LOS ANGELES - Power was restored to thousands of Southern California residents overnight, but utility crews were continuing their work through Friday morning for some residents who still woke up without electricity.
About 3,100 people were without power in the Los Angeles Metro and Valley areas amid an ongoing intense heat wave across the Southland.
The areas with the largest outages in the Los Angeles area, according the Los Angeles Department of Water website, include Canoga Park, North Hollywood and Hollywood.
About 850 customers were without power in Canoga Park. Nearly 500 were affected in North Hollywood and about 300 were affected in the Hollywood Hills.
Tarzana, Highland Park, Lincoln Heights and Encino residents were also waking up to no power, along with about 850 customers in other various L.A. areas.
MORE: Wild weather sweeps over Southern California, causing storms, power outages
At the peak of the outage Thursday night, more than 14,000 customers were without power partly due to monsoonal moisture that created wild weather, which brought down power lines and closed beaches. Temperatures remained in the 80s and 70s throughout the night.
The moisture first moved into the Inland Empire, bringing sudden and heavy rains, lightning strikes, winds and thunder.
A lightning strike caused a massive power outage in Colton, leaving at least 50,000 people without power in the heat.
In Corona, the area was hit with heavy rains, hail, strong winds and thunderstorms.
The Los Angeles Department of Water and Power said the massive outage is likely heat-related.
There was no word on when all the power will be restored.
Forecasts showed high pressure causing the heat to be almost stationary, meaning the severe weather conditions will stick around for some time.
The California Independent System Operator, which manages the state's power grid, issued a statewide Flex Alert that will be in effect from 1 to 10 p.m. Friday, calling for voluntary electricity conservation. The alert comes as most regions were expected to see triple-digit temperatures.
The risk of storms could increase if Tropical Storm Lidia, south of Baja California, sends more monsoonal moisture into the state.
The Associated Press contributed to this report.