Record Temperatures Trigger Heat Advisory For Mother's Day Weekend

LOS ANGELES, CA — Southern California is in for the hottest day of the year this Mother's Day weekend as a high pressure system drives temperatures 10 to 25 degrees above normal.

The National Weather Service issued a heat advisory Thursday to take effect from 10 a.m. Friday to 9 p.m. Saturday when record-breaking triple digit temperatures are possible in the Santa Monica Mountains, the San Gabriel and San Fernando Valleys.

The heat is expected to peak Friday and Saturday before cooling down Sunday. Northridge and Woodland Hills may see 100-degree highs Saturday, while the San Gabriel Valley and foothills swelter at 98 degrees, according to the weather service. Even the coast is expected to bake in the mini heatwave, with a Saturday high of 80 in Malibu.

"There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors," the National Weather Service warned.

"Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors," the weather service added. "Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke."

The heat wave is expected to be short-lived. By Sunday, the high pressure ridge will shift inland, allowing cooling ocean breezes to return.

"The high pressure ridge will shift east late Saturday into Sunday allowing cooler air from the ocean to surge inland," according to the NWS. "The timing of this surge will determine how much temperatures drop on Sunday."

The temperature shift is expected to be dramatic by Monday. Saturday's 98-100-degree high in Woodland Hills is expected to fall to 74 degrees by Monday.