Update to Google’s AI weather model improves forecast accuracy
Like traditional weather models, it benefits from an expanded set of inputs.
TL;DR
- Google's WeatherNext 3 AI model now ingests satellite weather data, reducing forecast lag time.
- The model's spatial resolution is increased, and it operates at hourly forecast frequencies.
- WeatherNext 3 shows improved accuracy over WeatherNext 2 and the ECMWF AI model, especially for surface temperature.
- The model adds physical information to calculate surface temperature and dew point, improving prediction accuracy.
- Some anomalies were observed, including initial worse performance for certain variables before improving and hexagonal patterns in precipitation maps.
- WeatherNext 3 is now the primary source for weather forecasts in Google Search, Gemini, and Maps.