A new burst of arctic air was on the way and there was an "increasing potential of another significant winter storm" for Eastern states this weekend, the National Weather Service said.

What will happen?: The forecast could change, and change again, before the weekend. While forecasters are fairly confident that a storm will develop, key details — including its strength, where it will go and how much snow or ice it will deliver — remained uncertain on Tuesday.

A winter storm barreling towards New York and New Jersey is expected to dump as much as 10 to 14 inches of snow on the area and bring lasting dangerous conditions,

New Jersey Gov. Mikie Sherrill declared a state of emergency as weather forecasts project a major snowstorm this weekend.

Officials in several cities, including Boston, New York and Philadelphia, advised residents to avoid traveling if possible through the weekend.

At 9:30 a.m. on Thursday, the National Weather Service issued an updated snow squall warning in effect until 10:30 a.m. for Allegany, Cattaraugus, Cayuga, Chautauqua, Livingston, Monroe, Ontario, Wayne and Wyoming counties.

While several western New York counties tallied more than a foot of snow this week, two towns in Oneida County measured more than four feet of snow (with the Town of Point Rock ju