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Flood in Alameda County, California
Flood December 22, 2025 · Alameda County, California
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Four to six inches of water were reported on eastbound Interstate 580 at Harrison Street.
The wider storm
A series of storm systems impacted the Bay Area and Central Coast from December 19 to 25th, impacting Christmas holiday travel across the region. The most impactful systems arrived on Christmas Eve and Christmas Day. Two tornado warnings were issued for the coastal regions of San Mateo and Santa Cruz counties based off radar indicated rotation. San Francisco International Airport reported delays of at least 300 flights during the storms, and over 400,000 customers across the Bay Area and 30,000 in the Central Coast lost power.
Began near Piedmont (37.8190, -122.2535).
Source: NOAA Storm Events Database, event 1299464. Narratives are written by the National Weather Service forecast office that issued the report.
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