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Flash Flood in Ventura County, California
Flash Flood August 20, 2023 · Ventura County, California
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Heavy rain generated flash flooding near the community of Newbury Park. Significant flooding was reported on Highway 101 near Ventu Park Road.
The wider storm
Tropical Storm Hilary, the first tropical storm to impact Southern California in 84 years, brought heavy rain and significant flooding to Ventura and Los Angeles counties. Rainfall totals were very impressive with mountain areas receiving 3 to 9 inches of rainfall while coastal and valley areas received 2.50 to 5 inches of rainfall. Rainfall rates were also very impressive with rates around 1 inch in less than an hour reported at times. With such heavy rainfall, numerous reports of flash flooding as well as mud and debris flows were received. As for winds, most areas reported gusts in the 30 to 50 MPH with local gusts in excess of 80 MPH in some mountains locations in Los Angeles county.
Began near Newbury Park (34.1837, -118.9097).
Source: NOAA Storm Events Database, event 1136168. Narratives are written by the National Weather Service forecast office that issued the report.
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