Weather forecasters rely on models to help them make decisions that can have life-or-death consequences, so any advantage is welcome. Artificial intelligence holds promise to deliver more accurate forecasts quickly, and tech companies including Google, Nvidia and Huawei have produced A.I.-based forecasting models. weather model from Microsoft, and it stands out for several reasons, according to a report published Wednesday in the journal Nature. It’s already in use at one of Europe’s largest weather centers, where it’s running alongside other traditional and A.I.-based models. The Aurora model can make accurate 10-day forecasts at smaller scales than many other models, the paper reports.