Add Yahoo as a preferred source to see more of our stories on Google. This winter’s harsh run is intensifying, with some of the coldest air so far this season plunging into New Hampshire this weekend ...

Add Yahoo as a preferred source to see more of our stories on Google. Record cold temperatures are once again expected to hit a swath of the country this weekend—even plunging Florida into its coldest ...

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

The U.S. is bracing for extreme weather events, including record heat in the Southwest, severe cold from the polar vortex, ...

The United States is experiencing a range of extreme weather events, including record heat in the Southwest, a polar vortex ...

Welcome to 'false spring,' New Jersey! A polar vortex split could bring bitter cold back to NJ, but how cold will it get and ...

The polar vortex is splitting — an exceedingly rare phenomenon for this time of year that will be an unusual driver of warmer temperatures, as the calendar flips to March and meteorological spring.

Ohio and the Great Lakes are bracing for another cold shot later this month — down to single digits in places. When to expect ...