May 9, 2023
An upper trough moved across Central California on May 9. This system provided for enough instability for scattered thunderstorms to break out along the West Side Hills and the Sierra Nevada during the afternoon. One thunderstorm produced heavy rainfall near Coalinga which resulted in a brief closure of SR 198 just to the southwest of Coalinga as rocks and mud impacted the highway.
Source: NOAA National Weather Service Storm Events Database (event 1086603). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Fresno County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.