The heat dome is causing widespread impacts across the South and central U.S., with extreme heat posing health risks, particularly for vulnerable populations such as the elderly and those with pre-existing conditions. The Northeast and Great Lakes regions are at risk of severe storms and flooding, with 2–3 inches (50–76 mm) of rain expected in some areas, including Pennsylvania, New York, and southern New England. The combination of high temperatures and humidity is creating dangerous heat indices, while the storm system could lead to localized flooding and travel disruptions. The exact locations of the heaviest rainfall remain uncertain, increasing the challenge of preparedness.