The heat wave poses significant risks of heat-related illnesses, particularly for vulnerable populations such as the elderly, children, and those without access to air conditioning. Prolonged exposure to high temperatures can lead to dehydration, heat exhaustion, or heat stroke. In Chicago, heat index values are forecast to reach 100-110 °F (38-43 °C) through Wednesday. Wildfires in the West have already claimed the lives of three firefighters and injured two others, with the Cottonwood Fire in Utah burning over 93,000 acres. Elevated fire risks persist across the Four Corners region, increasing the potential for further property damage and air quality issues.