Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Water, salt, and heat all get mixed within eddies with important climate consequences, but the boundary of an eddy is hard to ...

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 left a mess in states from New Mexico to New England. Hundreds of thousands ...