Issued 400 AM EDT Sun Sep 23 2018 Valid Sun Sep 23 2018 - Tue Sep 25 2018 ...Heavy to excessive rainfall possible from the lower Mississippi Valley to the Mid-Atlantic... ...Elevated to critical fire weather threat continues across the Central Great Basin and the Central Rockies... Expect rounds of heavy rainfall to continue the next few days along a nearly stationary frontal boundary draped from the lower Mississippi Valley to the Mid-Atlantic. The WPC excessive rainfall/flas...