Cooler days ahead? Major shift coming to the Northeast
Looking for a break in the heat and humidity? There is some good news for millions across the Northeast due to an upcoming shift in the weather pattern. Some spots could even have lows in the 30s.
AccuWeather Long-Range Expert Joe Lundberg looks ahead to next week. Rounds of storms are expected to occur from the Dakotas to the Ohio Valley while dangerous heat is forecast to bake the Plains.
A weak push of cool air will broke the heat surge in the Northeast this past weekend and will be followed by a much bigger outbreak of cool air this week from the Great Lakes to New England and the mid-Atlantic, AccuWeather meteorologists say.
A massive bulge in the jet stream allowed some cool air to seep southward this weekend in New England. High temperatures were shaved by 10-20 degrees Fahrenheit.
Through the middle of the week, hot and humid conditions will return to the Northeast with daily high temperatures well above average.
Along the Interstate 95 corridor, records are expected to be challenged each day. The nights will provide little relief for those looking for a break from the heat as overnight lows only dip into the upper 70s.
The core of extreme heat will stay primarily in the Southeast states through midweek, yet the regime of very warm to hot and humid conditions occuring across the Northeast will favor thunderstorms. Some of the thunderstorms that rumble from the northern tier of the Plains through the Great Lakes region are likely to be severe.
As the core of the heat shifts westward to the Plains and Rockies, cooler air from central Canada will have an easy time moving southward to the Great Lakes and especially the Northeast states.
With the big cool push later this week, locations such as Philadelphia, Washington, D.C., and Pittsburgh should experience temperatures slashed by 10-20 degrees. Places in northern New England and New York may get some nights where temperatures dip into the 40s and even the upper 30s.
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The end result could be at least a few days when temperatures hover several degrees below the historical average for late July and early August. Typical highs range from the upper 70s and low 80s in northern New England to near 90 around the Chesapeake Bay.
Humidity levels will be slashed significantly as well across New England and the mid-Atlantic.
Some reduction in heat and humidity will also be possible in parts of the Southeast during the first weekend of August.
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