National Weather Service graphic titled “Minor Flood Threat Sat–Mon” shows forecast rainfall totals and flood risk across Northwest California, with Mendocino County highlighted. The map indicates widespread rainfall of about 3 to 5 inches in Mendocino County from Saturday through Monday, with locally higher amounts possible. The graphic warns of rapid rises in rivers, streams and creeks, minor flooding in poor-drainage and urban areas, and the potential for rock and mudslides along roadways.
A National Weather Service graphic shows a minor flood threat from Saturday through Monday, with Mendocino County forecast to receive 3 to 5 inches of rain during the weekend storm. Forecasters warned that heavy rainfall could cause rapid rises in rivers and creeks, minor flooding in poor-drainage areas, and rock or mudslides along roadways. (National Weather Service Eureka via Bay City News)

MENDOCINO CO., 12/19/25 – The National Weather Service issued a flood watch on Friday for all of Mendocino County, warning that excessive rainfall from an incoming atmospheric river could lead to flooding, landslides and hazardous travel beginning Saturday afternoon. 

The flood watch is in effect from Saturday afternoon through Monday morning, according to the weather service. 

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Sarah Stierch covers breaking news and more for The Mendocino Voice. Reach her at sarah@mendovoice.com.