Flash flood warning issued for San Bernardino County, parts of L.A. County

Los Angeles County firefighters and CHP officers worked to rescue motorists after about 20 cars became trapped in a mudslide in Lake Hughes on Sunday night, as the remnants of Hurricane Kay brought flash flood warnings and heavy rainfall to parts of San Bernardino, Los Angeles and Ventura counties.

“We have helicopters out there trying to get everybody safe,” said L.A. County Fire Supervisor Imy Velderrain. No injuries had been reported by Sunday night, she said.

Flash flood warnings were issued Sunday night for San Bernardino County and parts of Los Angeles and Ventura Counties, the National Weather Service announced. Parts of L.A. County, from Pomona to Castaic Lake, were warned of flash floods throughout the evening.

In San Bernardino County, affected areas included San Bernardino, Rialto, Highland, Muscoy, Crestline, Devore and the I-15 Freeway through the Cajon Pass.

Between 0.75 and 1.25 inches have fallen in San Bernardino County, and officials Sunday night were expecting an additional 0.75 to one inch.

Most flood deaths occur in vehicles. People in the affected areas are advised to exercise caution around streams, creaks, highways, streets, underpasses and other poor drainage and low-lying areas.