Deadly Heat Wave and Severe Storms Disrupt Iowa Fourth of July Celebrations

A record-setting heat wave suspected in at least 25 deaths across the country has also disrupted Fourth of July festivities in Iowa and the Midwest, with severe thunderstorms and power outages adding to the misery. The National Weather Service reported that more than 156 million people in the eastern two-thirds of the nation were under heat alerts on Saturday, with temperatures topping 100 degrees in some areas.

In Iowa, damaging wind gusts were reported as part of a larger storm system that moved through the region. Power outages affected more than 1.3 million utility customers across a diagonal swath from Oklahoma to Connecticut, according to PowerOutage.us. While Iowa's specific outage numbers were not immediately available, the storms knocked out power to hundreds of thousands in neighboring states, including more than 305,000 in Michigan and over 100,000 in Missouri.

Heat Wave Linked to Multiple Deaths

Authorities have linked the extreme heat to at least 25 deaths from the Deep South to the East Coast. In New Jersey, the death toll rose to 22, with victims ranging from their 30s to 80s, state health department spokesperson Dalya Ewais said. Many were found in homes without air conditioning, according to state health commissioner Dr. Raynard Washington.

“Unfortunately, many of these individuals were found in homes without air conditioning,” Washington said at a news conference. “Few were outside of their residence, some on the street and some even in parked cars.”

One heat-related death was reported in Cook County, Illinois, where the cause was listed as organic cardiovascular disease with heat stress as a contributing factor. In Mississippi, 74-year-old Mitchell Ray Cooley died from heat exposure after being reported missing. His body was found behind a gas station.

Severe Storms Hit Iowa and the Midwest

The heat wave is being driven by a high-pressure dome of heat parked over the country, pushing air downward and heating it as it descends. But a clash of warm and cooler air has produced severe thunderstorms from parts of Missouri to Pennsylvania. More than 72 million people were under severe thunderstorm watches on Saturday, with winds up to 65 mph and quarter-sized hail possible.

In Iowa, the storms brought damaging wind gusts that disrupted outdoor celebrations and left some residents without power. The National Weather Service warned that the unsettled weather could continue, with cool air from the north expected to push the heat dome south and west in the coming days.

Fourth of July Celebrations Disrupted

The extreme weather forced changes to Fourth of July events across the country. In Washington, D.C., Salute to America 250 festivities on the National Mall were delayed after the D.C. Homeland Security and Emergency Management Agency urged attendees to seek shelter due to a severe thunderstorm. Festivalgoers rushed to white tents for cover as temperatures on chairs reached 160 degrees.

President Donald Trump delivered a speech roughly four hours after the shelter order, followed by a massive fireworks show amid light rain. In Iowa, many communities scaled back or postponed fireworks displays and parades due to the heat and storm threat.

What Iowans Should Know About Heat Safety

With temperatures expected to remain high in the coming days, officials urge Iowans to take precautions. The National Weather Service warns that “dangerous overnight warmth and high humidity continue to exacerbate heat-related impacts.”

Key safety tips include staying hydrated, checking on elderly neighbors, and never leaving children or pets in parked cars. Those without air conditioning should seek cooling centers or public spaces like libraries and malls.

“This is not a typical summer heat wave,” Ewais said. “This type of heat can quickly become life-threatening to humans and to animals of all ages.”

Looking Ahead

The National Weather Service expects cool air from the north to push the heat dome south and west, potentially lowering temperatures in the Northeast. However, Iowa and the Midwest may continue to see unsettled weather as the system moves through. Residents are advised to monitor local forecasts and stay prepared for additional storms and power outages.

This article was originally published by NBC News and adapted for Just The News Iowa.