The South Shore of Long Island was hit with about 7 inches of snow that fell mostly overnight. Wind conditions can make drifts up to a foot.
Light snow was still falling on Friday and was expected to stop during the day.
The LIRR is on a weekend schedule with scattered delays. No service on the West Hempstead and Greenport branches as of 7 a.m. Friday.
The Long Island Expressway is closed until 8 a.m., although vehicles were seen driving on it before that.
The weather service reports minor coastal flooding.
PSEG, who took over from LIPA on Jan. 1, reports a handful of outages across Long Island, including Valley Stream and Garden City.
To report a power outage, call PSEG at(800) 490-0075 or report an outage online, on your smartphone or via text.Text OUT to 773454 or visit www.psegliny.com.
Temperatures on Friday are expected to be in the mid teens.