Dangerous Heat Persists Across Southern and Southwestern US, With Extreme Heat Warnings and Advisories

The National Weather Service has issued Heat Advisories for parts of Arkansas, northern Mississippi, and western Tennessee, with heat-index values potentially reaching 43°C (109°F). Extreme Heat Warnings are also in effect for portions of the lower deserts in Arizona and southeast California, with temperatures peaking 5-10° above normal. These conditions are expected to result in widespread Moderate to Major HeatRisk.