A brief but substantial storm is expected to bring heavy rain, thunderstorms and possible flooding to Southern California beginning as early as Monday evening, prompting evacuation warnings for residents near recent burn areas.

The rain could begin as early as late Monday night and is expected to produce between three-quarters of an inch to 1.5 inches of precipitation across most areas, with 2 to 4 inches possible on south-facing mountain slopes, according to the National Weather Service. Forecasters said as much as 5 inches could potentially fall in the San Gabriel Mountains.

“All areas will see rain. Some areas will see short bursts of heavy rain, although it remains difficult to predict exactly where,” according to the NWS. “South-facing slopes and foothills have the highest chance of

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