Los Angeles County is the focus of a heat advisory released at 7:37 p.m. on Tuesday by the National Weather Service. The advisory is valid from Wednesday 11 a.m. until Thursday, May. 22 at 9 p.m.
The NWS Los Angeles/Oxnard CA said, “Temperatures up to 100 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. Do not leave people or pets in closed vehicles,” the NWS said.
The full list of affected locations includes:
- Santa Clarita Valley
- Los Angeles County Inland Coast including Downtown Los Angeles
- Santa Susana Mountains
- San Gabriel Valley
- Southern Salinas Valley
- Santa Ynez Valley
- Santa Ynez Mountains Western Range
- Santa Ynez Mountains Eastern Range
- Santa Barbara County Interior Mountains
- Lake Casitas
- Ojai Valley
- Central Ventura County Valleys
- Southeastern Ventura County Valleys

Heat safety: A guide to staying safe in high temperatures
- Stay hydrated: Keep yourself well-hydrated by drinking plenty of fluids.
- Find cool shelter: Stay in an air-conditioned room.
- Avoid sun exposure: Stay out of the sun, and make sure to check up on relatives and neighbors.
- Child and pet safety: Be vigilant about never leaving young children and pets in vehicles without supervision, especially during periods of intense heat, as car interiors can quickly become extremely hot.
- Caution outdoors: If you work or spend time outside, be sure to take additional safety measures.
- Time your activities wisely: When possible, reschedule strenuous activities to early morning or evening.
- Recognize heat-related issues: Familiarize yourself with warning signs and how tp recognize the symptoms of heat exhaustion and heat stroke.
- Stay cool with clothing: Wear lightweight, loose-fitting clothing to help your body stay cool.
Additional recommendations 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 succumbs to the heat, promptly relocate them to a cool, shaded location.
- In emergencies, call 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.