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Dense fog advisory in effect for Long Island Monday night into Tuesday morning

Commuters dodge raindrops at the Long Island Rail

Commuters dodge raindrops at the Long Island Rail Road station in Mineola on Monday, April 20, 2015. Credit: Howard Schnapp

The National Weather Service has issued a dense fog advisory for Monday night into Tuesday morning.

The advisory is in effect from 8 p.m. Monday until 6 a.m. Tuesday as "dense fog affects the South Shore around sunset and spreads north," causing visibilities to drop "one quarter mile or less at times," the weather service said.

Air travel was affected, with arrival delays averaging more than four hours at Kennedy Airport and nearly two hours at LaGuardia, according to the Federal Aviation Administration's website. Some departures there and at Long Island MacArthur Airport, were also affected, the FAA said.

Showers, some of them heavy, moved through Long Island earlier Monday, with wind gusts of 20 to 40 mph, and just over five-tenths of an inch of rain at Long Island MacArthur Airport, according to meteorologists and the weather service.

There's a chance of another round of showers, with possible thunderstorms, after 11 p.m., he said.

The temperature at the airport hit 54 degrees early in the afternoon, Pollina said.

Normal temperatures for this time of year are in the 55-to-60-degree range, said News 12 Long Island meteorologist Rich Hoffman.

Tuesday is expected to be mostly cloudy with gradual clearing and milder winds, from the west between 11 and 14 mph. Daily highs Tuesday are expected in the mid to upper 60s.

With Gary Dymski

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