Heavy snow over parts of the Northeast and snow over parts of theAppalachians on Sunday.Scattered rain/freezing rain over parts of eastern New York State intoSouthern New England.Temperatures will be 15 to 25 degrees above average over parts ofNorthern/Central High PlainsLow pressure over the Central Appalachians/Mid-Atlantic moves eastward offthe Mid-Atlantic coast by Sunday evening. The system will produce rainover the Ohio Valley to the Mid-Atlantic, and showers and thunderstormswill devel...