
Named storm forms before hurricane season?
Prediction market · Polymarket
Overview
The 2026 Atlantic hurricane season will take place over a period lasting from June 1 to November 30. This market will resolve to "Yes" if NOAA names a storm in the Atlantic between December 4, 2025, and May 31, 2026. Otherwise, this market will resolve to "No". The resolution source for this market will be NOAA’s list of named storms during the Atlantic hurricane season (https://www.nhc.noaa.gov/data/tcr/) and/or their data on individual storms. If there is a potential named storm that has not yet been classified by May 31, 2026, 11:59 PM ET, the market may remain open until June 1, 12:00 PM ET to determine if a classification was made prior to midnight.
Ticker
named-storm-forms-before-hurricane-season-197
Volume
330.2K
24h volume
482
1w volume
3.0K
Open interest
3.0K
Liquidity
2.1K
Liquidity CLOB
2.1K
Start
Dec 4, 2025
End
May 31, 2026
Status
Active
Access
Restricted
Created
Dec 4, 2025
Event ID
97429
Slug
named-storm-forms-before-hurricane-season-197
Markets
1
Raw event data
{
"id": "97429",
"ticker": "named-storm-forms-before-hurricane-season-197",
"slug": "named-storm-forms-before-hurricane-season-197",
"title": "Named storm forms before hurricane season?",
"description": "The 2026 Atlantic hurricane season will take place over a period lasting from June 1 to November 30.\n\nThis market will resolve to \"Yes\" if NOAA names a storm in the Atlantic between December 4, 2025, and May 31, 2026. Otherwise, this market will resolve to \"No\".\n\nThe resolution source for this market will be NOAA’s list of named storms during the Atlantic hurricane season (https://www.nhc.noaa.gov/data/tcr/) and/or their data on individual storms.\n\nIf there is a potential named storm that has not yet been classified by May 31, 2026, 11:59 PM ET, the market may remain open until June 1, 12:00 PM ET to determine if a classification was made prior to midnight.",
"resolutionSource": "",
"startDate": "2025-12-04T20:35:15.954088Z",
"creationDate": "2025-12-04T20:35:15.954084Z",
"endDate": "2026-05-31T00:00:00Z",
"image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/named-storm-before-2025-atlantic-hurricane-season-L5ZsQ43lEwsW.jpg",
"icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/named-storm-before-2025-atlantic-hurricane-season-L5ZsQ43lEwsW.jpg",
"active": true,
"closed": false,
"archived": false,
"new": false,
"featured": false,
"restricted": true,
"liquidity": 2147.0739,
"volume": 330245.1205240001,
"openInterest": 2990.183822,
"createdAt": "2025-12-04T20:09:36.473124Z",
"updatedAt": "2026-04-07T01:54:39.424001Z",
"competitive": 0.9750390015600624,
"volume24hr": 481.951024,
"volume1wk": 2984.975096999999,
"volume1mo": 42771.25503199997,
"volume1yr": 330245.1205240002,
"enableOrderBook": true,
"liquidityClob": 2147.0739,
"commentCount": 0,
"markets": [
{
"id": "823568",
"question": "Named storm forms before hurricane season?",
"conditionId": "0x3d9534e655c68bd1811bdb721704d7434c6ce214a69043e9e2c4a13c25db33f5",
"slug": "named-storm-forms-before-hurricane-season-197",
"resolutionSource": "",
"endDate": "2026-05-31T00:00:00Z",
"liquidity": "2009.4739",
"startDate": "2025-12-04T20:27:35.815438Z",
"image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/named-storm-before-2025-atlantic-hurricane-season-L5ZsQ43lEwsW.jpg",
"icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/named-storm-before-2025-atlantic-hurricane-season-L5ZsQ43lEwsW.jpg",
"description": "The 2026 Atlantic hurricane season will take place over a period lasting from June 1 to November 30.\n\nThis market will resolve to \"Yes\" if NOAA names a storm in the Atlantic between December 4, 2025, and May 31, 2026. Otherwise, this market will resolve to \"No\".\n\nThe resolution source for this market will be NOAA’s list of named storms during the Atlantic hurricane season (https://www.nhc.noaa.gov/data/tcr/) and/or their data on individual storms.\n\nIf there is a potential named storm that has not yet been classified by May 31, 2026, 11:59 PM ET, the market may remain open until June 1, 12:00 PM ET to determine if a classification was made prior to midnight.",
"outcomes": "[\"Yes\", \"No\"]",
"outcomePrices": "[\"0.34\", \"0.66\"]",
"volume": "330245.1205240001",
"active": true,
"closed": false,
"marketMakerAddress": "",
"createdAt": "2025-12-04T20:09:37.301356Z",
"updatedAt": "2026-04-07T01:54:19.156963Z",
"new": false,
"featured": false,
"submitted_by": "0x91430CaD2d3975766499717fA0D66A78D814E5c5",
"archived": false,
"resolvedBy": "0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7",
"restricted": true,
"groupItemTitle": "",
"groupItemThreshold": "0",
