LIRR service is suspended Thursday on the Port Washington and Oyster Bay branches because of downed trees and power lines due to heavy rains and strong winds.
Additionally, the 3:11 p.m. train from Ronkonkoma due at Penn Station at 4:34 p.m. will be held west of Deer Park because of a downed tree near the Pinelawn station.
As of 4 p.m., the Long Island Power Authority reported that about 24,000 customers were without power.
Radar at 2:48 p.m. showed a line of severe thunderstorms "capable of producing destructive winds in excess of 70 mph," the National Weather Service said.
A watch remains in effect until 8 p.m. for Long Island and several neighboring counties, the National Weather Service said Thursday afternoon.
Scattered showers and thunderstorms are likely Thursday afternoon, the service said, with damaging west-southwest winds around 16 mph. The chance of precipitation is 40 percent.
Some storms could be severe and temperatures could drop from the 90s to the mid-60s Thursday night. Winds between 8 mph and 10 mph with gusts up to 20 mph should come from the north northwest. Chance of precipitation is 30 percent.
Sunny skies are expected Friday.
Forecasters are predicting a chance of showers and thunderstorms both Saturday and Sunday with temperatures in the low-to-mid 80s - and significant humidity.
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