The worst of a coastal storm with wind-whipped rain, especially strong during the overnight hours, is moving off Long Island, and clear, sunny conditions are ahead, the National Weather Service said Thursday.
The system that delivered as much as 2.5 inches of rain and wind gusts from 45 to 50 mph to the East End remains southeast of Long Island and should push out by early Friday, said Peter Wichrowski, a meteorologist with the service's Upton office.
Scattered showers are expected to continue across Long Island on Thursday, with winds from about 15 to 20 mph.
In Boston and areas north, the service referred to the storm as a nor'easter. But Wichrowski said although Nassau and Suffolk counties experienced some conditions of a nor'easter, it was more of a "deep coastal storm."
Still, winds 15 to 25 mph with gusts to 35 mph downed power lines and left as many as 2,100 customers without electricity Thursday morning, mostly in Suffolk, according to PSEG Long Island. The number had dropped to just below 1,000 at 11:30 a.m., then to about 650 by 1:30 p.m.
Western portions of Suffolk got up to an inch of rain and portions of Nassau about 1.5 inches, Wichrowski said.
A coastal flood statement was in effect until 1 p.m. for coastal areas bordering western Long Island Sound from western Suffolk to Westchester Counties, according to the weather service. An earlier coastal flood advisory expired at 11 a.m. for parts of Nassau and Suffolk.
The overnight rain slammed some trees and utility wires, according to Suffolk County police. Several roads were closed, including in Commack, where a car slammed into a tree near Veterans Memorial Highway and Jericho Turnpike, downing a power line.
Other road closures included Wolf Hill Road in Dix Hills, Adirondack Drive in Farmingville and secondary roads in East Moriches, Yaphank and Center Moriches, police said.
Nassau County police said they had received no reports of closed roadways because of weather conditions.
Early Thursday, wind conditions toyed with traffic at LaGuardia Airport, according to the Federal Aviation Administration. The agency's website said incoming flights to the Queens airport were averaging delays of about 90 minutes.
As the offshore system pushes north Thursday, there could be some lingering isolated storms, including a few as late as Friday morning, the service said.
Wichrowski said dry air is pushing in from the west and clearing should begin by early Friday. That translates into clear, mostly sunny skies for Saturday and Sunday and into early next week, with daily highs mostly in the low to mid 60s, he said.