Flood advisory expires in Suffolk

A severe thunderstorm warning and subsequent flood advisory have both been lifted for Suffolk County, but the threat of storms still remains Friday, the National Weather Service said.

Shortly before 1 p.m. thunderstorms moved northeast across northern Suffolk, the weather service said. More than an inch of rain was reported, forecasters said.

A severe thunderstorm warning expired at 12:45 p.m. because the storms slightly weakened, the weather service said. The flood advisory expired an hour later.

These storms come after a flood advisory issued Friday morning for northern Nassau and later western Suffolk was lifted at 11:30 a.m., the weather service said.

Between 1.5 inches and 2 inches of rain fell across that advisory area, and "excessive runoff" caused some minor flooding, the weather service said in a 10:42 a.m. advisory.

LaGuardia Airport was experiencing weather-related delays on arrivals about 90 minutes on average, according to the Federal Aviation Administration. Kennedy Airport was seeing arrival delays of 26 minutes. Departures and arrivals at Long Island MacArthur Airport were under 15 minutes, the FAA said.

Thunderstorms remain in the forecast Friday, with a few of them capable of producing "gusty or even damaging winds," the National Weather Service said in a hazardous weather outlook.

"An isolated tornado cannot be ruled out . . . especially during the morning hours," the weather service said in the outlook issued at 4:15 a.m.

Forecasters say expect periods of rain, with a southeast wind at 10 mph to 13 mph. The chance of rain is 90 percent, with a high temperature in the lower 70s.

There's also a high rip current risk in effect through Friday evening for Atlantic Ocean beaches, with the surf height 3 feet to 5 feet.

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