As millions of Americans hunker down for the winter storm, 19 states and Washington, D.C., have declared states of emergency.

Track the winter storm as it's forecasted to bring heavy snow and extremely cold weather to the U.S., reaching millions from ...

The major storm is set to hit starting on Jan. 23 and will stretch into the weekend, spreading snow and ice from the southern ...

That snowflake icon on your smartphone app might be quick and handy — it just might not be as accurate as a human when the ...

ECMWF has been developing the Artificial Intelligence Forecasting System (AIFS) to run side by side with its traditional physics-based Integrated Forecasting System (IFS) to advance numerical weather ...