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

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

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

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

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

The bitter weather is expected to bring nighttime lows as cold as minus 31 deg C over the weekend. Read more at ...

Winter is making its presence known in New York City, as the polar vortex is bringing brutally cold temperatures to the ...

the polar vortex can sometimes get out of balance. When it wobbles or weakens, chunks of that super cold air can spill out and slide south, making places like the United States suddenly feel bone ...

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

Despite a cold start to the day, most of the U.S. will experience seasonably mild temperatures on Thursday. However, ...

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