Flash Flood Warning Issued for Orange County
The National Weather Service (NWS) has issued a flash flood warning for Orange County, California, effective from 4:02 a.m. to 7:00 a.m. on Sunday, October 11, 2026. Heavy rainfall has been detected by Doppler radar and automated rain gauges, with up to 1 inch of rain already fallen and an expected rainfall rate of 0.5 to 1 inch per hour. Additional rainfall of up to 1 inch is possible. Flash flooding is either ongoing or expected to begin shortly, impacting small creeks, streams, urban areas, highways, streets, underpasses, and other low-lying areas. Locations affected include San Clemente, Dana Point, Laguna Niguel, Rancho Santa Margarita, San Juan Capistrano, Las Flores, Ortega Highway, and Coto De Caza.