Noesion Radarnoesion.ai
Research2026-08-06

Google DeepMind, with co-authors from Google Research, NOAA's National Hurricane Center, Colorado State University's CIRA and the UK Met Office, published WeatherNext Cyclones (WN-C) in Nature on 6 August 2026. WN-C is an AI weather model that produces ensemble forecasts of tropical cyclone track, intensity and wind radii worldwide out to 15 days, trained on global analysis data plus a historical tropical cyclone database. Evaluated on cyclones from 2023-2025, it delivered an average of a day or more of lead-time advantage over leading operational models, an improvement the authors compare to a decade of conventional operational progress. The model used inputs orders of magnitude coarser than regional models, and its scalability supports ensembles of up to 1,000 members versus the conventional 50. Adding WN-C to a weighted-average consensus ensemble improved that ensemble's skill; a lighter WN-C Mini variant was also evaluated.

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