National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

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Last Map Update: Wed, Dec 24, 2025 at 4:22:14 am CST

A Dense Fog Advisory is in effect From 3 AM CST /2 AM MST/ to 10 AM CST /9 AM MST/ Wednesday for the Permian Basin and Western Low Rolling Plains. If out and about, drive with caution Wednesday morning!
More warm temperatures are in store today and tonight. Another round of dense fog is expected across the Permian Basin, southeast New Mexico, and Stockton Plateau tonight into tomorrow morning.

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