A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

I’ve been convinced that we are about to experience a very serious and dangerous weather episode,” Houston Mayor John ...

An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia ...

Major winter storm brings heavy snow to East Coast as Arctic blast puts millions under warnings from Plains to Maine ...

Arctic air grips the central and eastern U.S., bringing record-breaking cold, dangerous wind chills, and historic snowfall.

An arctic blast will send wind chills plummeting below zero through Monday, Tuesday, and Wednesday. Unusually cold air ...

A series of cold fronts the last few weeks has kept Florida downright chilly, as another winter storm starts to take aim this ...

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

Bitter Arctic air plunged more than half the United States into a deep freeze yesterday, including New Orleans, where the ...

A series of disturbances in the atmosphere is sending the polar vortex south (again) next week with a burst of even colder ...