WeatherNext: AI model achieves breakthrough in forecasting cyclones

Nature paper: WeatherNext hits state-of-the-art cyclone track, intensity, and wind-structure accuracy — 3-day forecasts match prior models' 2-day skill, an extra day of warning (~a decade of meteorological progress). It helped the NHC forecast Hurricane Melissa's landfall in Jamaica in 2025; WeatherNext 2 and Cyclones are now open-sourced.