As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the surface. The term vortex is used to ...

Folks across the central, eastern and southern U.S. are about to experience potentially record warmth over the next week or so.

Don’t pack the winter coat away in storage just yet. Forecasters say a potential polar vortex split could send colder air into New York City before the end of March, bringing one last reminder of ...

Winter weather is back in the East, but the extended forecast has some good news for milder weather later in March.

Add Yahoo as a preferred source to see more of our stories on Google. Texas and the South and East will see extremely cold weather and a powerful winter storm with the possibility of snow and ice due ...

The Great Lakes and Northeast are bracing for another cold shot later this month — down to single digits in places. How cold ...

The United States is getting slammed by a stretch of weather extremes, from flooding rain to record heat and late-season snow ...

A polar vortex split high in the stratosphere is expected to send frigid Arctic air toward Michigan and the Great Lakes. The event could bring colder-than-normal temperatures and late frosts to the ...

ORLANDO, Fla. – When you hear meteorologists talk about a polar vortex breakdown, it might sound like something that only affects the Arctic or northern states. In reality, these events can have ...

A major snow and ice storm is expected to affect tens of millions of people from Texas to New England over the weekend. The storm is very large, and it could be particularly dangerous because a frigid ...