The National Weather Service (NWS) issued a severe thunderstorm warning for southeastern San Diego County until 2:15 p.m.
The NWS said a severe thunderstorm was located near Interstate 8 between Boulevard and the Imperial County line. It was slowly moving northwest.
An NBC 7 news crew in Julian just before 2 p.m. heard thunder rumbling and saw dark clouds in the sky.
A flash flood watch was also issued for the San Diego County mountains until 7 p.m. Wednesday.
During that time period, the storm has the potential to create flash floods.
Residents could see a quarter to a half inch of rain some thunderstorm and lightning activity, according to NBC 7’s Ashley Matthews.
Unusually high humidity continues for another day after five days of similar conditions.
“I’m sorry, It’s going to be a little muggy out there and sticky,” Matthews said.
There is a chance for pop-up showers again on Thursday.
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