Dec. 25 (UPI) -- A winter storm could make road travel dangerous and disrupt area flights as people begin their return journeys home from Christmas Day celebrations.

The National Weather Service issued a winter storm warning at 4 p.m. EST on Friday for New York City and the Tri-State area that is in effect until 1 p.m. on Saturday.

The NWS predicts between 4 and 8 inches of snowfall in portions of southern Connecticut, northeast New Jersey and southeast New York that could make travel very difficult with hazardous conditions during the Friday evening commute.

A mix of sleet and freezing rain also could make travel dangerous, CBS News reported.

"If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency," NWS forecasters said. "Check local Department of Transportation information services for the latest road conditions."