A cooler day is expected as clouds continue to hang over the region. A polar jet stream from the north has dropped into the continental United States, bringing cooler air and chances for snow showers ...

Every state but Hawaii, California and Florida is likely to get a taste of wind chills of 20 degrees or colder.

Brits could face several inches of snow in the coming days according to shocking new weather maps, with forecasters also ...

As the jet stream swung south ... This puts more moisture into the atmosphere. "When a cold front or polar air mass moves into a region like Florida, this excess moisture can translate into ...

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

Scientists say a warming planet may have been responsible for a winter storm that dropped 10 inches of snow on Northwest ...

Maps show what to expect as the cold front arrives. The polar vortex is a large area ... During the winter months and when the jet stream allows, this cold air can drop farther down into lower ...

It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

Many times during winter in the Northern Hemisphere, the polar vortex will expand, sending cold air southward with the jet stream ... temperatures along the Front Range. Then a high pressure ...

SALT LAKE CITY — Cities across the U.S. are bracing for cold temperatures as a polar ... front, you'll have bits and pieces — waves of energy — that follow within the jet stream that can ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...