...Heavy snow, blizzard conditions, and freezing rain likely to continueacross portions of the north-central U.S. through Tuesday......Flooding rains are possible across portions of the southern and centralAppalachians......A wintry mix, including significant icing, is possible across parts ofthe Northwest...A significant winter storm will continue to impact a large portion of thenorth-central U.S., with heavy snow, freezing rain, and strong windsthrough Tuesday.  Widespread travel disruptions are likely across theregion.