Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

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Last Map Update: Fri, Dec 26, 2025 at 7:42:08 am PST

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Winter Storm Warning

Flood Advisory

High Surf Advisory

Small Craft Advisory

Wind Advisory

Flood Watch

Turn Around, Don't Drown

Flood Watch Continues

Excessive Rainfall Outlook

Thunderstorm Outlook

Winter Storm Warning

Each year, more deaths occur due to flooding than from any other thunderstorm related hazard. People underestimate the force and power of water. Many of the deaths occur in cars swept downstream. Many of these drownings are preventable. Never drive around the barriers blocking a flooded road.

Through Friday - All Counties from Merced and Mariposa Counties to Kern County. This includes the San Joaquin Valley and coastal ranges, as well as the Kern County mountains and desert. Probability of one inch of rainfall per 24 hours through Friday at least 50 percent each day in the Central Valley, but as much as near 100 percent in the Sierra Nevada foothills and Sierra Nevada below 7,000 feet. If flooding occurs, turn around, don't drown.

Central California is currently under a Marginal Risk (At least 5%) of experiencing rainfall that will exceed flash flood guidance. The area near the south of Kern County sits near the Slight Risk (At least 15%) and has a higher risk of flooding this Friday. Saturday shows all of Central California with less than a 5% Risk of excessive rainfall.

Central California is under a general risk for thunderstorms this Friday. There is a less than a 2% risk for Tornados in Central California. These thunderstorm have the potential of producing locally heavy showers to increase the threat of flooding today.

A Winter Storm Warning remains in effect for the Sierra Nevada above 7,000 feet from Yosemite to the Lake Isabella area through Friday evening (Dec 26th).