meteorology

Update to Google’s AI weather model improves forecast accuracy

Google has updated its machine-learning weather model, WeatherNext 3, by adding limited physical inputs—land/ocean classification and surface elevation—to improve surface temperature and dew point estimates. In tests reported in a white paper, the company says the changes yield measurable accuracy gains versus the previous WeatherNext 2 and the ECMWF AI model, and the new system is now used across Google services including Search, Gemini and Maps.