Much of the United States is caught in a dangerous double threat, with a punishing heat wave and fast-moving wildfires bearing down on the country just as the July 4 holiday weekend approaches. According to forecasters, around 170 million people are under heat alerts as record high temperatures take hold across a huge stretch of the nation, straining people, crews and infrastructure alike.
The heat is baking roughly half the country, with temperatures expected to soar into the high 90s across most of the Northeast and Midwest, and it is set to feel even hotter than the thermometer suggests. The heat index has already topped 100 degrees in Chicago, St. Louis and Milwaukee, where crews battling a large fire have been placed on reduced work cycles, encouraged to take breaks, cool off and rehydrate.
Forecasters warn the situation is likely to get worse before it gets better. As the heat pushes east, the numbers become extreme: Columbus is expected to reach around 107, while it could feel like 111 in Nashville and as high as 114 in Memphis. Richmond is forecast near 102 and New York City is set to feel close to 100, with the heat building across the eastern half of the country through Thursday and Friday and lingering in the Carolinas right through the Fourth.
Out West, extremely dry and windy conditions are fuelling massive wildfires. In Colorado, the ferocious Aspen Acres fire has forced hundreds of people to evacuate and destroyed more than 150 structures. In Utah, evacuees were allowed back into the Cottonwood burn zone for the first time, among them campground managers who described having only about five minutes to grab what they could as the flames roared through like a freight train, ultimately losing everything.
The twin hazards are already reshaping plans for the holiday period. In Philadelphia, World Cup organizers are scaling back viewing schedules at several fan fests because of the heat, while in Utah most fireworks are now banned outright. The governors of both Utah and Colorado have urged residents to be cautious as they celebrate, warning that a single careless spark could ignite new fires in tinder-dry conditions.
Officials are especially concerned about the days ahead, when rising temperatures and dry conditions combine to heighten the fire risk across more than half the country. With overnight temperatures failing to cool off in many places, the heat becomes particularly dangerous, and authorities say the dangerous stretch is unlikely to ease quickly, leaving communities to brace for an uncomfortable and potentially hazardous holiday weekend.