Northeastern US: Storms to ramp up by midweek before welcome dry sweep

The northeastern United States will be treated to an even stronger push of refreshing air later this week but not before drenching thunderstorms ramp back up across the region by midweek.

While stubborn clouds and drizzle may hang on in some communities, a wedge of dry air will limit showers and thunderstorms to a small fraction of the Northeast on Monday.

The coastline from Cape Cod, Massachusetts, to New Jersey and the Delmarva Peninsula are among the few places where a shower can put a damper on the day. Even if no rain falls, lingering clouds, a stiff breeze and choppy seas will make the day less than ideal for beachgoers.

Summer weather across the US in 2018
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Summer weather across the US in 2018
NEWPORT BEACH, CA - AUGUST 17: A man and his nephew enjoy the warm water at Salt Creek Beach in Dana Point on Friday, August 17, 2018. (Photo by Paul Bersebach/Orange County Register via Getty Images)
NEW YORK, NY - AUGUST 17: People cool themselves during a warm day at Central Park on August 17, 2018 in New York City. Severe thunderstorms and even an isolated tornado could strike New York City on Friday. (Photo by Eduardo Munoz Alvarez/Getty Images)
WEEHAWKEN, NJ - AUGUST 17: A man takes a look of the haze over the New York skyline and One World Trade Center on August 17, 2018 in Weehawken, New Jersey. Severe thunderstorms and even an isolated tornado could strike New York City on Friday. (Photo by Eduardo Munoz Alvarez/Getty Images
NEWPORT BEACH, CA - AUGUST 10: A surfer loses it on a wave in Newport Beach on Friday, August 10, 2018. A swell from Hurricane John will bring larger waves to south-facing beaches through the weekend. (Photo by Paul Bersebach/Orange County Register via Getty Images)
A man sunbathes on Venice Beach in Los Angeles, California on August 7, 2018. Temperatures climbed to near 100 degrees as a week-long heat wave continues in Southern California. (Photo by Ronen Tivony/NurPhoto via Getty Images)
WELLFLEET, MA - JUNE 21: Mark Wilke and his wife Sharon enjoy the first day of summer at White Crest Beach in Wellfleet, MA on June 21, 2018. (Photo by Craig F. Walker/The Boston Globe via Getty Images)
ARLINGTON, VA - JUNE 20: A pedestrian passes near the Netherlands Carillon as the Washington Monument and United States Capitol are seen at sunrise on Wednesday June 20, 2018 in Arlington, VA. The summer solstice is Thursday. (Photo by Matt McClain/The Washington Post via Getty Images)
Pedestrians watch sailboats and windsurfers on the Charles River on the summer solstice in Boston, Massachusetts, U.S., June 21, 2018. REUTERS/Brian Snyder
A women keeps in the shade of her umbrella as she tries to beat the heat at Cardiff State beach in Encinitas, California, U.S. July 6, 2018. REUTERS/Mike Blake
A man cools off in fountain on the Rose Kennedy Greenway during a summer heat wave in Boston, Massachusetts, U.S., July 2, 2018. REUTERS/Brian Snyder
OLD ORCHARD BEACH, ME - JULY 4: Ryan Parsons, left, of Unity watches as his daughter, Lily, 10, rides the waves on her inflatable whale at Old Orchard Beach on a hot, beautiful Fourth of July. The Parson family was spending the day at the beach keeping cool and watching the fireworks. (Staff photo by Jill Brady/Portland Press Herald via Getty Images)
NEW JERSEY, USA - JUNE 30: People enjoy Manhattan skyline at the Hamilton Park during the hot weather in New Jersey, United States on June 30, 2018. (Photo by Atilgan Ozdil/Anadolu Agency/Getty Images)
NEW YORK, July 2, 2018 -- People cool themselves at a fountain at Washington Square Park in New York City, the United States, on July 2, 2018. The highest temperature reached 35 degrees Celsius in New York City on Monday as a result of a prolonged heat wave. (Xinhua/Wang Ying via Getty Images)
NEW YORK, USA - JULY 23: Rain clouds are seen over Lower Manhattan in New York, United States on July 23, 2018. (Photo by Atilgan Ozdil/Anadolu Agency/Getty Images)
NEW JERSEY, USA - JULY 27: People walk with their umbrellas during a rainy day at the Liberty State Park in New Jersey, United States on July 27, 2018. (Photo by Atlgan Ozdil/Anadolu Agency/Getty Images)

Places ravaged by flooding and residents tired of having outdoor plans spoiled can anticipate more dry than wet days this week, but a storm approaching from the Midwest is expected to put the brakes on the drying trend for Tuesday into Wednesday.

Humidity levels can once again surge as showers and thunderstorms sweep from west to east across the region.

As has been the case recently, there will be downpours that can trigger areas of flash flooding where the heavy rain repeats and/or falls onto a ground that is overly saturated. Downpours may be most numerous around the Appalachians.

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AccuWeather meteorologists are also concerned for thunderstorms to become strong with damaging winds around the central Appalachians on Tuesday afternoon and evening.

The Little League World Series in Williamsport, Pennsylvania, is among the sporting events that can be disrupted by the storminess.

Download the free AccuWeather app to stay aware of flooding, severe weather and lightning dangers. Remember that as soon as thunder is heard, the risk of being struck by lightning is present. A man killed on Long Island on Saturday evening was New York's first lightning death since 2016.

Behind this period of wet weather, residents can look forward to even nicer conditions than what the dry days earlier in the week will offer.

"A welcome change will take place at the end of the week as a large high pressure takes control of the pattern," AccuWeather Long-Range Meteorologist Max Vido said.

Thursday and Friday may feature a sky no worse than partly sunny, low humidity and dry weather spanning the Great Lakes, New England and mid-Atlantic.

It will be comfortable for construction crews, farmers, sports teams and anyone else heading to a county fair or enjoying outdoor activities. However, fields may still be too wet for tractors or heavy equipment to drive through.

Neighborhoods across most of the Northeast may be abuzz with the sound of lawnmowers or the smell of grills.

Those who get chilled easily may need a light jacket or long-sleeved shirt at night.

"With the drier air in place, nighttime low temperatures across the Northeast are forecast to drop to values not experienced since July," Vido said. "Wednesday and Thursday night, lows can be in the lower to mid-50s across the interior and in the lower to middle 60s along the I-95 corridor."

Temperatures may even dip into the 40s in the coolest locations.

Vido encourages everyone in the Northeast to take full advantage of the late week weather.

"Thursday and Friday may be the best opportunity to turn off the air conditioning and open up windows this month," he said. "By next weekend, an uptick in temperatures and humidity will revert the region back to the August status quo."

If the high does not hold firm, showers and thunderstorms may encroach back on the region next weekend, and Vido anticipates more stormy days than dry to close out the month.

"The AccuWeather Long-Range team expects warm and humid weather to continue in the Northeast into the last week of August with multiple chances for more rain," he said.

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