Myriad winter weather alerts and warnings remained in place across the U.S. on Tuesday as multiple states battled storms.

Alerts for cold weather are in effect for nearly ... fall to zero — and sometimes well below zero, according to Weather Service forecasts — will cover much of the northern half of the Lower ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...

Met Office weather forecasts have concurred that a host of "wintry hazards" are possible after the coming weekend, when high ...

Yellow cold health alerts have been issued for large swathes of the UK over the coming days after the Met Office forecast ...

As of Tuesday, myriad cold weather and winter storm alerts remain in place. The two most severe were extreme cold warnings, which are issued when temperatures reach life-threatening levels ...