A massive and dangerous heatwave is set to engulf over 120 million people across the US, with scorching temperatures and high humidity expected to peak by Thursday, just in time for the Fourth of July holiday weekend.

The National Weather Service has issued extreme heat warnings for a large area of the country, stretching from the east coast to central regions, with temperatures ranging from 95F-105F and heat indexes reaching 100F-115F.

Heatwave Warning

The heatwave, caused by a heat dome, will affect approximately 250 million people, with the Midwest and Mississippi Valley expected to be the hardest hit, according to weather forecasters.

Daily temperature records are expected to be broken on Thursday and Friday, with some monthly and all-time records possible, prompting officials to warn people to limit time outdoors, stay hydrated, and ensure access to air conditioning or cooling centers.

New York City Mayor has activated a heat emergency plan, with hundreds of cooling centers set to open across the city, while Detroit, Michigan, has opened a dozen recreation centers with air conditioning for residents to cool down.

Impact on Daily Life

The intense heat may also impact the World Cup matches, with some games potentially having heat indexes exceeding the threshold considered too unsafe for play, affecting fans traveling to and from air-conditioned stadiums in Houston and Arlington.

Philadelphia is moving parts of its Fifa World Cup Fan Festival into cooled tents on Thursday and Friday, while Toronto, due to host a World Cup game on Thursday, has issued orange heat warnings, the second level of a three-tier alert system.

The heatwave serves as a reminder of the importance of taking necessary precautions during extreme weather conditions, and its broader significance lies in the need for continued awareness and preparedness to mitigate the effects of climate change.