The D.C. region is under a Flash Flood Watch until 10 p.m. Friday, with the possibility of 2 to 4 inches of rain and isolated totals of up to 6 inches in spots.
The WTOP Weather Center will have updated forecasts, and follow WTOP Traffic on Twitter for reports of high water on area roadways and any other traffic problems.
RALEIGH, N.C. (AP) -- The first named storm of the Atlantic hurricane season drenched the Southeastern U.S. but caused no major damage on Friday, marching up the East Coast as it brought the threat of weekend flooding as far north as New England.
After bringing rain, strong winds and even tornadoes to Florida, Andrea was losing its tropical characteristics on Friday even as it still packed maximum sustained winds of 45 mph (72 kph).
It was blamed for one traffic-related death in Virginia.
As of 11 p.m. Friday, the National Hurricane Center in Miami had discontinued all tropical storm warnings. The remnants of Tropical Storm Andrea were about 30 miles (48 kilometers) south of Cape May, N.J., and the system was moving northeastward at 35 mph (56 kph)
The storm's low-level center was losing definition but remained a threat to the East Coast while "evolving into a low-pressure center," Darin Figurskey, a National Weather Service meteorologist in Raleigh, N.C., said early Friday evening.
Forecasters say Andrea could bring high winds, heavy rainfall, and localized coastal flooding through Saturday across the mid-Atlantic states and New England. Rainfall accumulations of 2 to 4 inches were possible along the Eastern Seaboard into coastal Maine, the hurricane center said. Winds near gale force were possible from New Jersey to Canada through Sunday.
Officials in the Mid-Atlantic region and Northeast were bracing for the storm Friday night. New York City activated its flash flooding plan, and heavy rainfall resulted in a number of flash floods, causing some sections of roadways to be closed throughout Long Island.
The weather service reported that small streams and creeks in southeastern Pennsylvania were going over their banks Friday night. New York City's airports experienced flight delays, and Connecticut reported numerous lane closures on highway as cars spun out amid heavy rain.
The rainy weather washed out events such as NASCAR's Sprint Cup qualifying and the Washington Nationals Friday night home game.
Authorities in Virginia blamed heavy rain from the storm's outer bands for a fatal accident on Interstate 77 in the state's western mountains. William Petty, 57, of Lexington, S.C., died when a car in which he was a passenger hydroplaned while passing a tractor-trailer. He survived the crash, only to be killed moments later when the car was struck by second tractor-trailer, authorities said.
During the morning rush hour in Charleston, S.C., there was little evidence that the center of the storm was passing to the northwest beyond a few downed tree branches, gusty winds and some puddles in the street. The sun occasionally peeked through.
Derrec Becker with the South Carolina Emergency Management Division said the storm brought only a severe thunderstorm Friday. No injuries were reported, and there had been no reports of significant damage.
Mike Sprayberry of North Carolina Emergency Management told the Weather Channel that there had been some flash flooding and local road closures in the state but that "so far we have been quite fortunate."
Thousands of power outages were also reported.
Florida Gov. Rick Scott had warned Thursday of the risk of tornadoes, and officials said that eight were confirmed across the state.
Forecasters didn't expect major problems, however, along the most vulnerable parts of the coast such as North Carolina's Outer Banks, a popular tourist destination.
David Tweedie, 41, of Ocracoke, said an early-morning burst of rain and the forecast of another three hours or so of rain and wind on the Outer Banks island has done little to alter the day's routine for the roughly 1,000 year-round residents.
The Friday fish fry that kicks off the island's annual folk music and arts festival was moved indoors to the island's only public school, and a musical performance of the three-day event was shifted to the community center. But the tropical system was otherwise forcing no changes to the Ocrafolk Festival that normally draws more than 2,000 visitors, Tweedie said.
"The weather is looking pretty good for blowing out and for us having a good day tomorrow," said Tweedie, the festival coordinator.
Authorities in coastal Bertie County, N.C., said a school bus with 32 elementary students on board slid off the road and into a ditch about 8 a.m. No injuries were reported.
A Coast Guard cutter and HC-130 Hercules airplane were called to rescue four adults aboard a 35-foot sailboat about 65 miles off Charleston, S.C. The sailboat's engine was disabled during the storm and left rocking in 15-foot seas and 35-mph winds.
Beach vacationers were keeping a close eye on the storm.