Flood in Contra Costa County, California

Flood November 23, 2018 · Contra Costa County, California

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

What the National Weather Service wrote

Roadway flooding reported at I680 N and Olympic Blvd on ramp, 8-10 inches of water in number 2 lane.

The wider storm

A couple of storm systems moved through the region just before and on the Thanksgiving Holiday. These systems brought heavy rainfall and gusty winds resulting in minor debris flows and roadway flooding.

Began near Walnut Creek (37.8932, -122.0674).

Source: NOAA Storm Events Database, event 788423. Narratives are written by the National Weather Service forecast office that issued the report.

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