The extreme heat poses a significant risk to vulnerable populations, including the elderly, children, and those with pre-existing health conditions. Heat indices reaching 105°F (40.5°C) could lead to heat-related illnesses if proper precautions are not taken. Severe thunderstorms in northern Minnesota may bring damaging winds, hail, and the potential for tornadoes, particularly in counties along the Canadian border and cities like Alexandria, Bemidji, and Grand Rapids. The storms could become dangerous if they develop as predicted, especially on Sunday afternoon and evening.