Thousands of homes and businesses have been without power today in Los Angeles as a heat wave strains the electrical system.
The Department of Water and Power says equipment has been breaking down as people run their air conditioners around the clock.
Scattered outages are reported, although most have lasted less than an hour.
About 5,700 homes and businesses have been affected at some point today.
The largest outage involved about 2,600 people in Eagle Rock.
The heat wave is expected to continue through the Labor Day weekend, bringing triple-digit highs to valleys, mountains and deserts.
It's about 97 right now in Los Angeles and a high of 113 is expected in Woodland Hills in the San Fernando Valley.
At the same time, unstable and humid weather is creating a chance of fierce afternoon and evening thunderstorms in the deserts.
The National Weather Service issued a flash-flood warning this afternoon for northeastern Los Angeles County and portions of San Bernardino, Riverside and San Diego counties.
The National Weather Service also issued a warning that a rotating storm near Lake Elsinore could produce hail and winds gusting to 60 mph.
So far, though, no problems have been reported.