A monsoon weather pattern for San Diego County was predicted to continue through this week, leading to a daily risk of thunderstorms, mainly during the afternoons and evenings over the mountains and deserts, the National Weather Service said.
Modest drying with continued warm and humid weather inland was expected to lead to fewer thunderstorms early this week, but moisture appears to increase late in the week, the NWS said.
The increase in moisture later this week will come with slightly lower temperatures and higher chances of showers and storms across Southern California.
There was no discernible change in the upper air pattern over the next five days or so, the NWS said, and only a barely discernible change in moisture and instability.
The NWS of San Diego issued a flash flood warning for the Campo, Pine Valley, and Boulevard areas of San Diego's East County until 7 pm. Monday.
In case of flooding, do not drive through flooded roadways, the NWS emphasized. Immediately move to higher ground and avoid walking and driving through flood waters, the NWS said.