Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 259 PM EST Sun Nov 04 2018 Valid 00Z Mon Nov 05 2018 - 00Z Wed Nov 07 2018 ...Numerous severe storms Monday evening into the overnight for portions of the Lower Mississippi into the Tennessee and Ohio Valleys... ...Heavy snow for portions of the Northern/Central Rockies... A storm over the Upper Great Lakes/Upper Mississippi Valley will produce rain and snow over the western portions of Lakes Superior Sunday evening into Monday morning. Rain will develop over other parts of the Upper Great Lakes/Upper Mississippi Valley southward to the Lower Mississippi Valley, with some thunderstorms over parts of the Lower Mississippi Valley early on Sunday evening. The rain will move into the Great Lakes/Ohio Valley by Monday morning lifting into Canada overnight Monday. Ongoing heavy precipitation across western Washington will give way to scattered, lighter precipitation as the associated frontal band advances east of the region later today. Meanwhile, precipitation will begin to develop farther east, including some heavy snow across portions of the Northern/Central Rockies. Winter Weather Advisories and Winter Storm Warnings are in effect for portions of southwest Montana southward along the Idaho and Wyoming border, as well as further east from southeast Wyoming into central Colorado. In addition to heavy snow, strong gusty winds will generate very dangerous travel conditions for portions of the area Sunday evening into Monday. As the front pushes farther east on Monday, precipitation is expected to redevelop across the Plains and Mississippi Valley. A moist and unstable airmass emanating from the Gulf of Mexico is expected to spread north ahead of the front, supporting numerous shower and thunderstorm development from the Central Gulf Coast and Lower Mississippi Valley northward into the Tennessee and Ohio valleys by late Monday. The Storm Prediction Center is highlighting an expansive Slight Risk area for severe storms across the area, with an embedded Enhanced Risk area centering over the lower Mississippi into the Tennessee valley. The Storm Prediction Center notes that numerous severe storms with the potential for damaging winds and tornadoes are expected Monday evening into the overnight hours across this region. Ziegenfelder/Pereira Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php