The NWS has issued the warnings as a powerful polar vortex continues to make temperatures plunge nationwide this week.

The cold snap will continue for most into tomorrow.

The National Weather Service warned of "dangerous travel conditions, scattered power outages, and downed branches." ...

Communities across a large part of Illinois will likely experience heavy snow, ice and blizzard conditions as a major winter storm pummels this Midwest this weekend.

Illinois State Police have activated an emergency snow plan as a winter storm hammers the central and southern portions of ...

The National Weather Service issued a Winter Storm Warning Wednesday for Northeast Arkansas and Southeast Missouri.

A Winter Storm Warning has been issued for this weekend across the northern Black Hills. This warning does not include Rapid ...

The warmer air will continue increasing Monday, and this may change things over to plain rain, especially for the metro and points south. Some snow and a wintry mix will continue well north of I-64.

The Winter Storm Warning is in effect now across Middle Tennessee and Southern Kentucky. It started at midnight Friday and will last until 6 a.m. Saturday for Lincoln, Moore and Franklin Counties. The ...

Winter storm warnings and weather advisories are in place across 15 states due to expected snowfall, freezing rain and ...

Sophia PargasSophia Pargas is a news associate for NBC News ... Coast because of yesterday's winter storm, as well as in Southern California, where red flag warnings are in effect for powerful ...