Issued 401 PM EDT Sun Sep 23 2018 Valid Mon Sep 24 2018 - Wed Sep 26 2018 ...Heavy to excessive rainfall possible from the lower Mississippi Valley to the eastern Tennessee and Ohio Valleys... ...Elevated to critical fire weather threat continues across the Central Great Basin and the Central Rockies... Multiple rounds of heavy rainfall is forecast to continue through midweek along a nearly stationary frontal boundary stretched from the lower Mississippi Valley to the Mid-Atla...