Just 30 miles could mean the difference between no precipitation and several inches of snow this weekend for Northern New Jersey, according to the National Weather Service.

As a low-pressure system works its way to the northeast out of the Gulf of Mexico, freezing temperatures could create some severe weather and “plowable snow” Saturday into Sunday, National Weather Service meteorologist Joey Picca said.

As of Thursday afternoon, however, the exact track of the storm was still uncertain, Picca said, and Northern New Jersey will have to wait to see if the system heads toward the coast or straight through this portion of the state.

“It’s about a 30-mile difference (east or west),” Picca said. “Depending on that track, it could make a world of difference.”

Picca said parts of northern New Jersey could see a dry weekend if the storm turns toward the coast, but “several inches” of snow and major travel impacts if it goes through the region.

Forecasted accumulation amounts remain uncertain, Picca said.

The potential storm is the second in the same low-pressure system that took hold of the area Wednesday afternoon, creating hazardous travel conditions as snow and ice blanketed the region.

This article is posted on Patch sites in Bergen, Essex, Hudson, Morris, Passaic, Somerset, Sussex and Warren counties.