Flood warning issued in Antelope Valley

Thunderstorms with lightning and high winds are in the forecast Monday for the Antelope Valley and parts of the San Gabriel Valley following a record-setting heat wave that gripped the area last week.

"For Monday, there is sill residual monsoonal moisture across the mountains and deserts, with a slight chance of afternoon thunderstorms lingering across the eastern San Gabriels, eastern Antelope Valley, and northern Ventura county mountains," according to the National Weather Service.

Forecasters said gusty winds could knock down tree limbs and blow around unsecured objects, and minor hail damage to vegetation was possible.

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Torrential rainfall was also occurring and could lead to localized flooding. Authorities advised the public not to drive vehicles through flooded roadways.

"Current satellite imagery shows some low clouds and fog returning to portions of the LA/Ventura coast and Central Coast and do expect it to fill in across most coastal areas overnight, locally spreading into some of the lower coastal valleys. Many interior areas saw a few degrees of cooling today, however Antelope Valley continued to climb over 100 degrees. Little change in temperature is expected Monday," the NWS said Sunday.

Temperatures were a bit lower Sunday than last week's blistering highs, which consistently exceeded 110 degrees in the high desert, but Lancaster still reached 102 degrees, and was expected to remain in triple digits all week long.

The heat has created a potential for critical fire dangers with dry brush, wind and low humidity increasing the risk of fast-moving wildfires.

Other areas of Southern California were expected to feel slightly cooler this week, with highs in the mid-80s in downtown Los Angeles, and the upper 80s to 90s in most valley areas.

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