Flood in San Joaquin County, California

Flood April 21, 2026 · San Joaquin County, California

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

California Highway Patrol reported roadway flooding in the westbound lanes of Cherokee Road and Sanguinetti Lane.

The wider storm

Another Spring storm brought mountain snow, rain and thunderstorms to the area from April 20th through April 22nd. There were numerous reports of roadway flooding due to heavy rain and thunderstorms. There was also a report of a rock slide on State Route 16 from the heavy rain with rocks all over the road. Moderate mountain snow brought periods of chain controls over the mountain highways.

Began near Stockton (37.9750, -121.2685).

Source: NOAA Storm Events Database, event 1331061. Narratives are written by the National Weather Service forecast office that issued the report.

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