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 portions of the central and southern High Plains. Read More >

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Last Map Update: Tue, Apr 21, 2026 at 2:40:37 pm PDT

Watches, Warnings & Advisories

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National Weather Service San Joaquin Valley, CA

National Weather Service Los Angeles, CA

Tornado Warning

Severe Weather Statement

Special Marine Warning

Winter Storm Warning

Winter Weather Advisory

Flood Advisory

Small Craft Advisory

Wind Advisory

Marine Weather Statement

Thunderstorm Chances Today

Isolated to scattered thunderstorms are possible across the Bay Area and Central Coast today with lightning, locally heavy rainfall, and small hail being the primary threats. Localized flooding may occur within heavier showers and/or thunderstorms. When thunder roars, go indoors! See a flash, dash inside!