Persistent arctic air is forecast to break numerous daily records and produce dangerously cold sub-zero wind chills across the Central and Southern Plains, Lower Mississippi Valley, and the Southeast U.S. today. An atmospheric river will bring heavy rain and mountain snow to the Pacific Northwest states and northern Rockies today through at least Tuesday. Read More >
Last Map Update: Fri, Feb 21, 2025 at 9:40:25 am PST
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