In New Jersey, a main route leading into the beach resort of Wildwood was closed and school was canceled due to flooding. A tree that fell on train tracks halted rail service along the Jersey shore for part of the morning commute, and a similar incident delayed suburban Philadelphia commuters.
Northeast airports reported delays ranging from one to four hours.
Forecasters issued several weather advisories and warnings for much of the state as a storm system pelted Delaware with heavy rains and high winds.
A tornado watch that was issued statewide expired at noon Friday, but a coastal flood advisory remained in effect until early Friday evening. There were no reports of coastal flooding Friday morning.
A flash flood watch was in effect for New Castle County in northern Delaware, and the National Weather Service issued a flood warning for the Christina River at Cooch's Bridge.
Delmarva Power reported about 1,000 customers in New Castle County were without service Friday afternoon.
State monitoring stations showed 24-hour rainfall totals ranging from 2.8 inches in Dover and Georgetown to 3.4 inches at the Rehoboth Beach boardwalk