What is Google DeepMind WeatherNext 2?

WeatherNext 2 is an AI weather forecasting model from Google DeepMind that predicts hundreds of possible future weather outcomes from a single starting condition, capturing not just an average forecast but the range of plausible scenarios including rare, severe events. It is trained to forecast how individual weather variables interact as a connected system rather than independently, and can generate a full global forecast in about a minute on a single processor instead of the hours required by conventional supercomputer-based methods.