell, attributed to its interaction with upper-level atmospheric features [2][3]. Intensity guidance points to a "slow decay" throughout the forecast period and suggests that eyewall replacement cycles could lead to fluctuations in the storm's intensity [2][3].
Despite favorable conditions, significant long-range forecast uncertainty persists. The CPHC's forecast acknowledges a generally favorable environment characterized by high oceanic heat content and low shear [2][3]. However, the center also emphasizes significant uncertainty in the long-range track and intensity [1]. Historically, intensity forecast errors have averaged close to 20 knots daily [1].
Sources (3)
  1. 1Hurricane Lowell Forecast Discussionnhc.noaa.gov
  2. 2Hurricane Lowell Forecast Advisorynhc.noaa.gov
  3. 3Central Pacific Hurricane Tracker - Stormdomstormdom.com

7. How does Hurricane Lowell's rate of intensification compare to that of Hurricane Patricia (2015), which also formed during a strong El Niño event in the Pacific?

Patricia's 24-hour wind increaseApproximately 105 knots (about 120 mph) [1][2][3][4]
Patricia's Peak Wind Speed185 kt (215 mph) [1][3][4]
Lowell's Peak Sustained Winds160 mph (140 kt) [5][6]
Hurricane Patricia exhibited an extraordinary and historic rate of intensification. Its winds increased by approximately 105 knots (about 120 mph) in a 24-hour period, escalating from 75 knots to 180 knots [1][2][3][4]. Patricia ultimately reached a peak intensity of 185 knots (215 mph) [1][3][4]. This intensification rate of 105 knots in 24 hours is recognized as one of the most extreme recorded in the satellite era [6][1].
Hurricane Lowell also rapidly intensified but less intensely than Patricia. Lowell transformed from a tropical storm with 70 mph winds on September 1, 2026, to a Category 5 hurricane with 160 mph winds by September 3, 2026 [7]. It briefly achieved Category 5 status on September 2, 2026, with maximum sustained winds of 160 mph (140 knots) [8][9][10][5][6]. Despite Lowell's significant strengthening, Hurricane Patricia's intensification rate of 105 knots in 24 hours remains specifically noted as one of the most extreme observed in the satellite era [6][1], indicating a higher rate of intensification compared to Lowell.
Sources (10)
  1. 1Hurricane Patricianhc.noaa.gov
  2. 2Dissecting the rapid intensification of Hurricane Patricia - Physics Todayphysicstoday.aip.org
  3. 3Hurricane PATRICIA (text)nhc.noaa.gov
  4. 4Ep202015.discus.012.shtmlnhc.noaa.gov
  5. 5Hurricane LOWELL - NHC - NOAAnhc.noaa.gov
  6. 6Hurricane Lowell Forecast Discussionnhc.noaa.gov
  7. 73 Pacific hurricanes: Lowell may threaten Hawaii - KCRAkcra.com
  8. 8Tropical Storm Lowell Public Advisory - National Hurricane Centernhc.noaa.gov
  9. 9Hurricane Lowell Public Advisorynhc.noaa.gov
  10. 10Marie strengthens into hurricane as powerful Category 4 Lowell...foxweather.com

8. What are the latest satellite-based intensity estimates for Hurricane Lowell using the Dvorak technique, and what are the potential margins of error for this data?

Satellite Dvorak Range (Sept 3, 2026)102-125 knots [1]
Peak Intensity (Sept 2, 2026)160 mph (Category 5) [2][3]
Current Intensity (Sept 3, 2026)145 mph (Category 4) [4][5]
Satellite imagery provides various Dvorak intensity estimates for Hurricane Lowell. As of September 3, 2026, satellite-based Dvorak intensity estimates for Hurricane Lowell showed a range between 102 and 125 knots [1]. The Honolulu Forecast Office's latest subjective Dvorak intensity estimate for September 2, 2026, was T5.5 (constrained), with a Data-T of 6.0, indicating an intensity of 115 knots [6][7]. Historically, intensity forecast errors for similar systems average near 20 knots per day [8][1].
Hurricane Lowell recently underwent rapid intensification, reaching Category 5 status. This rapid intensification occurred on September 2, 2026, ultimately leading to a peak at Category 5 status. At its peak, the hurricane had estimated maximum sustained winds of 160 mph and a central pressure of 927 mb [2][3]. As of September 3, 2026, Hurricane Lowell is classified as a strong Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Its maximum sustained winds are approximately 145 mph, which corresponds to 125 knots [4][5][8][9].
Sources (9)
  1. 1https://www.nhc.noaa.gov/text/refresh/HFOTCDCP4+shtml/030244.shtmlnhc.noaa.gov
  2. 2Hawaii Issues Warning as Category 4 Hurricane Lowell Nears: Live Tracker Maps - Newsweeknewsweek.com
  3. 3Lowell rapidly intensifies to Category 5; forecast to remain major...mauinow.com
  4. 4Hurricane Lowell Forecast Discussionnhc.noaa.gov
  5. 5Marie strengthens into hurricane as powerful Category 4 Lowell...foxweather.com
  6. 6Hurricane Lowell Forecast Discussionnhc.noaa.gov
  7. 7Hurricane Lowell Forecast Discussionnhc.noaa.gov
  8. 8https://www.nhc.noaa.gov/text/refresh/HFOTCMCP4+shtml/030857.shtmlnhc.noaa.gov
  9. 9Hurricane Lowell Public Advisorynhc.noaa.gov

9. What is the consensus peak intensity forecast for Hurricane Lowell from major meteorological models, including the HWRF and HMON, as of early September 2026?

