Update: Heat advisory affecting Southern California until Saturday night

Published May 10, 2025

An updated heat advisory was issued by the National Weather Service on Friday at 9:15 a.m. valid from 10 a.m. until Saturday 9 p.m. The advisory is for Santa Clarita Valley, Southern Salinas Valley, Santa Ynez Mountains Western Range, Santa Ynez Mountains Eastern Range, Lake Casitas, Ojai Valley, Central Ventura County Valleys, Western Santa Monica Mountains Recreational area, Eastern Santa Monica Mountains Recreational area, Calabasas and Agoura Hills, Western San Fernando Valley, Eastern San Fernando Valley, Southeastern Ventura County Valleys, Santa Susana Mountains and Los Angeles County San Gabriel Valley.

The NWS states, “Temperatures up to 98 degrees expected.”

“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,” says the NWS.

Heat safety: A guide to staying safe in high temperatures

Stay hydrated: Keep yourself well-hydrated by drinking plenty of fluids.

Seek shelter: Stay indoors in an air-conditioned room to keep cool.

Avoid sun exposure: Stay out of the sun, and check up on relatives and neighbors.

Child and pet safety: Take every precaution to never leave young children and pets alone in vehicles, especially in extreme heat when car interiors can quickly become hazardous.

Caution outdoors: Take extra precautions if you work or spend time outside.

Time your activities wisely: Whenever possible, reschedule strenuous activities to early morning or evening hours when temperatures are more manageable.

Recognize heat-related issues: Familiarize yourself with warning signs and how tp recognize the symptoms of heat exhaustion and heat stroke.

Dress for comfort: Select lightweight and loose-fitting outfits for enhanced comfort.

Additional tips for outdoor workers:

• The Occupational Safety and Health Administration (OSHA) recommends frequent rest breaks in shaded or air-conditioned areas for outdoor workers.

• If someone is overwhelmed by the heat, swiftly relocate them to a cool, shaded location.

• In emergency situations, dial 911 for immediate assistance.

These NWS heat safety recommendations are vital for your well-being during periods of high temperatures. Stay informed and take the necessary steps to protect yourself and others from the heat’s potentially dangerous effects.

Source: The National Weather Service

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