Southern California placed under an extreme heat warning from Tuesday to Thursday

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An extreme heat warning was issued by the NWS Phoenix AZ on Monday at 11:48 p.m. valid from Tuesday 10 a.m. until Thursday 8 p.m. The warning is for Imperial County Southwest, Salton Sea, Imperial County Southeast, Imperial County West, Imperial Valley, Palo Verde Valley and Chuckwalla Valley.

The NWS informs, "Dangerously hot and humid conditions. Afternoon temperatures of 106 to 116 degrees expected. Overnight temperatures of 85 to 91. Moderate to Major Heat Risk."

"Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke," comments the NWS.

This warning is in effect until Thursday at 8 p.m.

Tips from the NWS for staying safe during a heat wave

• Stay hydrated: Drink plenty of fluids.
• Stay in an air-conditioned room.
• Avoid direct sun exposure: Protect yourself and check on vulnerable relatives and neighbors.
• Child and pet welfare: Never forget to safeguard young children and pets by not leaving them unattended in vehicles, especially during scorching weather when car interiors can become life-threateningly hot.
• Exercise caution outdoors: If you work or spend time outside, take additional safety measures.
• Time your activities wisely: If possible, reschedule strenuous activities to early morning or evening when the heat is less intense.
• Recognize warning signs: Familiarize yourself with symptoms of heat exhaustion and heat stroke.
• Stay cool with clothing: Wear lightweight and loose-fitting clothing.

For a safer outdoor work environment, follow the Occupational Safety and Health Administration (OSHA)'s guidance by scheduling regular rest breaks in shaded or air-conditioned places. If anyone shows signs of heat illness, promptly move them to a cool, shaded area. In an emergency, call 911.

Source: The National Weather Service

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This story was originally published July 13, 2026 at 11:51 PM.