By Alex Sosnowski, Expert Senior Meteorologist
July 25,2013; 8:29PM,EDT
An area of rain will continue along the East coast from Long Island to southeastern New England Thursday night into Friday.
Some communities could be thoroughly drenched. A few spots could be hit with flash and urban flooding.
While cooler, less humid air continued to expand over the Northeast Thursday, it will not be enough to prevent a swath of rain.
The cool pattern, with and without rain, in the Northeast will represent a big change from the heat and high humidity from last week. AccuWeather.com RealFeel® temperatures in some areas with the rain may be more than 30 degrees lower, when compared to the heat, sunshine and high humidity recently.
Around Norfolk, Va., an inch of rain fell in about an hour early Thursday morning. Rain caused flash flooding in Norwichtown, Conn., during the afternoon. Similar rainfall and flooding could occur around Boston and coastal Maine late Thursday into early Friday.
Dry air is forecast to chase the rain away over much of eastern Virginia, the Delmarva Peninsula and New Jersey and southeastern New York during Friday. However, rain may continue farther to the northeast along the coast.
The rain is likely to stay away from much of the area from central Virginia and West Virginia to Pennsylvania, upstate New York and northwest New England Thursday and Friday, before returning later in the weekend.
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According to Mark Mancuso, "There is a slight chance a very weak tropical system forms in the pattern along the Atlantic coast before the end of the week."
A system originating from the central Plains has taken a left turn along the East coast Thursday.
"The system will tap into tropical moisture as it reaches Atlantic waters and can bring very heavy rainfall in a narrow zone right along the coast," Mancuso added.
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