A low-pressure system will pass about 250 miles south of Rochester on Sunday. As a result, precipitation will begin as rain showers for later Saturday night, but it will change to a wet, slushy snowfall by midday Sunday. Since temperatures will be above freezing and marginal for snowfall, the actual accumulation will be minimal around the Rochester area. However, for communities south of Rochester where it will be a little colder, the amount of snow will be greater by Monday morning.