The National Weather Service has upped its call on potential snow fall for Monday. A storm system will begin to move in on Sunday night, that likely could start as rain and turn over to sleet and then snow on Monday. A Winter Storm Watch is posted from 1 a.m. to 7 p.m. on Monday. As general guidance, NWS is predicting 6 to 10 inches of snow across South Jersey. The track of the storm is never 100 percent at this point and slight variations could significantly change snow fall totals. The early guidance suggests people should prepare for the potential of a significant snow fall event on Monday.