National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

San Joaquin Valley, CA

Weather Forecast Office

NWS Forecast Office Hanford, CA

Weather.gov > San Joaquin Valley, CA

Winter Storm Warning
Flood Watch
Saturday Thunderstorm Chances
A winter storm warning has been posted for the Sierra Nevada from 1 AM PST on Saturday, January 3rd to 10 AM PST on Monday, January 5th, 2026. Heavy snow is expected. Total snow accumulation between 6 and 18 inches between 6,000 and 7,000 feet. 3 to 5 feet of accumulated snowfall above 8,000 feet. Winds gusting as high as 45 mph during the event.
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A Flood Watch has been issued for the Sierra Foothills valid 10 PM this evening through 4 PM Monday due to anticipated excessive rainfall. There is an 80-90% probability for greater than 2 inches over the next 72 hours for the northern foothills, but 40-50% for the southern foothills. Areas near burn scars prone to flash flooding and debris flow will be at risk.
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Multiple waves of a system will track through central California over the weekend, with one of these waves arriving Saturday afternoon. During this time, daytime heating will create enough instability for thunderstorm development; the greatest chances will be for the northern San Joaquin Valley and nearby Sierra Foothills.
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