Almost one week into spring, the National Weather Service is...

Almost one week into spring, the National Weather Service is predicting late-morning snow that could drop as much as four inches of new precipitation on Long Island. (March 25, 2013) Credit: NWS

Commuters should expect slippery road conditions and limited visibility early Monday as more than an inch of snow is expected to accumulate by 9 a.m., forecasters say.

The National Weather Service in Upton has issued a winter weather advisory from 6 a.m. until midnight, with the chance of 3 inches of snow, possibly more in some spots, landing by nightfall.

Monday's highs are expected to be in the mid- to upper 30s, with lows in the low 30s, said John Murray, meteorologist with the weather service.

The service also issued a coastal flood advisory from 6 p.m. to 2 a.m. Tuesday for southern Nassau County, northeastern Suffolk County, the South Shore, Brooklyn and southern Queens, according to weather officials. Only minor coastal flooding is expected, forecasters said.

As the storm develops throughout the day, there could be an even greater impact on the evening commute, forecasters said.

While it's unusual to have a snowstorm in early spring, it isn't unheard of, said Joey Picca, another meteorologist with the weather service. And because the sun angle is higher this time of year, the snow won't linger too long.

The rest of the week is forecast to have temperatures slightly below average for this time of year.

Tuesday's highs will be in the low to mid-40s, with lows in the low to mid-30s.

For Wednesday, Thursday and Friday, expect temperatures in the mid-40s, with lows in the mid-30s.

With Jennifer Barrios

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From celebrating America's 250th birthday to a new ride at Adventureland, NewsdayTV's Elisa DiStefano and Newsday lifestyle editor Meghan Giannotta have your inside look at Newsday's summer FunBook. Credit: Newsday/Howard Schnapp, Kendall Rodriguez, Drew Singh; Anthony Florio, Randee Daddona, Morgan Campbell, Debbie Egan-Chin

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