"questionID": "0x69c5cd9aac6105183b943b50c1ad01708c229667b6f33aaf1cee51689c18b469",
"enableOrderBook": true,
"orderPriceMinTickSize": 0.01,
"orderMinSize": 5,
"volumeNum": 330245.1205240001,
"liquidityNum": 2009.4739,
"endDateIso": "2026-05-31",
"startDateIso": "2025-12-04",
"hasReviewedDates": true,
"volume24hr": 481.951024,
"volume1wk": 2984.975096999999,
"volume1mo": 42771.25503199997,
"volume1yr": 330245.1205240002,
"clobTokenIds": "[\"20600308170198957123987979219658132184209448612977764212098316654034298575953\", \"95242366937399208415473110958333281927436869963466438334270716517261639405981\"]",
"umaBond": "500",
"umaReward": "5",
"volume24hrClob": 481.951024,
"volume1wkClob": 2984.975096999999,
"volume1moClob": 42771.25503199997,
"volume1yrClob": 330245.1205240002,
"volumeClob": 330245.1205240001,
"liquidityClob": 2009.4739,
"customLiveness": 0,
"acceptingOrders": true,
"negRisk": false,
"negRiskRequestID": "",
"ready": false,
"funded": false,
"acceptingOrdersTimestamp": "2025-12-04T20:27:13Z",
"cyom": false,
"competitive": 0.9750390015600624,
"pagerDutyNotificationEnabled": false,
"approved": true,
"rewardsMinSize": 20,
"rewardsMaxSpread": 3.5,
"spread": 0.04,
"oneDayPriceChange": -0.02,
"oneHourPriceChange": -0.015,
"oneWeekPriceChange": 0.07,
"oneMonthPriceChange": -0.095,
"lastTradePrice": 0.39,
"bestBid": 0.32,
"bestAsk": 0.36,
"automaticallyActive": true,
"clearBookOnStart": true,
"manualActivation": false,
"negRiskOther": false,
"umaResolutionStatuses": "[]",
"pendingDeployment": false,
"deploying": false,
"deployingTimestamp": "2025-12-04T20:12:15.472002Z",
"rfqEnabled": false,
"holdingRewardsEnabled": false,
"feesEnabled": false,
"requiresTranslation": false,
"feeType": null
}
],
"series": [
{
"id": "10737",
"ticker": "named-storm-forms-before-hurricane-season",
"slug": "named-storm-forms-before-hurricane-season",
"title": "Named storm forms before hurricane season",
"seriesType": "single",
"recurrence": "annual",
"image": "",
"icon": "",
"active": true,
"closed": false,
"archived": false,
"createdAt": "2025-12-04T20:09:45.750657Z",
"updatedAt": "2026-04-07T01:54:47.856744Z",
"volume24hr": 481.951024,
"volume": 330245.1205240001,
"liquidity": 2147.0739,
"commentCount": 0,
"requiresTranslation": false
}
],
"tags": [
{
"id": "101998",
"label": "Natural Disaster",
"slug": "natural-disaster",
"createdAt": "2025-03-26T17:29:21.543627Z",
"updatedAt": "2026-03-09T22:35:26.763712Z",
"requiresTranslation": false
},
{
"id": "74",
"label": "Science",
"slug": "science",
"forceShow": false,
"publishedAt": "2023-11-02 21:16:20.623+00",
"updatedBy": 13,
"createdAt": "2023-11-02T21:16:20.826Z",
"updatedAt": "2026-03-09T22:33:38.571503Z",
"forceHide": true,
"requiresTranslation": false
},
{
"id": "102023",
"label": "hurricane",
"slug": "hurricane",
"createdAt": "2025-04-07T20:00:43.649061Z",
"updatedAt": "2026-03-09T22:34:46.731516Z",
"requiresTranslation": false
},
{
"id": "87",
"label": "climate",
"slug": "climate",
"publishedAt": "2023-11-02 21:17:38.407+00",
"createdAt": "2023-11-02T21:17:38.424Z",
"updatedAt": "2026-03-09T22:28:03.35922Z",
"requiresTranslation": false
},
{
"id": "84",
"label": "Weather",
"slug": "weather",
"forceShow": false,
"publishedAt": "2023-11-02 21:17:34.81+00",
"createdAt": "2023-11-02T21:17:34.814Z",
"updatedAt": "2026-03-09T22:33:58.564774Z",
"requiresTranslation": false
}
],
"cyom": false,
"showAllOutcomes": true,
"showMarketImages": true,
"enableNegRisk": false,
"automaticallyActive": true,
"seriesSlug": "named-storm-forms-before-hurricane-season",
"negRiskAugmented": false,
"cumulativeMarkets": false,
"pendingDeployment": false,
"deploying": false,
"requiresTranslation": false,
"eventMetadata": {
"context_description": "Trader consensus on Polymarket assigns a 64.5% implied probability to no named storm—defined as sustained winds of 39 mph or higher—forming in the Atlantic basin before the official June 1 hurricane season start, driven by the National Hurricane Center's (NHC) lack of any monitored tropical disturbances as of early April. Routine Tropical Weather Outlooks remain paused until May 15, underscoring suppressed near-term development amid persistent dry air and moderate wind shear overriding warming sea surface temperatures. While pre-season activity has occurred in recent years (e.g., Tropical Storm Arthur in May 2020), historical rarity and current quiescent conditions support the \"No\" lead. Key shifts could arise from NOAA model ensembles after May 15, tracking potential low-pressure areas in the Caribbean or western Atlantic.",
"context_requires_regen": false,
"context_updated_at": "2026-04-07T01:19:14.280Z"
}
}- Named storm forms before hurricane season?Vol 330.2KLiq 2.0KEnd May 31, 2026OpenOrder book