A punishing heat wave is sweeping across the United States this weekend, bringing dangerous temperatures to vast swaths of the country, while a potential tropical system threatens to form in the Gulf of Mexico. The extreme weather events are putting more than 100 million Americans under heat alerts and raising concerns about flooding in multiple regions.
According to CNN, the heat wave is particularly intense in the Ohio Valley and mid-Atlantic regions, including the densely populated I-95 corridor. Washington, DC has declared a heat emergency after temperatures soared to 100°F on Saturday, a milestone not reached in the capital since 2012.
"An extended heat emergency will remain activated throughout the weekend and into next week," DC Mayor Muriel Bowser said.
Video: Washingtonians seek relief from the heat as the temperature hits 100 degrees /Credit: Reuters
The National Weather Service warns that the combination of extreme heat and humidity could push the heat index to 100-105 degrees over a widespread area, with some southern mid-Atlantic regions potentially experiencing feels-like temperatures of 110 degrees.
In response to the impending heat wave, Maryland Governor Wes Moore signed a state of preparedness declaration on Thursday. New York Governor Kathy Hochul announced the opening of the state's emergency operations center to monitor conditions and coordinate resources across all 62 counties.
New York City Mayor Eric Adams stated, "Cooling centers will be open across the city," as the city braces for what could be its longest stretch of 90-degree days ever recorded in June.
Meanwhile, the National Hurricane Center reports that a system with a medium chance of tropical development could form in the southwestern Gulf of Mexico this weekend, potentially following a similar path to the recent Tropical Storm Alberto. While not expected to be as large as Alberto, this system could bring additional rain to South Texas and trigger new flooding concerns along the Gulf Coast.
The heat wave is also intensifying wildfire risks in California, where firefighters are battling the Sites Fire, which has already consumed over 19,100 acres. High temperatures between 100 and 106 degrees are expected to complicate firefighting efforts.
In the Midwest, Iowa Governor Kim Reynolds issued a disaster proclamation for 21 counties in response to what she termed "catastrophic flooding." The town of Rock Valley has begun evacuating residents north of Highway 18 due to rising floodwaters.
The combination of extreme heat and recent wildfires is creating additional hazards in some areas. In New Mexico, a flash flood warning was issued for Ruidoso and other areas affected by the South Fork Fire, as rain falling on fire-scarred ground increases the risk of flooding.
New Mexico authorities report that at least two people have died and 1,400 structures have been destroyed in recent wildfires. The mayor of Ruidoso expressed concern about potential additional fatalities, stating that dogs are being brought in to assist in the search for "more loss of life."
As the heat wave intensifies and expands this weekend, health officials are urging residents to stay hydrated, seek air-conditioned spaces, and check on vulnerable neighbors. The prolonged nature of this heat event poses significant risks, particularly for those without access to cooling resources.