The extreme heat is straining the power grid, increasing the risk of blackouts across the affected states. Vulnerable populations, including the elderly and those with pre-existing health conditions, face heightened risks due to prolonged exposure to high temperatures. Heat indexes of 105-115°F in Texas and Oklahoma, and up to 120°F in the Southwest, pose serious health hazards. Additionally, power outages could disrupt essential services and air conditioning, exacerbating the situation.