A couple of strong winter storm systems are crossing the country. Through Wednesday, heavy snow and ice to the Ohio Valley into the Mid-Atlantic, ice for the Central Appalachians, and heavy snow and ice to the Central Plains. Heavy rain will result in flash and river flooding in the Lower Mississippi and Tennessee Valleys. Canada remain cold to the West where the heaviest snow will be in the mountains but also some heavy snowfall east focused on the Maritimes. Later this week, another very wet setup for the West arrives.