An area of rain will continue along the East coast from Long Island to southeastern New England through the day Friday.
Some communities could be thoroughly drenched. A few spots could be hit with flash and urban flooding.
While cooler, less humid air continues to expand over the Northeast, 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 into 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 Friday, before returning later in the weekend.
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 took 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.
Snow and spotty ice will swing across parts of the central and northern Plains to the Upper Midwest as November ends and December begins.
After the brief shot of chilly air this past weekend, the month of December will start out mild across the Northeast.
December will begin with a roar across the Northwest as rounds of rain, mountain snow and even ice are in store this week.
The reprieve from heavy rain across southern India will not last with the threat for flooding downpours set to return for the final day of November.
Tens of thousands will gather in rainy and mild conditions at 30 Rockefeller Plaza in New York City on Wednesday, Dec. 2, 2015, for the 83rd annual Christmas tree lighting.
Studies show that heart attacks increase in December and January each year.
Erie Canal (1831)
Coldest December ever closed Erie Canal.
Snow fell for 5 minutes in South Florida in the Ft. Myers area.
Eastern Maine (1964)
Down east blizzard 12-18" snow, accompanied by 60 mph winds; 8' drifts. Record snow from Detroit to Pittsburgh: Pittsburgh, PA 8.5" snow, most for date Akron-Canton, OH 24" snowstorm Dec. 1-2 - biggest snowstorm on record Detroit, MI Record 19.2" snow paralyzed city.