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LA storm: Thunderstorms possible through Monday

File: Sunlight breaks through a band of heavy clouds to illuminate the Strand at Manhattan Beach, Calif., Sunday, March 1, 2015.
File: Sunlight breaks through a band of heavy clouds to illuminate the Strand at Manhattan Beach, Calif., Sunday, March 1, 2015.
John Antczak/AP

Areas of Southern California got a dose of much-needed rain Saturday, along with some applauding thunderclaps and lightning. And it may not be over yet. 

The National Weather Service said SoCal can expect about the same Sunday: Hot, muggy weather with the possibility of by flashes of lightning and thunder. 

"We can't rule out the possibility of a shower or thunderstorm just about anywhere today," said NWS spokesman David Sweet. 

Saturday's storm knocked out power to thousands. As of 9 a.m. Sunday, about 3,700 Southern California Edison customers remained without power, the agency said. L.A.'s Department of Water and Power tweeted it was scrambling to restore power to about 4,700 customers as well.

If you're heading to the beach, be aware that the NWS is warning that rip currents could be especially dangerous, and swells are likely to reach 6 feet. If you hear thunder or see lightning, it's best to get off the sand. 

"We're getting the remnants of what is now tropical depression Dolores," said Sweet. "And all that moisture is moving up through Southern California and bringing us the rain."

NWS has is also warning of potential flash floods in the mountains of Santa Monica, Santa Barbara, Ventura and L.A. counties as well as for the Antelope, Ventura and San Gabriel valleys. 

Tweet: Flash flood

"These thunderstorms are capable of heavy rainfall amounts in short periods so if you encounter any flooding, the best thing to do is to go to higher ground," said Sweet. 

The warnings are in effect through Monday night. Things should dry out by Tuesday, Sweet said.