Winter Weather Advisory, Hazardous Outlook Issued for Putnam County

The National Weather Service has posted a Winter Weather Advisory for Putnam, Rockland and northern Westchester counties for a storm that could last all day Sunday.

Now this snowfall's is forecast to be worse to the north, unlike Thursday's storm — the National Weather Service Albany NY has issued a Winter Storm Watch for Delaware, Columbia, Greene, Ulster and Dutchess counties.

The storm will develop into a major nor'easter, but not till it's moving out of the region, said Bill Potter of Hudson Valley Weather. "The Hudson Valley will miss out on the major nor’easter impacts, but parts of the area could still experience 6″ or more of snow and sleet… and see some strong winds as the storm departs."

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The dividing line looks to be, as usual, I-84....but that could change, Potter said.

"Depending on how much cold air can filter into the valley, will determine how many of us see mostly snow, and how many of us see a mix of snow and sleet… and even some rain," he said.

The NYS advisory for Rockland, Putnam and northern Westchester says:

• Hazard Types...Snow and ice accumulation
• Snow and Ice Accumulations...2 to 4 inches of snow, with up to a tenth of an inch of ice accumulation.
• Timing...Beginning late tonight, continuing Sunday and ending Sunday evening.
• Impacts...Hazardous/slippery travel due to snow and ice accumulations.
• Temperatures...Upper 20s to the lower 30s.
• Visibilities...1/2SM or less at times in snow.