The heat dome is causing widespread impacts, including record-breaking temperatures and increased humidity across the south-central U.S. and Four Corners region. Cities like Jackson, MS, are experiencing unprecedented atmospheric conditions, with 500 mb heights nearing 6000 meters. The high temperatures and humidity pose health risks, particularly for vulnerable populations such as the elderly and outdoor workers. Additionally, the periphery of the heat dome is seeing heavy rainfall and thunderstorms, leading to flash flooding risks, especially in areas like Kansas City, which faces a moderate risk of flooding today.