Yosemite was placed under an updated heat advisory by the National Weather Service on Wednesday at 10:39 p.m. The advisory is valid from Friday 11 a.m. until Sunday, Jun. 1 at 7 a.m.
The NWS Hanford CA said, “High temperatures up to 106 degrees expected.”
“Moderate to Major risk for heat-related illnesses, especially for those sensitive to heat,” the NWS said.
The full list of affected locations includes:
- Yosemite Valley
- West Side Mountains north of 198
- Los Banos – Dos Palos
- Merced – Madera – Mendota
- Planada – Le Grand – Snelling
- Coalinga – Avenal
- West Side of Fresno/Kings Counties
- Caruthers – San Joaquin – Selma
- Fresno-Clovis
- West Side Mountains South of 198
- Buttonwillow – Lost Hills – I5
- Delano-Wasco-Shafter
- Hanford – Corcoran – Lemoore
- Visalia – Porterville – Reedley
- Bakersfield
- Southeast San Joaquin Valley
- South End San Joaquin Valley
- Mariposa Madera Foothills
- Mariposa-Madera Lower Sierra
- Fresno-Tulare Foothills
- Fresno-Tulare Lower Sierra
- South End Sierra Foothills
- Kern River Valley
- Buena Vista County

Tips from the NWS for staying safe during a heat wave
- Stay hydrated: Keep yourself well-hydrated by drinking 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: Never leave young children and pets unattended in vehicles, especially when car interiors can reach lethal temperatures within minutes.
- Caution outdoors: If you work or spend time outside, be sure to take additional safety measures.
- Optimal timing: If possible, move strenuous activities to early morning or evening for more favorable conditions.
- 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 stay comfortable.
Additional recommendations for outdoor workers:
- For outdoor workers, the Occupational Safety and Health Administration (OSHA) recommends regular rest breaks in shaded or air-conditioned areas.
- If someone succumbs to the heat, promptly 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.