Boston broke a daily record high temperature Sunday and New York City and Philadelphia may follow suit as an "extremely oppressive" heat wave intensified in the Northeast, leading to at least two heat-related deaths over the weekend.
More than 85 million Americans faced excessive heat warnings and advisories Sunday from the Southern Plains to the Northeast, according to a National Weather Service statement.
In New York City, the medical examiner's office confirmed one person died as a result of heat exposure Saturday. The person had heart disease and emphysema, which contributed to the death, the office said.
In Pennsylvania, a 73-year-old man died of heat-related complications Thursday, NBC Philadelphia reported, amid a stretch of 90-plus degree days for the state. Philadelphia could approach 100 degrees Sunday, a forecasted temperature that would break the three-digit mark for the first time in a decade.
Is there relief in sight? A cold front approaching the Northeast on Monday and Tuesday should bring some less oppressive temperatures, according to the National Weather Service, but there is also the possibility of severe weather in the form of thunderstorms and high winds.
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Boston and Philadelphia break daily heat record
Boston hit a daily record high temperature of 99 on Sunday afternoon, breaking the previous record of 98 set in 1933, according to the NWS. Providence, Rhode Island, also broke its daily record Sunday, reaching a high of 96 and surpassing the previous record by two degrees.
Philadelphia reached 99 degrees, breaking its 11-year-old heat record of 98, the New York Times reported.
Albany International Airport in New York's capital city already broke a daily heat record on Saturday, reaching 97 degrees and surpassing a daily record set in 1933, 1952 and 1955.
Newark, New Jersey, also reached a daily record temperature high and recorded the fifth day in a row of temperatures in triple digits — the longest streak since records began in 1931.
Several major metros throughout the Northeast have put excessive heat measures into effect in attempt to keep residents cool. Philadelphia extended its heat health emergency declaration through Sunday, sending workers to check on those who are unhoused and other vulnerable residents.
Relief on the horizon for the Northeast
By Monday and Tuesday, an approaching cold front should help cool down the Great Lakes and the Northeast soon after, the National Weather Service predicts.
"As we head into the day tomorrow, it's kind of the transition day," Chenard said. "So it will still be warm to start, but then we'll actually see some thunderstorms during the day tomorrow, which should cool things off but also bring the threat of some severe weather to the region."
Residents in some cities can take advantage of cooling centers and other programs to stay safe, especially as the urban heat island effect exacerbates the hottest weather in urban areas.
While this week marks one of the most intense and long-lasting heat waves of the summer so far, the past six months weren't particularly mild overall. The first half of 2022 ranked the sixth warmest on record, according to the National Oceanic and Atmospheric Administration.
Contributing: Celina Tebor, USA TODAY; The Associated Press
This article originally appeared on USA TODAY: Northeast heat wave could break records in New York City, Philadelphia