People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...

Kansas City Airport closes amid a severe winter storm and polar vortex, causing major travel disruptions across the Midwest.

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...

An area stretching from Texas to Tennessee is bracing for the expected arrival of freezing rain and snow, as some other parts ...

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend ...

The plunging polar vortex is bringing subfreezing temperatures to some of the southernmost points of the U.S. A forming storm ...

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend ...

The polar vortex of ultra-cold air usually stays penned up around the North Pole, spinning like a top. But sometimes it escapes or stretches down to the United States, Europe or Asia — and that’s when ...

"Whatever amount of snow we get, one thing's for certain: it's going to be incredibly cold," Mayor Eric Adams said Sunday.