Following recent snow days, the persistent cold is expected to intensify ... high pressure system over the arctic air mass up over northern Canada is able to move south over the United States ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

A rare frigid storm is charging through Texas and the northern Gulf Coast, blanketing New Orleans and Houston with snow, closing highways and grounding nearly all flights ...

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still ...

Heavy rain is expected to spread eastward on Thursday, followed by winds that forecasters believe could be dangerous and destructive.

The Arctic surge gripping Michigan is expected to slide eastward, allowing temperatures to climb into the weekend — and snow to move ... cold did it get Tuesday night in Michigan? Here are ...

An extreme cold warning is in effect for the ridges of the Laurel Highlands, where the coldest wind chills are expected: As low as -30° degrees through early Wednesday. The rest of the area is under a ...

A rare frigid storm is charging through Texas and the northern Gulf Coast, blanketing New Orleans and Houston with snow, ...

A blast of arctic ... temperatures will move eastward, reaching major cities like Philadelphia, where daytime highs will ...