The quick-hitting winter storm expected to bring up 6 to 12 inches of snow several northern New Jersey counties is expected depart the state nearly as quickly as it arrived with the heaviest snow winding down after midnight, forecasters say. Some light snow and rain showers could linger into Sunday morning, but forecasters don’t expect much additional snow accumulation after 2 a.m. Rainfall totals in areas that dodged the snow in this storm could range from 1 to 1.5 inches before things start to wind down. The heaviest snowfall was expected Saturday evening with amounts nearing 1 inch per hour…