The forecast will vary depending on where you live and where you plan to travel from Friday night to Saturday morning. A general four to 8 inches of snow is expected, with higher amounts from 8-12 inches at the higher elevations in northern New Jersey. There will likely be a snow band that develops to drop the highest amounts of snow in the northern areas.
Central areas of New Jersey will start with fluffy snow that turns chunky as a warm layer of air pushes in through the southern areas of the state, slightly affecting the type of snow in central New Jersey. Folks south of I-195 may have a sharp cut-off of snow and mix, where 10 miles can be the difference between a lot of snow and compression. Snow mixes with sleet and even freezing rain south of Forked River especially. The battle-zone for this is between Toms River and Forked River. There is an icing concern across southwestern New Jersey along the New Jersey Turnpike south of Exit 8 in Mercer County and along the Delaware River in southern Warren through Hunterdon counties.
This icing can be significantly worse than snow as it creates dangerously slippery conditions quickly. A coating of ice can be incredibly disruptive and overall dangerous on Saturday morning, especially for southern counties, in the greater Philadelphia and Camden areas, through Delaware and northern Maryland. The snow wraps up as snow showers into Saturday morning, clearing for the afternoon to sunshine and breezy conditions. Saturday night will be cold and brisk.