EXCESSIVE HEAT IN THE SOUTHWEST

Dangerous heat will continue across the Desert Southwest today and tomorrow as strong high pressure maintains a prolonged period of blazing sunshine and extreme temperatures.

Afternoon highs will once again climb above 110°F across many lower-elevation areas of Arizona, southern Nevada, and the desert regions of southeastern California. These temperatures will create hazardous conditions for anyone spending extended time outdoors, especially during the hottest part of the day.

The extreme heat is expected to persist through the weekend, making for a prolonged period of dangerous conditions. Heat-related illnesses can develop quickly, particularly for those working or exercising outside, older adults, young children, and anyone without access to adequate cooling.

If you must be outdoors, drink plenty of water throughout the day, take frequent breaks in shaded or air-conditioned locations, wear lightweight, light-colored clothing, and avoid strenuous activities during the afternoon and early evening when temperatures are at their highest. Never leave children or pets unattended in vehicles, where temperatures can become life-threatening within minutes.

Overall, the Desert Southwest will remain under a dangerous heat wave through the weekend, with little relief expected until the upper-level ridge begins to weaken.