Forecasters are predicting a possibility of monsoon showers and thunderstorms in parts of Southern California on Sunday evening, with heavy rains having already fallen in the San Bernardino Mountains and the high desert.
Areas just south of Big Bear received 1.3 inches of precipitation on Sunday, and there were showers in eastern Antelope Valley, meteorologists said. A flash flood watch was in effect until 10 p.m. Sunday in the mountains of Los Angeles County and Ventura, as well as the Santa Clarita and Antelope Valleys.
“It’s our monsoon season,” said Dan Gregoria, a meteorologist with the National Weather Service in San Diego. “But the humidity levels are really high right now for this area.”
Some scattered showers — but less than Sunday — are likely to continue through at least Monday, especially in the mountains and deserts, according to the National Weather Service.
In Yucaipa, 10 miles east of San Bernardino, flooding and debris flows closed Highway 38 near Angelus Oaks early Sunday morning, California Highway Patrol Officer Jacob Grieda said.
More than 20 cars were stuck in the mud overnight and the drivers were assisted by CalTrans officers and officials. That part of Highway 38 is expected to remain closed through at least Monday morning, Grieda said.
Hot and humid weather is expected to persist throughout the week in Southland, with highs in the mid 80s closer to the coast and in the 90s for inland areas.