Lightning strikes and brief, heavy downpours spread across Southern California overnight, with the risk of showers and potential flooding continuing through the day Thursday.

“A lot of this is just energy being pushed in from a tropical storm. Tropical Storm Mario is bringing remnants up toward Southern California," KTLA Meteorologist Henry DiCarlo said Thursday morning. “Just about all of Southern California is at risk of some rain this morning, and we’ll see that chance of rain increasing with more thunderstorms this afternoon.”

Afternoon temperatures will be cooler through Friday, but it will still be warm and muggy as the increased moisture raises humidity levels, according to the National Weather Service (NWS).

Rain and thunderstorm chances are expected to continue into at least Fr

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