Dangerous Heat Wave Grips Southern U.S., Southeast Feels Like 115°F
A late summer heat wave is affecting much of the United States, with dangerous temperatures forecasted across the Southern Plains and lower Mississippi Valley through Wednesday. The National Weather Service has issued heat advisories for approximately 97 million people, with temperatures expected to reach 100°F (37.8°C) in some areas. High humidity is exacerbating the situation, making it feel as hot as 115°F (46°C) in parts of the Southeast. The heat wave is driven by a high-pressure system trapping heat and humidity near the ground, creating a 'heat dome' effect. Nighttime temperatures are also expected to remain high, with lows staying above 80°F (26.7°C) in urban areas, increasing health risks. 
