Counties in multiple states including ones in Arkansas are under an Extreme Cold Warning through Thursday as a winter storm moves through the area. But, what exactly is an Extreme Cold Warning?

The National Weather Service issues extreme cold warnings when "dangerous" temperatures or wind chill levels are expected.

An arctic blast will strike Austin from Tuesday night until at least Friday, the National Weather Service's Central Texas office said.

An updated extreme cold warning was issued by the National Weather Service on Wednesday at 8:52 p.m. valid for Thursday between midnight and noon. The warning is for Atchison, Doniphan, Leavenworth, ...

As part of the National Weather Service’s “Hazard Simplification Program,” Excessive Heat Watches and Excessive Heat Warnings ...

Winter storm warnings and winter weather advisories are in effect across 23 states as a major storm system threatens to bring ...

The National Weather Service issued an updated extreme cold warning at 2:26 p.m. on Wednesday in effect until Thursday at noon. The warning is for Kearney Area and Grand Island Area as well as ...

An updated extreme cold warning was issued by the National Weather Service on Wednesday at 2:16 a.m. valid from 9 p.m. until Thursday 9 a.m. The warning is for Columbus Area, Fremont Area and ...

On Tuesday at 11:45 a.m. an updated extreme cold warning was issued by the National Weather Service in effect until noon. The warning is for Mason City and Waterloo-Cedar Falls as well as Emmet ...

On Monday at 2:30 p.m. the National Weather Service issued an updated extreme cold warning valid from 9 p.m. until Tuesday noon. The warning is for Columbus Area, Fremont Area and Omaha Area as ...