The National Weather Service says thunderstorms are possible Thursday night into Friday morning in the South Bay and much of Los Angeles and Ventura counties.
These "somewhat rare" summertime nocturnal thunderstorms result from a combination of upper level disturbance moving over coastal waters, as well as plenty of mid-level monsoonal moisture and an unstable atmosphere, meteorologists said.
Gusty winds, frequent lightning and thunder are possible, and rainfall may be limited due to a dry layer at lower atmospheric levels, according to the Weather Service.
Officials warned that anyone planning outdoor activities in the area should closely watch the weather and be prepared to take shelter at the first sign of threatening conditions. Some of the safest places to take cover are substantial buildings or hard-topped metal vehicles.
—City News Service contributed to this report.