The National Weather Service had multiple states under winter weather advisories or winter storm warnings early on Friday.

A polar vortex is expected to bring snow and ice to 26 states and D.C., threatening travel with blizzard conditions and record-low temperatures.

Another massive winter storm is forecast to pummel the southern and eastern U.S., with impacts from Texas to the Carolinas.

The Montana and Wyoming mountains will see the heaviest snow, with up to 2 feet expected until 6 p.m. local time on Sunday.

Several states across the U.S. are under alert as the new storm system approaches. Texas, Oklahoma, Arkansas, Louisiana, and Missouri have severe weather alerts in effect through Friday, January 10. Meanwhile, Tennessee, northern Alabama, and parts of Indiana and Kentucky will remain under warnings through Saturday.

Forecasters have an idea of how much snow could fall between Sunday night and Monday, but while plowable, uncertainty looms as to exactly how much.

Fire danger remains high in parts of Los Angeles that have been ablaze for days, but calmer weather may finally be on the horizon.

Oil prices rose more than 1% on Thursday as cold weather gripped parts of the United States and Europe, boosting winter fuel demand.

A powerful polar vortex is sweeping across the United States, bringing dangerous blizzard conditions and heavy snowfall to multiple regions. The National Weather Service (NWS) has issued winter ...