The National Weather Service has issued a winter weather advisory for five Western New York counties, including Allegany and Cattaraugus. The advisory will be in effect from 1 a.m. to 1 p.m. Sunday.

According to the agency, periods of snow, sleet or freezing rain will result in slippery roads. Mixed precipitation is expected to produce ice accumulation of one-tenth to two-tenths of an inch and a total snow accumulation of an inch or less.

In addition to Allegany and Cattaraugus, the advisory applies to Chautauqua and Wyoming counties, as well as the southern portion of Erie County.

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Gov. Andrew M. Cuomo on Satutrday announced the deployment of state assets to regions of the state expected to be hit hardest in advance of the storm that is expected to bring heavy snow, sleet and freezing rain across many areas of the state beginning early Sunday and lasting into Monday evening's commute.

"This storm system has the potential to deliver a significant wintry mix of snow, sleet and freezing rain across much of the state, creating hazardous conditions on many roadways," Cuomo said. "We have state personnel and resources ready to help as needed, and I am urging all New Yorkers who are returning from their Thanksgiving trips to travel with caution and play it safe on the highways as they head home and then back to work and school on Monday."

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