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Stifling heat, humidity to surge into northeastern US Friday

By By Alex Sosnowski, AccuWeather senior meteorologist.
July 24, 2016, 3:55:05 AM EDT

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Some of hottest weather of the summer will affect part of the northeastern United States into this weekend.

After punching eastward across the Ohio Valley and Great Lakes on Thursday, oppressive heat and humidity will extend toward the mid-Atlantic coast on Friday.

"Hot weather is no stranger to July, but 100-degree Fahrenheit heat in July has been relatively uncommon from Chicago to New York City so far this century," according to AccuWeather Chief Meteorologist Elliot Abrams.


"In New York Central Park, the only 100-degree July daily heat records were set on two days in 2010 and two days in 2011," Abrams said.

Patchy cloud cover and a round or two of thunderstorms will likely prevent 100-degree readings in much of the Northeast with the upcoming episode of heat.

While actual temperatures will stop short of the century mark in most of the Eastern states this time, daytime temperatures will surge well into the 90s from Virginia and West Virginia to parts of New York and Massachusetts. Highs well into the 80s are in store for northern New York state, Vermont, New Hampshire and Maine.

Metro areas including New York City, Philadelphia, Pittsburgh, Baltimore, Washington, D.C., and Richmond, Virginia, can expect a heat wave with at least three days in a row of 90-degree highs.

The combination of extreme temperatures, high humidity, strong July sunshine and other factors will push AccuWeather RealFeel® Temperatures to dangerously high levels for some individuals.


RealFeel Temperatures will range from 100 to 110 for several hours in urban areas through Sunday in the mid-Atlantic.

Most at risk will be the elderly, young children and people with respiratory and/or cardiovascular problems. However, anyone who overdoes it in the heat can succumb to dehydration, heat exhaustion or heat stroke.

Be sure to drink plenty of non-alcoholic, non-caffeinated fluids. When possible, take breaks from the heat in the shade or air conditioning.

"While the heat will throttle back a bit next week, temperatures and humidity levels will probably not come down in the mid-Atlantic like earlier this summer," according to AccuWeather Lead Long-Range Meteorologist Paul Pastelok.

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Northeast interactive radar

There will be a slight reduction in temperature and humidity levels, with the greatest drop expected in areas that will be bypassed by the most extreme heat in the first place: upstate New York and New England.

"For much of the mid-Atlantic, we are entering a long stretch of typical hot and humid weather that will live up to the phrase 'dog days of summer,'" Pastelok said.

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