Ranked dead last, or perhaps not mentioned at all, would probably be the only state that sits partly within the Arctic Circle ...

While this polar vortex event will not affect Northern California, its presence in the central and eastern U.S. will have an impact on the weather pattern for the West Coast. The polar vortex is a ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar ...

Global warming changed the behavior of the jet stream, and a new pattern is now clear: sapping moisture from the West Coast ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

2 People Hospitalized, More Injured in Rare California Tornado A polar vortex is “a large area of low pressure and cold air” that can expand during the winter months, “sending cold air ...

A series of blasts of polar vortex air from the north will bring ... entire eastern part of the country all the way to parts of California and Oregon and as far south as Arizona, Texas and Alabama.

Temperatures are dropping in Texas on New Year's Eve ahead of next week's polar vortex, which will bring snowfall to much of ...