Flash flood warnings are in effect for the Pescadero Creek in San Mateo County and Big Sur River in Monterey County, a forecaster at the National Weather Service said. A flash flood warning for San Lorenzo River in Santa Cruz County expired just before 6 p.m., forecaster Diana Henderson said.The weather service issued the warning for the Big Sur River at about 5:30 p.m. It is expected to last until 7:15 p.m., Henderson said. Read More