Forecasters warned of another thunderstorm and possible flooding in northern Los Angeles County Sunday, one day after lightning strikes caused multiple small fires in the Southland.

The National Weather Service said a “strong thunderstorm” would impact the Antelope Valley and adjacent foothills through 1:15 p.m. Sunday, with wind gusts up to 50 mph, pea-size hail and some dry lightning strikes likely.

“At 1221 PM PDT, Doppler radar was tracking a strong thunderstorm near Pearblossom AND Littlerock, approaching Highway 138. This storm was drifting slowly northward at 5 to 10 mph,” the agency said.

A short time later the NWS added a flood advisory for the same area, warning of minor flooding in low-lying and poor drainage areas and dangerous flows over low-water crossings until 3:15 p.m.

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