Searing heat across nation, reaching 100 degrees in some spots, takes its toll on events and roads – USA TODAY
As the temperatures start to heat up, make sure you are staying safe.
A relentlessÂ heat wave gripped the country from the central states to the East Coast Saturday, prompting cancellation of the New York City Triathlon and producing cracked and buckled roads in someÂ Plains states. Some East Coast cities braced for temperatures in the triple digits.
As the stiflingÂ heat â expected to affectÂ 200 million people â settled in for at least a fifth day, the National Weather Service issued an Excessive Heat Warnings and Heat Advisory from parts of the Â Texas Panhandle Â to the Ohio Valley, around the Great Lakes,Â parts of the Mid-Atlantic and in the Northeast.
An Excessive Heat Warning is issued when the combination of heatÂ and humidity is expected to make it feel like it is 105 degrees or greater.
Daytime temperatures in the mid to upper 90s or higher plusÂ high humidity will result in heat indices asÂ high as 115 for some, forecasters said.Â
Washington, D.C., Philadelphia, New York and Boston were bracing for weekend temperatures in the triple digits.Â New York City and Baltimore were under a Code Red Extreme Heat Alert that is expected to continue through Sunday.Â
“Itâs been since July of 2012 that Chicago and Philadelphia both hit 100 degrees, and Washington, D.C., hasnât hit 100 since August of 2016,” says AccuWeather Meteorologist Danielle Knittle.
In addition, forecasters warned that overnight temperatures were not likely to fallÂ far enough to bring relief,Â pariticularlyÂ in larger cities, likeÂ Â Chicago, St. Louis and New York City.
Cities in Vermont and New Hampshire openedÂ shelters where people couldÂ cool off.
The high heat took its toll across the country:
â¦In New York City, officials canceled Sunday’s New York City Triathlon. Likewise, Mayor Bill De Blasio scrappedÂ the two-day outdoor OZY Fest in Central ParkÂ featuring soccer star Megan Rapinoe, musician John Legend and âDaily Showâ host Trevor Noah.
De Blasio also Â directed owners of office buildings over 100 feet tall to set thermostats to 78 degrees FahrenheitÂ through Sunday to conserve energy.
â¢In Sioux Falls, South Dakota, traffic was back up along I-229 after a large section of road buckled under the heat.Â Traffic on the Interstate 229 southbound lanes was backed up Friday afternoon because a large portion of road buckled under the heat.
â¢In south-central Kansas, around Wichita, two roads also cracked this week as temperatures reachedÂ 100 degrees and higher.
âThe buckling is essentially caused by concrete, which is more rigid than asphalt, expanding to the point it breaks open at a weak point during hot weather,â said Tim Potter, a Kansas Department of Transportation spokesman, The Wichita Eagle reported. âSometimes, the pressure can cause concrete to explode into the air. The problem also can occur when asphalt is laid over concrete. The dark asphalt absorbs heat and can add to the pressure.â
â¢Wisconsin Gov. Tony EversÂ declared aÂ state of emergencyÂ after two fires broke out at electric substations in Madison, WISC reported. He said he issued theÂ declaration to “provide support during the large power outage that is exacerbated by the extreme heat wave affecting the area.”
The Weather Channel offers a bit of good news after the weekend: AÂ dip in the jet stream will spread from the upper Midwest on Sunday to the East Coast by Monday,ushering in cooler, drier air to much of the Plains, Midwest and East.
Contributing: Associated Press
The heat goes on:: Nights will provide little relief during brutal heat wave