The Extreme Heat Warning poses significant risks of heat-related illnesses, particularly for vulnerable populations such as the elderly, children, and those without access to air conditioning. Severe thunderstorms in Santa Cruz, Cochise, and Pima Counties may bring damaging winds, heavy rainfall, and localized flooding. The Flash Flood Warning in Pima County indicates a heightened risk of sudden and dangerous flooding in low-lying areas. Dust storms accompanying the monsoon activity could reduce visibility and exacerbate respiratory issues for individuals with pre-existing conditions.