Issued 419 AM EDT Mon May 21 2018 Valid Mon May 21 2018 - Wed May 23 2018 ...There is a slight risk of severe thunderstorms over parts of the Ohio Valley... ...Heavy rain possible over parts of the Southeast/Eastern Gulf Coast... A front extending from the Mid-Atlantic westward to low pressure over the Ohio Valley/Middle Mississippi Valley then southward across parts of the Lower Mississippi Valley into the Southern Plains will have the southern half of the boundary dissipate ...