A significant heat dome is impacting the central and eastern regions of the United States, putting over 230 million individuals at risk of hazardous, record-high temperatures throughout the July 4th holiday. The National Weather Service alerts that heat indices may soar to 105-110°F across areas including the Midwest, Great Lakes, Ohio Valley, and Northeast. States such as Iowa, Missouri, and Kansas are currently under extreme heat advisories. Major cities like New York City, Washington DC, and Chicago are predicted to experience temperatures in the upper 90s, with nighttime lows remaining in the 70s, providing no respite. Authorities indicate that this weather phenomenon is the most lethal, claiming more American lives annually than tornadoes and hurricanes combined.
