National Weather Service United States Department of Commerce

Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

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Last Map Update: Tue, Jan 21, 2025 at 10:06:18 pm MST

Across Utah and southwest Wyoming, temperatures will stay on the cold side Wednesday into Thursday. However, less cold air will move in by Friday, resulting in high temperatures averaging 5°F above seasonal normals.

 

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