Ginger Zee is tracking a major storm developing that will bring tornadoes, damaging winds, flash flooding and snow for millions. READ MORE: abcn.ws/39VjzTj A major storm is developing in the southern Plains Friday and is threatening to bring tornadoes, flash flooding and freezing precipitation to the central U.S. Twenty-one states from Texas to Maine are under flood, ice and snow alerts. #ABCNews #Weather #Forecast #GingerZee #Tornadoes