The National Weather Service in Buffalo has issued a winter weather advisory for parts of New York state, effective at various times Friday morning.

New York winter weather advisory issued

Affected areas include: Erie, Niagara, Orleans, Monroe, Genesee, Wyoming, Livingston, Chautauqua, Cattaraugus and Allegany Counties. Valid from Friday to Saturday morning; and Wayne, Northern Cayuga and Ontario Counties. Valid from Friday to Saturday night.

How much snow will there be in northern New York?

Total snow accumulations of 4 to 7 inches are expected in affected regions.

Travel conditions are affected

• The roads become snowy and slippery.

• Travel conditions are expected to worsen, particularly during the commute this evening and into Saturday.

• Limited visibility makes driving dangerous.

Snow Forecast Map: View snowfall forecasts by day

The map below shows the likelihood that an area in the US could receive more than 4 inches of snow. See forecasts for New York. Use the slider in the top left to toggle between day and day.

Weather warnings and watches around New York and the USA

National Weather Service Radar: Track the storm

This article originally appeared on the Rochester Democrat and Chronicle: Winter weather warning for New York. Check out the latest snow forecasts