Forecasters have said parts of the U.S. can expect frigid temperatures in December. A first round has arrived, and more cold ...

Such events distort the polar vortex, which causes Arctic air to descend into the U.S. and causes temperatures to plummet.

Several inches of snow are expected to fall on Dec. 2 in the Northeast and Mid-Atlantic, with freezing rain and iced-over ...

Frigid Arctic air is pushing south into the United States, and fortunately, it doesn't look like freezing temperatures will ...

More than 18 million people across the West and Midwest are under winter weather alerts in the United States. This comes as several storms bring heavy snow, wind chills and the threat of flooding, ...

The blast of frigid temperatures follows days of snowy, icy conditions across much of the country. It's bringing the coldest ...

Snow, high winds and below-average temperatures are sweeping from the Rockies to the Midwest, while an atmospheric river threatens flooding in the Pacific Northwest.

Although the storm will move out of the region quickly, its impacts could cause widespread disruptions to daily life.

A blast of Arctic air gripped much of the central and eastern portions of the U.S. on Friday in sub-freezing temperatures ...

Widespread showers and storms are expected to move through Central Florida on Sunday afternoon. The First Warning Weather team is calling for Impact Weather from 2-8 p.m. with a 70% coverage of rain.

Traveling to your Thanksgiving destination may be smoother than heading home, with a cross-country storm potentially bringing ...

A late-November cold snap sent temperatures in Minneapolis so low that, for a short time, it was actually colder than Mars, ...