Arctic air surging south could glaze Colorado roads with ice in time for the evening commute Friday as Denver braces for a weekend of bitter, sub-zero cold. National Weather Service meteorologist ...

A polar vortex will plunge Colorado into bitter, sub-zero cold this weekend and could bring up to 10 inches of snow in some parts of the Denver metro, National Weather Service meteorologists say.

According to the Houston Police Department, a man on the flight was acting erratically and began punching the seat in front ...

The Denver metro area could see 3 to 6 inches of snow with 4 to 10 inches in and near the foothills. Snow will extend into ...

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

Cities like Chicago, Pittsburgh, Cleveland, Denver and Detroit are expected ... temperature only reaching 26 degrees Monday. The polar vortex is a large area of low pressure and cold air that ...

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

One of the key players in these dramatic shifts is something called the polar vortex. The polar vortex is a massive area of cold air located high in the atmosphere, typically spinning over the ...