A winter storm warning is in effect for Otsego County, New York, until 1 p.m. Friday, Nov. 13. The National Weather Service in Binghamton warned of slippery roads during the Friday morning commute after heavy snow fell across higher elevations Thursday night.

In its 9:44 p.m. Eastern warning, the weather service reported 6 to 10 inches of snow above 2,000 feet. Forecasters expected another 2 to 5 inches above 1,500 feet. Those figures apply to the elevations listed in the warning. Snowfall can vary between valley roads and higher stretches of the same trip.

The weather service said heavy snow was sticking to trees and had already caused power outages. Forecasters expected additional outages overnight as snow continued. The warning did not give a countywide outage count.

Check roads before the Friday commute

Look up your route on the state's 511NY map and turn on the Winter Road Conditions layer. You can also call 511. New York's Department of Transportation says the map includes winter travel information by region. The weather service advises people who must travel to carry a flashlight, food and water in case they get stranded.

For an outage, check the map for the utility listed on your bill. Otsego Electric Cooperative and NYSEG each post outage information and accept reports. Otsego Electric says its map can lag as crews assess damage or restore service.