At 2:22 a.m. on Thursday, the National Weather Service issued an updated heat advisory in effect until 8 p.m. for San Bernardino and Riverside County Valleys.
According to the NWS San Diego CA, “High temperatures of 98 to 107 degrees expected.”
“Hot temperatures may cause heat illnesses,” according to the NWS.

Hot weather safety: Tips for staying safe and healthy
- Stay hydrated: Drink plenty of fluids.
- Seek cool shelter: Opt for an air-conditioned room to stay comfortable.
- Avoid sun exposure: Stay out of the sun, and check up on relatives and neighbors.
- Child and pet safety: Do not leave young children and pets unattended in vehicles when car interiors can reach lethal temperatures in a matter of minutes.
- Caution outdoors: If you work or spend time outside, be sure to take additional safety measures.
- Select the ideal time: When possible, reschedule strenuous activities to early morning or evening.
- Recognize heat-related issues: Educate yourself about the signs and symptoms of heat exhaustion and heat stroke.
- Dress for comfort: Wear lightweight and loose-fitting clothing.
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 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 directives are essential for safeguarding your well-being when facing high temperatures. Stay well-informed and take the necessary precautions to shield yourself and others from the potential hazards of extreme heat.