The National Weather Service released an updated heat advisory at 2:05 a.m. on Friday valid from 10 a.m. until Saturday, May. 10 at 9 p.m. for San Bernardino and Riverside County Valleys.
According to the NWS San Diego CA, “Temperatures up to 102 degrees today and 106 Saturday expected.”
“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.