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The ongoing heat wave across the northeastern United States may be especially taxing on residents since there has not been such a stretch of temperatures this high since 2016, and in some cases even longer.
Days of highs in the 90s F with dangerously higher AccuWeather RealFeel® Temperatures are expected to grip many communities in the Northeast through at least July Fourth.
The sweltering conditions will continue at night, especially in the major urban areas where temperatures may not fall below the middle or upper 70s.
"The vast expanse of concrete, pavement and brick will give off heat through the night," AccuWeather Senior Meteorologist Alex Sosnowski said.
The added strain of dealing with days of heat and humidity can lead to higher energy costs and an increasingly greater threat of residents suffering heat-related illnesses.
As the heat also encompassed southern Ontario and the St. Lawrence Valley, CBC News reported that more than 100 people were treated for heat-related issues at Canada Day events in Ottawa.
"It will not only be very hot, but it may also be perceived as relentless for many people in the Northeast as the heat lingers into the first part of July," AccuWeather Long-Range Meteorologist Paul Pastelok said.
"Last summer, the longest stretch of 90-degree days was mostly in the four- to five-day range for areas north of the Mason-Dixon Line," he said.
This heat wave can range from six to eight days in some communities.
A heat wave across the northern tier of the U.S. is defined as three consecutive days of highs at or above 90 degrees Fahrenheit.
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The longevity of the unfolding heat wave can rival the hot spells from 2016 in some communities. In other communities, such a prolonged heat wave has not occurred since the early years of this decade.
Philadelphia recorded a heat wave that spanned eight days in 2016, but New York City has not endured consecutive 90-degree highs for a week straight since 2013.
Heat has now come back with a vengeance.
Philadelphia has joined some other communities in recording highs within a few degrees of the century mark.
"Temperatures have not reached 100 F in Albany since 1953," AccuWeather Meteorologist Tony Zartman said. "They fell a few degrees shy of that mark on Sunday and Monday."
The high was 97 in Albany on Sunday and Monday.
Boston officially experienced its first heat wave of the year on Sunday as temperatures soared to 92.
Sweltering humidity will create dangerous AccuWeather RealFeel® Temperatures in excess of 100 F throughout the Northeast.
Sea breezes will help to keep some of the beaches cooler.
Tips to follow to avoid heat exhaustion and stroke
"People of all ages, regardless of their health and physical activity, indoors and out, will need to stay hydrated," Sosnowski said. "Intake of alcoholic beverages should be limited, especially when there is no means to keep cool, such as in air conditioning."
Wear loose and light-colored clothing and avoid strenuous activities during the midday and afternoon hours -- the hottest times of the day. For those whose jobs require physical outdoor labor, be sure to take frequent breaks.
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As the heat extended its grip on the Midwest, three players of the Minnesota Twins baseball team had to leave the game at the Chicago Cubs' Wrigley Field due to heat-related illnesses on Saturday, according to the MLB.
Ensure that the elderly, children, homeless and pets are finding ways to stay cool. Remember never to leave a child or animal in a sealed vehicle without air conditioning even for a short time. Vehicles can become dangerously hot in a matter of minutes.
At least six people have died in Montreal since Friday as a result of the extreme heat, according to CBC Montreal.
Residents at Inglemoor Rehabilitation and Care Center in Englewood, New Jersey, were exposed to the sweltering heat on Monday, July 2, when the air conditioning went down, according to NorthJersey.com.
The building was evacuated on Monday afternoon when the HVAC system went out of service, Englewood Fire Chief Erik Enersen said.
No one was injured or became ill because of the heat, Inglemoor spokeswoman Christine Emrick told NorthJersey.com. About 50 patients were evacuated and taken to other Inglemoor centers.
DEVELOPING: The Inglemoor Center nursing home in #Englewood is being evacuated due to a lack of air conditioning. Residents are being transported away by Bergen County EMS Task Force. We'll continue to bring all the latest details on @FiOS1NewsNJ. pic.twitter.com/DSTCxKbmFn— Stephen Milewski (@TheSkiReport) July 2, 2018
New Jersey Rep. Bill Pascrell, D-Paterson, was escorted from the fire headquarters in Englewood, New Jersey. Pascrell nearly collapsed during a news conference to announce legislation on Tuesday, July 3, according to NorthJersey.com.
"Cooling stations will be warranted as heat builds to dangerous levels in the urban areas of the major cities," Sosnowski said. "Air stagnation and poor air quality are a concern with this heat wave."
There is a risk of brownouts due to higher energy demands. Help conserve electricity by turning off fans and air conditioners when leaving home.
Spotty afternoon thunderstorms will occur over parts of the Northeast each day into Independence Day.
Thunderstorms that erupted in northern New Jersey during Tuesday afternoon caused strong wind gusts and frequent lightning strikes. There were multiple reports of trees that fell onto vehicles.
Most of the thunderstorms into Wednesday should occur during the afternoon and diminish prior to July Fourth fireworks shows.
Cooler and less humid air is scheduled to sweep southeastward from Canada spanning late Thursday to Saturday.
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