Issued 224 PM EST Fri Dec 14 2018 Valid Sat Dec 15 2018 - Mon Dec 17 2018 ...Excessive rainfall possible over parts of Southeast into the Mid-Atlantic... ...There is a slight risk of severe thunderstorms over parts of northeastern Florida... ...Moderate to heavy snow for the Northern Cascades... ...Heavy rain possible over parts of the Ohio Valley into the Mid-Atlantic and parts of Northern California... A storm over the Lower Mississippi Valley will move northeastward to t...