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Long Island weather: Winter weather advisory for Sunday

A large plow/salt truck is prepped at the

A large plow/salt truck is prepped at the NYSDOT Melville Maintenance Residency Thursday, Jan. 5, 2017. Credit: Barry Sloan

A winter trifecta — snow, sleet and freezing rain — will strike Long Island just after midnight and linger until noon Sunday, the National Weather Service said.

The Upton-based NWS issued a winter weather advisory, warning of snow, ice and poor visibility that could imperil travelers, though — unlike with Thursday’s blizzard — scant accumulations are expected.

The new front, arriving about 2 a.m., should bring about an inch of snow, and “a few hundredths of an inch of ice,” the weather service said.

It’s another speedy reversal for Mother Nature, which allowed temperatures to climb on Saturday, encouraging a little of the Thursday’s snowfall to melt.

Long Islanders may even see “a few hints of sun” Saturday afternoon, and the daytime high was expected to reach 43 degrees, a touch above normal, said Matt Hammer, a meteorologist with News 12 Long Island. The average high for this time of year is 40 degrees, Hammer said.

The rain on Sunday coupled with melting snow could cause “big time puddles” to form on the roadways and elsewhere, Hammer said.

After Sunday’s dismal start, a new hazard could put in an appearance.

“But behind that, we’ll have a period of very windy conditions late Sunday into Monday,” said David Stark, a NWS meteorologist.

A storm developing off the New England coast, which won’t impact Long Island directly, will push strong winds in the Island’s direction, with gusts up to 45 to 50 mph persistently through the day Monday, he said.

The NWS said it had issued “a gale watch” for the Long Island Sound, bays and New York Harbor, starting early Monday morning and lasting most of the day.

Once again, Monday’s temperatures likely will revisit the lower 40s, Stark said, and it should remain dry.

Tuesday also should be dry with mostly sunny skies and temperatures in the upper 30s, Hammer said. On Wednesday, a clipper system will “spark a few flurries or snow showers,” according to Hammer.

“There’s been a lot of chatter about a big-time snowstorm headed to us on Thursday,” Hammer said. “There could be something there, so we have to watch out for possibly some snow on Thursday.”

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