Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

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Last Map Update: Tue, Apr 21, 2026 at 8:40:18 pm PDT

Watches, Warnings & Advisories

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National Weather Service San Francisco Bay Area, CA

Winter Storm Warning

Winter Weather Advisory

Flood Advisory

Small Craft Advisory

Weekly Outlook

A slow moving weather system off the West Coast is increasing the likelihood for rain throughout the beginning of the week. Cooler temperatures are also expected through Wednesday. A drying and slight warming trend is forecasted for Thursday and Friday.