Every member of a 30-run climate model ensemble at a major U.S. government laboratory now projects sea-surface temperatures in the central Pacific will exceed 2 degrees Celsius above normal by fall or ...

There is a moment each year when the Arctic stops reflecting light and starts holding it. It does not announce itself. Satellites notice first. Then, researchers begin to compare notes. By late summer ...

The most recent daily Weather World (updated each weekday after 6 p.m.). From the Outreach Studios in the Department of Meteorology and Atmospheric Science at Penn State, this is the most recent daily ...

Join us as we discuss weather prediction and get a behind the scenes perspective on Weather World. For more than 40 years Weather World has been providing an in-depth forecast for Pennsylvania weather ...