The National Weather Service released an updated heat advisory at 8:31 p.m. on Friday in effect until Saturday, May. 10 at 9 p.m. for San Bernardino and Riverside County Valleys.
The NWS San Diego CA adds to anticipate, “Temperatures up to 101 degrees – 103, locally near 105.”
“Hot temperatures may cause heat illnesses,” according to the NWS.

Mastering the heat: Guidelines for staying safe in high temperatures
- Stay hydrated: Make sure to drink 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: Never leave young children and pets alone in vehicles, especially during hot weather when car interiors can become dangerously hot in a matter of minutes.
- Caution outdoors: If you must work or spend time outdoors, take extra precautions.
- Select the ideal time: If possible, reschedule strenuous activities to early morning or evening when the heat is less intense.
- Recognize heat-related issues: Know how to recognize the signs and symptoms of heat exhaustion and heat stroke.
- Stay cool with clothing: Wear lightweight and loose-fitting clothing.
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 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.