Thunderstorms, Flooding in Antelope Valley

The most severe conditions hit northern LA County

An upper-level low spinning into the region brought thunderstorms and flooding to parts of Southern California, including the Antelope Valley, forecasters said.

A flash flood watch was in effect from 2 p.m. through Friday evening in the Antelope Valley north of Los Angeles and the San Gabriels in Los Angeles County.

[DON'T USE] Southern California Storms

"We have an interesting weather day," said NBC4 forecaster Crystal Egger. "We have this upper-level low that will trigger the instability. Most of the thunderstorms will be over the mountains and across the high desert with a few rolling into the valley."

Rainfall was concentrated over a small area, increasing the potential for flash flooding.
 

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A flash flood watch means that conditions may develop that lead to flash flooding. The watch indicates the potential for dangerous and sudden pooling of water and swift-moving water.

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