SAN DIEGO (FOX 5/KUSI) — Early Sunday morning, officials with the National Weather Service (NWS) reported that an upper-level low pressure system is moving east into Arizona, allowing a few showers to linger just north of Southern California.
While those showers are not expected to impact San Diego directly, residual mid-level moisture could spark isolated showers or thunderstorms over the mountain areas Sunday afternoon. Rainfall is expected to be light, with rates under a quarter inch per hour or less. This means any flooding risk is minimal.
In the meantime, a deep marine layer—currently estimated at around 4,000 feet— has brought widespread low clouds across coastal and inland valleys. A clear patch briefly appeared over southwestern San Diego County early Sunday morning, but weather officials say clouds are expected to fill in again before partial clearing by the afternoon hours.
Highs Sunday will remain several degrees below normal, making for a cooler end to the weekend, according to NWS predictions…