SAN FRANCISCO (KRON) — A polar air mass is forecast to blow into the San Francisco Bay Area on Thursday and possibly dust local mountain peaks with snow. Tuesday’s sunny and warm weather will ...

More dangerously cold air is on the way for much of the U.S. Will Tennessee be impacted? Here's what to know.

Add Yahoo as a preferred source to see more of our stories on Google. Milwaukee is in for a frigid and snowy December, thanks to several polar vortex systems that will sweep through the United States ...

The weirdly warm November weather will soon come to a crashing end, thanks to an air mass moving from the Laptev Sea north of Russia — over 4,000 miles away from the U.S. East Coast, where its journey ...

A “polar air mass” could last for days in the Charlotte area, mountains and Upstate South Carolina, National Weather Service meteorologists said on Friday. A “hard freeze” from a “polar air mass” ...