[UPDATE] Winter Storm Warning in Effect until Sunday at 6 a.m.

By Gary Jeanfaivre

Update: A Winter Weather Advisory is in effect until 6 a.m. Sunday. 

The National Weather Service has issued a Winter Storm Warning of heavy snow on Saturday into Sunday. 

Accumulation of 4-8 inches is predicted in some parts, with up to a quarter-inch of ice to top it off from sleet and freezing rain expected overnight.

A Winter Storm Warning for heavy snow means severe weather conditions are expected, and significant amounts of snow will make travel dangerous. 

The NWS says don't travel unless it's an emergency and if you must travel, have an extra flashlight, water and food in your car. 
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There's a storm heading our way.

Meteorologists are predicting that it will arrive Saturday morning with a dusting of snow. It could change to a messy wintry mix, depending on if this bitter cold we're experiencing holds tight or whether this southern storm pushes it back up north. 

But the storm also has the potential to bring heavy accumulations, according to an AccuWeather forecast by their expert senior meteorologist Alex Sosnowski.

"While warmer air and rain will move up with that storm, odds favor an extended period of snow Saturday afternoon into Saturday night," Sosnowski writes. "Roads are likely to be slippery."

He goes on to note, "The track and strength of the storm as it nears the coast will determine how heavy precipitation becomes Saturday night into early Sunday. If the storm were to develop to its full potential, a heavy accumulation of snow is likely with major travel disruptions."

NBC Meteorologist Bob Maxon predicts "light snow with a heavier wintry mix likely by evening and at night" on Saturday. 

The National Weather Service is also forecasting snow and a wintry mix for Saturday into Sunday—with a 80 to 90 percent chance of precipitation.

In a Hazardous Weather Outlook issued for all of Westchester, the NWS writes:

"Low pressure moving across the Ohio and Tennessee Valleys on Saturday will merge off the Mid-Atlantic coast Saturday night ... and pass southeast of Long Island on Sunday. The low could bring significant snowfall during this time ... and possible a glaze of ice late Saturday night into Sunday morning to inland sections."

"The highest snowfall amounts are expected inland northwest of New York City," according to the weather service.

Check the window above for weather updates throughout the day.