Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

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Last Map Update: Sun, Jan 4, 2026 at 8:36:27 am PST

Watches, Warnings & Advisories

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National Weather Service San Joaquin Valley, CA

National Weather Service Los Angeles, CA

Winter Storm Warning

Gale Warning

Winter Weather Advisory

Flood Advisory

Coastal Flood Advisory

High Surf Advisory

Small Craft Advisory

Hazardous Seas Warning

Beach Hazards Statement

Flood Watch

Marine Weather Statement

Coastal Flood Advisory

Beach Hazards Statement Sunday

A Coastal Flood Advisory is in effect through 2 PM Sunday for the Pacific Coast and the San Francisco and Monterey Bays. Up to 2.1 feet of inundation is possible in low-lying areas near shorelines and tidal waterways. Flooding of lots, parks, and roads is forecast with road closures expected. Coastal infrastructure will be inundated. Do not drive around barricades or through water of unknown depth!

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Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

NWS Forecast Office San Francisco, CA