Autumn-like air to chill Great Lakes to northeastern US into the weekend
By Jordan Root, AccuWeather meteorologist
September 07, 2017, 12:48:42 PM EDT
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Autumn may officially be more than two weeks away, but some folks will get an early taste of it into the weekend.
Temperatures will be closer to those typical of early October, according to AccuWeather Meteorologist Jake Sojda.
After plunging across the Plains and Midwest early this week, the cooler air arrived over the Tennessee Valley and Deep South at midweek.
The passage of the cold front may trim daytime highs by 15 to 25 degrees Fahrenheit in many cities compared to the day prior.
Minneapolis, Chicago, St. Louis and Kansas City experienced a sharp drop in temperature and humidity on Tuesday. Cities farther south and east such as Little Rock, Arkansas; Nashville, Tennessee; Atlanta and Houston will feel the drop through Thursday.
The cooler, less humid conditions arrived in the Northeast on Thursday and will remain in place through the weekend.
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Air conditioners that may have been running the past few days can be shut off as the cooler air will allow for windows to be opened during the daytime.
The sharp change will force people to dig out clothes more appropriate for autumn, such as long-sleeve shirts, jackets and sweatshirts, especially during mornings and at night when it will be chilly.
While most areas will turn dry behind the front, clouds and a few showers will be possible across the Great Lakes and interior Northeast through Friday.
A few of the showers over the Great Lakes could even spawn waterspouts. Boaters will need to exercise caution. While the majority of waterspouts generally form and dissipate over water, they sometimes can spin onshore and cause minor damage.
Those along the East Coast will also have to keep track of Hurricane Irma as it tracks westward closer to the U.S. into this weekend. Rain from Irma may reach the mid-Atlantic and Northeast next week.
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