Flash flood concerns persist in Southern California

Rare Rain Strong Winds Sweep Through Southern California

Rare Rain Strong Winds Sweep Through Southern CaliforniaKNBC-TV Viewer Images

The flash flood watches continue through Wednesday evening, but there is a chance they may need to be extended because the moisture is expected to linger until Thursday. "In addition to the flash flood risk for inland areas, the heavy rain could produce flooding problems over urbanized land and debris flows below recent burn scars".

Friday will be sunny and hot, with a slight chance of showers, and a high near 96.

"Drivers could be washed off the road", Andrew Rorke with the National Weather Service says.

The moisture brought thunderstorms and lightning Tuesday, with localized flooding. The only respite from the high temperatures would be cloud cover, but "if there is enough sunshine, the heat and humidity may get close to heat advisory thresholds" in some areas, says the NWS. PRECAUTIONARY/PREPAREDNESS ACTIONS. A Flash Flood Warning means that flooding will occur quickly, and could be life threatening for those who try to drive through flooded roads or underpasses.

The county encountered a massive flash flood earlier this year at the El Capitan Canyon campground. Forecasters urge swimmers caught in a rip current not to panic but to try to relax and float, remaining parallel to shore until able to break free. Mostly sunny, with a high near 97.

Partly cloudy skies was the salient element forecast in Orange County today, along with highs of 74 in Laguna Beach; 76 in San Clemente; 78 in Newport Beach; 90 in Irvine and Mission Viejo; 91 in Anaheim; 92 in Fullerton; and 94 in Yorba Linda.

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