Google DeepMind's WeatherNext 3 Swaps Physics Models For Satellites

The model refreshes forecasts hourly instead of every six hours, at five times sharper resolution than its predecessor, WeatherNext 2.
- Day-ahead precipitation forecasts improve up to 50% over WeatherNext 2, Google says.
- Surface resolution reaches 5 kilometers, replacing WeatherNext 2's 6-hour refresh cycle.
- 100-meter wind predictions target solar and wind farms for renewable-energy planning.
Why it matters: The 50 percent accuracy gain is Google's own measurement of Google's own model, not an independent test.