Widespread showers/ storms will bring the threat of severe weatherand flash flooding from the Southern Plains eastward through the MiddleMississippi/Ohio Valleys Monday...Another Critical Risk of Fire Weather for the Southern High PlainsMonday.Advancing storm system will bring increasing showers and storm chancesto much of the eastern U.S. Tuesday, with another risk of severe weatherin the Ohio/Tennessee Valleys and Mid-Atlantic.Unsettled weather in the West, with lower elevation rain and hig...