{"rewrite":{"id":"r_3265355b61db077e5820702d","clusterId":"c_324c9ac0b7c1f023655eed9e","slug":"google-deepmind-unveils-weathernext-cyclones-with-added-forecast-lead-time","model":"deepseek-v4-flash:free","headline":"Google DeepMind Unveils WeatherNext Cyclones With Added Forecast Lead Time","summary":"Google DeepMind announced WeatherNext Cyclones, an AI weather model developed with the US National Hurricane Center, CIRA, the UK Met Office, and other agencies. It achieves state-of-the-art accuracy in tracking tropical cyclones, offering forecast information at three days out that matches the accuracy of two-day forecasts from previous models. The models WeatherNext 2 and WeatherNext Cyclones are being open-sourced.","whyItMatters":"The model's three-day forecast accuracy matches what older models delivered at two days, a gain the source equates to a decade of meteorological progress, and the open-sourcing of both models hands that capability to the research community.","webCardHtml":"\u003cp\u003eThe new model builds on WeatherNext 2, released in November 2025, which enabled hourly high-resolution forecasts. WeatherNext Cyclones focuses specifically on the track, intensity, and wind structure of tropical cyclones, the systems known as typhoons, hurricanes, or cyclones depending on the ocean basin.\u003c/p\u003e\u003cp\u003eDuring the 2025 hurricane season, the system predicted the strengthening of Hurricane Melissa and its landfall in Jamaica, giving the National Hurricane Center time to issue early warnings. The collaboration continues into 2026, running 1,000 scenarios per storm to support forecaster decisions.\u003c/p\u003e","blueskyPost":"WeatherNext Cyclones shifts the forecast horizon: three-day accuracy now matches the old two-day standard. That extra day is the difference between evacuation orders and preparation time.","twitterPost":"WeatherNext Cyclones gives forecasters one more day of accurate cyclone lead time, which is the window that decides evacuations.","threadsPost":"WeatherNext Cyclones doesn't just improve accuracy; it extends the lead time. Three-day forecasts now match the old two-day standard. For cyclone-prone regions, that extra day is the difference between evacuation and preparation.","newsletterBlurb":"Google DeepMind announced WeatherNext Cyclones, an AI model for tropical cyclone forecasting that adds about a day of lead time over existing models. Developed with the NHC, CIRA, and the UK Met Office, it helped predict Hurricane Melissa's 2025 landfall. Both WeatherNext 2 and Cyclones are now open source.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260807-google-deepmind-weathernext-cyclones/\",\"title\":\"Google DeepMindの気象予測モデル「WeatherNext Cyclones」はこれまでより1日分多く正確なサイクロン予報が可能\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5400,"outputTokens":556,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1786397144,"createdAt":"2026-08-10T21:18:46.000Z","publishedAt":"2026-08-10T21:21:44.000Z","updatedAt":"2026-08-10T21:18:46.000Z"},"cluster":{"id":"c_324c9ac0b7c1f023655eed9e","canonicalTitle":"Google DeepMindの気象予測モデル「WeatherNext Cyclones」はこれまでより1日分多く正確なサイクロン予報が可能","representativeArticleId":"a_c2c00b114cbd60898dbf8d22","sourceCount":1,"writtenSourceCount":1,"writeAttempts":1,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-07T03:45:00.000Z","lastSeenAt":"2026-08-07T03:45:00.000Z","updatedAt":"2026-08-10T21:21:45.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260807-google-deepmind-weathernext-cyclones/","title":"Google DeepMindの気象予測モデル「WeatherNext Cyclones」はこれまでより1日分多く正確なサイクロン予報が可能"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":null}