The extreme heat poses significant health risks, including heat cramps, heat exhaustion, and heat stroke. Phoenix has reported 18 heat-related deaths this year, a sharp increase from five during the same period last year. Emergency services in Phoenix have responded to over 400 heat-related calls since May 1, with daily use of cold water immersion techniques to treat heat stroke victims. The heat wave has also led to the closure of hiking trails and heightened wildfire risks in the region. The Southeast, including the Carolinas and Georgia, is also experiencing heat indices of 113°F to 116°F (45°C to 46.6°C), compounding the danger.