Powerful Pacific Storm to Continue Impacting Northern California; Heavy Snow in the Appalachians and Portions of the Northeast

A strong atmospheric river will continue to impact northern California with heavy rain and life-threatening flooding through Friday. Unsettled weather is expected across much of the Northeast and Great Lakes over the next few days, including the likelihood of heavy snow in the central Appalachians and higher elevations of northeastern Pennsylvania and southern New York. Read More >

Click a location below for detailed forecast.

Last Map Update: Thu, Nov 21, 2024 at 11:46:08 pm 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

Gale Warning

Winter Weather Advisory

High Surf Advisory

Small Craft Advisory

Wind Advisory

Precipitation from Friday 4am through Saturday 4am

Highway 120 Cross Section Fri-Tue

Precipitation Forecast for next 3 Days

Precipitation Forecast for Next 5 Days

75% Probability or more of the lesser value, 25% Probability or More of the greater value. For example at Mariposa, there is a 75% Probability of 1.41” or more, and a 25% Probability of 2.36” or more.

The first strong storm system of the season is expected to impact the Sierra Nevada from Friday afternoon through early next week. Here is a cross section of Highway 120 through the Sierra Nevada with ranges for total snow accumulation from Friday morning through Tuesday morning. Snow levels are expected to be around 7,000 feet while the storm system moves through the area.

A range of between a quarter to one inch of rain in the San Joaquin Valley this weekend with 1 to 3 inches in the Sierra Nevada below 8,000 feet, including the foothills. Around 0.05 to 0.25 of an inch of rain is forecast for portions of Kern County with near 0.01 of an inch across the Mojave Desert.

A range of between 1-2 inches of rain in the San Joaquin Valley this weekend with 3-6 inches in the Sierra Nevada below 8,000 feet, including the foothills. Around 0.5-1 inch of rain is forecast for portions of Kern County with up to 0.25 of an inch across the Mojave Desert.