Steady snowfall throughout the day was expected to moderate somewhat for the evening commute, at least in southern Maine. The National Weather Service said that light snow will continue through the evening but the heavy snowfall of the mid-afternoon was expected to decrease, said Margaret Curtis, of the National Weather Service in Gray. “Certainly the roads are getting slick and we’d advise using caution,” she said. Several cities announced new parking bans as forecasters called for 3 to 5 inches of snow in the south, on top of the roughly 2 feet dropped by Tuesday’s blizzard.