Don't put away that winter jacket just yet. The polar vortex is expected to be impacted by a sudden warmup of the stratosphere, which will bring freezing temperatures to the Northeast this weekend and ...

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 ...

Dangerously cold temperatures combined with wind gusts up to 60 mph are expected to cause life-threatening conditions across parts of the Midwest, Mid-Atlantic and Northeast to close out the week, ...

Add Yahoo as a preferred source to see more of our stories on Google. Could early February's blast of cold in the northeastern United States be one of the last appearances of our wintertime foe, the ...

There is a major weather pattern change underway across the U.S. As we get into next week, the storm track looks really interesting. Major upper-air pattern changes are quite normal. Sometimes we have ...

Wind chills are below zero degrees throughout the First State as a polar vortex grips the region. Wilmington, Dover and Lewes are all reading wind chills below zero degrees as bitter cold winds from ...

Add Yahoo as a preferred source to see more of our stories on Google. Dangerously cold temperatures combined with wind gusts up to 60 mph are expected to cause life-threatening conditions across parts ...

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A weakened polar vortex is allowing frigid air to spill into portions of the U.S. this week, forecasters say. The National Weather Service Weather Prediction Center (WPC) warned in a Thursday update ...