The extreme heat poses significant risks to public health, particularly for vulnerable populations such as the elderly, children, and those with pre-existing health conditions. Prolonged exposure to high temperatures can lead to heat exhaustion or heat stroke, which can be life-threatening. Areas under extreme heat warnings, such as parts of Oregon, Washington, and California, are at the highest risk, with temperatures exceeding 100°F (38°C). Heat advisories in the southern and southeastern U.S. also highlight the potential for dangerous conditions, with heat index values reaching up to 110°F (43°C). Residents are advised to take precautions to avoid heat-related illnesses.