The first heat wave of the season will go into its third day Friday, with temperatures slated to reach 100 degrees in inland Orange County and L.A. County's San Fernando and Santa Clarita valleys, but a cooling trend is expected starting Sunday.
The combination of hot temperatures, widespread humidity in the single digits and teens, and gusty onshore winds were expected to bring elevated fire danger across inland areas.
Residents were warned of heat-related illnesses and urged to drink plenty of water, avoid outdoor work in high heat, and to never leave children, the elderly, or pets in a closed car parked in hot weather.
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Friday's highs are expected to be in the 70s along the coast, low 80s in metropolitan Los Angeles, and 100 in Woodland Hills, Saugus and Yorba Linda.
Along the L.A. County coast, a beach hazards statement will be in effect through Friday evening, replacing the more serious high surf advisory that was
in force until late Thursday night. But despite the downgrade, NWS forecasters
warned of dangerous rip currents and surf of between 3 and 6 feet.
Beachgoers were urged to exercise caution in and near the water, to never swim alone, and to remain near lifeguard towers.
If caught in a rip current, beachgoers were advised to swim parallel to the shore until they are able to break free.