The National Weather Service has issued an extreme heat warning for Beverly Hills and the Santa Monica Mountains canyon terrain covering Bel Air and Holmby Hills, with temperatures expected to reach 95 to 110 degrees from Saturday, Aug. 1, through Monday, Aug. 3.

At the same time, a High Surf Advisory driven by Hurricane Genevieve remains in effect through 5 p.m. Sunday, Aug. 2, bringing 4- to 8-foot breaking waves and dangerous rip currents to Los Angeles County beaches. The overlap creates a problem for residents hoping to escape inland heat at the coast.

This warning is an escalation. The NWS previously issued a heat advisory for the area through July 27. The current alert is a higher-tier warning, indicating conditions dangerous to everyone, not just vulnerable populations. As we reported July 20, this marks the area's third significant heat event in two weeks.

Peak danger window

A brief cooldown Thursday, July 30, will give way to rapidly rising temperatures by Friday. The NWS warning specifies the most dangerous period runs from 10 a.m. Saturday through 8 p.m. Monday, with temperatures running 10 to 15 degrees above early August normals. The agency noted that heat hazards may extend into the following week.

Canyon residents in Bel Air and Holmby Hills face the highest risk. The Santa Monica Mountains Recreational Area traps heat in narrow valleys with limited airflow, and the NWS warning names this zone specifically.

Dangerous surf complicates beach escape

Hurricane Genevieve, which briefly reached Category 5 strength in the Eastern Pacific before weakening to a Category 3, is generating swells that have already strained lifeguard resources. Los Angeles County lifeguards performed nearly 2,000 ocean rescues the weekend of July 25-26, before the peak Genevieve swell arrived.

A concurrent Coastal Flood Advisory remains in effect through early Saturday morning, with high tides of 6.2 to nearly 7.0 feet expected in the evening hours through Friday night.

The NWS High Surf Advisory covers the Malibu Coast and all Los Angeles County beaches. LA County Fire Department Lifeguard spokesman Pono Barnes told the Orange County Register on Tuesday, July 28, that conditions "could be, in certain areas, in the extreme range that poses definite risk to swimmers."

Will Rogers and Santa Monica beaches, the nearest coastal areas to Bel Air and Holmby Hills, are expected to see sizable surf through Sunday.

What residents should do

For the heat: Stay in air-conditioned spaces. Drink plenty of fluids. Check on elderly neighbors. Never leave children or pets in parked vehicles. Residents without air conditioning can call 211 for shelter assistance.

For the surf: The NWS advises staying out of the water entirely or remaining near occupied lifeguard towers. Stay off rock jetties.

Local resources: The Beverly Hills Fire Department's Just in Case BH emergency preparedness program covers all nine city zones. Residents can sign up for city text alerts by texting BEVHILLS to 888777. The city's Disaster Hotline is 310-550-4680, and Emergency Management can be reached at 310-285-1025.