Forecasters said Long Islanders can expect a little bit of rain Thursday morning and a windy Valentine's Day. Credit: Newsday

A mix of snow, sleet and freezing rain is expected to make for hazardous and slippery conditions on Long Island's roadways Wednesday night and potentially continuing through Thursday's morning rush hour.

The wintry mix is expected to begin falling in Nassau County around 7 p.m. on Wednesday, moving west to east toward Suffolk County, said Bryan Ramsey, a meteorologist with the National Weather Service in Upton.

Long Island, Ramsey said, is not expected to see any measurable accumulation, with the forecast late Wednesday and early Thursday switching to all rain with temperatures in the upper 20s and lower 30s.

The Weather Service advised travel during the storm could be hazardous on untreated and elevated surfaces.

"It will transition to all rain and to stay that way into the morning tomorrow, until it clears out around midday," he said.

A winter weather advisory is in effect until 9 a.m. Thursday when temperatures will slowly rise above freezing. A cloudy day follows Thursday, with a high near 47, forecasters said.

The storm is the second round of back-to-back weather events on Long Island.

Snow arrived Tuesday evening on the Island, dropping just over 3 inches in parts of Suffolk and nearly 2½ inches on parts of Nassau's South Shore, according to Weather Service totals.

Many school districts and private schools opened with a two-hour delay on Wednesday.

Friday's forecast calls for dry, cold conditions.

Then, a new system Saturday could start as snow and turn into a mix of rain and snow in the evening. The precipitation will continue through Sunday morning, forecasters said.

With Robert Brodsky

On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra talks with Dunia Sibomana-Rodriguez about winning a 3rd state title and possibly competing in the Olympics in 2028, plus Jared Valluzzi has the plays of the week. Credit: Newsday/Steve Pfost

Sarra Sounds Off, Ep. 17: Olympics a possibility for Long Beach wrestler? On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra talks with Long Beach wrestler Dunia Sibomana-Rodriguez about pursuing a third state title and possibly competing in the Olympics in 2028, plus Jared Valluzzi has the plays of the week.

On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra talks with Dunia Sibomana-Rodriguez about winning a 3rd state title and possibly competing in the Olympics in 2028, plus Jared Valluzzi has the plays of the week. Credit: Newsday/Steve Pfost

Sarra Sounds Off, Ep. 17: Olympics a possibility for Long Beach wrestler? On the latest episode of "Sarra Sounds Off," Newsday's Gregg Sarra talks with Long Beach wrestler Dunia Sibomana-Rodriguez about pursuing a third state title and possibly competing in the Olympics in 2028, plus Jared Valluzzi has the plays of the week.

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