Current Intensity (Sept 3, 2026)Category 4, 125 knots (145 mph) [1][2][3][4]
Forecasted Intensity (72 hours)Maintain major hurricane intensity (Category 3 or higher), 125 knots [1][2]
Highest Intensity ReachedCategory 5 on September 2, 2026 [2][5][6]
Major models' specific peak intensity forecasts for Hurricane Lowell are not consistently available. As of early September 2026, specific peak intensity forecasts from major meteorological models like HWRF and HMON were not consistently published. However, the Central Pacific Hurricane Center (CPHC) has provided the consensus intensity forecast for Hurricane Lowell [2][1].
Hurricane Lowell is currently a Category 4 with 125-knot sustained winds. On September 3, 2026, the hurricane was classified as a Category 4 on the Saffir-Simpson Hurricane Wind Scale, with maximum sustained winds estimated at 125 knots (145 mph) [1][2][3][4]. The CPHC's forecast indicates that Lowell is expected to maintain major hurricane intensity (Category 3 or higher) for several days, with maximum sustained winds predicted to remain at 125 knots for at least 72 hours [1][2]. A gradual weakening trend is anticipated after this period [1][2].
Lowell previously intensified to a Category 5 hurricane on September 2, 2026. Prior to its current status, Hurricane Lowell had intensified to a Category 5 hurricane on September 2, 2026, before subsequently weakening to its present Category 4 classification [2][5][6].
Sources (6)
  1. 1https://www.nhc.noaa.gov/text/refresh/HFOTCMCP4+shtml/030857.shtmlnhc.noaa.gov
  2. 2Hurricane Lowell Forecast Discussionnhc.noaa.gov
  3. 3Hurricane Lowell Public Advisorynhc.noaa.gov
  4. 4Hurricane Lowell Public Advisorynhc.noaa.gov
  5. 5Lowell rapidly intensifies to Category 5; forecast to remain major...mauinow.com
  6. 6Hurricane Lowell Public Advisorynhc.noaa.gov

10. What Could Change the Odds

Key Catalysts

As of September 3, 2026, Hurricane Lowell is a Category 4 hurricane, with maximum sustained winds of 145 mph (230 km/h) and a pressure of 941 mb [1][2][3]. The storm is expected to remain a major hurricane for several days [4]. It had reached Category 5 intensity on September 2, 2026, with maximum sustained winds of 160 mph [5][6]. Hurricane Lowell is tracking west, well south of the Hawaiian Islands, though forecasts indicate a sharp turn to the north or north-northeast late in the weekend [1][2][7]. The long-term track is uncertain, with impacts on the Hawaiian Islands yet to be determined [4].
Hurricane prediction markets are primarily driven by official National Hurricane Center (NHC) data and specialized forecasting models [8][9][10][11]. Market prices react in real-time to shifts in projected paths, intensity forecasts, and model outputs [8][9][10][11]. Key catalysts include NHC track and intensity forecast updates, issued every six hours [8][9][10][11]. Sea surface temperature anomalies, wind shear analysis, and official watches or warnings also drive market movement [8][9][10][11].

Key Dates & Catalysts

  • Expiration: December 02, 2026
  • Closes: December 02, 2026
Sources (11)
  1. 1Hurricane Lowell Public Advisory - NHCnhc.noaa.gov
  2. 2Hurricane Lowell Public Advisorynhc.noaa.gov
  3. 3Hurricane Lowell (2026) - Wikipediaen.wikipedia.org
  4. 4Hurricane Lowell Forecast Discussionnhc.noaa.gov
  5. 5Hurricane Lowell Public Advisorynhc.noaa.gov
  6. 6Hurricane Lowell Public Advisorynhc.noaa.gov
  7. 7Category 4 Hurricane Lowell gains strength on path south of Hawaii | Honolulu Star-Advertiserstaradvertiser.com
  8. 8Hurricanes Prediction Markets & Live Odds 2026 | Polymarketpolymarket.com
  9. 9Where Will a Hurricane Hit the US in 2026? Prediction Market Odds | Lines.comlines.com
  10. 10Category 4 US Landfall Before 2027: Market at 33%lines.com
  11. 11Live Hurricane Wind Gust Prediction Markets at ForecastExinteractivebrokers.com

12. Related News

+74.0pp
Last updated: September 3, 2026, 12:31 UTC

Hurricane Lowell's Category 5 Confirmation Drives Peak Intensity Odds to 97%

An official advisory from the National Weather Service on Wednesday confirmed Hurricane Lowell had rapidly intensified into a Category 5 storm, causing a sharp repricing in a market forecasting its pe...

13. Historical Resolutions

Historical Resolutions: 20 markets in this series

Outcomes: 7 resolved YES, 13 resolved NO

Recent resolutions:

  • KXHURCAT-26GENEVIEVE-T5: YES (Jul 29, 2026)
  • KXHURCAT-26GENEVIEVE-T4: YES (Jul 29, 2026)
  • KXHURCAT-26GENEVIEVE-T3: YES (Jul 29, 2026)
  • KXHURCAT-26GENEVIEVE-T2: YES (Jul 29, 2026)
  • KXHURCAT-26GENEVIEVE-T1: YES (Jul 29, 2026)