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 on Highway 99 southbound from heavy rain.

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 Fairoaks (37.9662, -121.2639).

Source: NOAA Storm Events Database, event 1331054. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.