Triple-digit heat persists in Southwest A heat dome will form next week and park over the Southwest, baking temperatures to ...

Nearly every part of the United States is getting walloped by wild weather or just about to be. Days of downpours have begun in Hawaii. The Southwest will soon bake with day after day of record ...

The United States faces an array of extreme weather events, including a polar vortex, heat dome, and significant snowfall, impacting various regions simultaneously.

WASHINGTON — Warm Arctic waters and cold continental land will combine to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather later ...

Hello, world? Can I come out of hibernation yet? Folks in the central and eastern United States who've endured weeks of bitter cold and snow are wondering: Is winter over? Will the polar vortex come ...

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex is splitting — an exceedingly rare phenomenon for this time of year that will be an unusual driver of warmer ...

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.

The next step upward to spring weather is showing in the extended forecast. This week and much of next week look and feel more like winter than spring. The second week in March should have the driver ...