Winter Weather Advisory Issued for Friday, Snow Total Estimates Rise Throughout Lower Hudson Valley

A surprise snow event could be in the works for Rockland, Putnam and Westchester counties.

The National Weather Service has issued a Winter Weather Advisory from 1 a.m. to 10 a.m. Friday.

Bill Potter of HudsonValleyWeather.com said the timeline is for the snow to start from south to north between midnight and 3 a.m.

Moderate to heavy snow is expected to fall near and south of I-84 from 3 a.m. to 8 a.m., with snow tapering from west to east between 6 a.m. and 10 a.m.

Potter said a frontal boundary stalled off the east coast.

“A piece of energy is going to interact with that boundary Thursday night,” he said. “This will form a coastal storm east of Virginia. The latest data on Thursday has begun to identify how much moisture is available off the east coast … and is now supporting the idea that the snow pushes into the Hudson Valley.”

And the accumulations are a mixed bag.

The National Weather Service is now saying New City, Peekskill and Yorktown can expect up to 4 inches of snow by the time it ends Friday morning, with White Plains, Bedford, Brewster and Rye getting up to 5 inches.

Map: Accuweather.com