Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 329 PM EST Sun Dec 13 2020 Valid 00Z Mon Dec 14 2020 - 00Z Wed Dec 16 2020 ...There is a Slight Risk of severe thunderstorms over parts of the Central Gulf Coast... ...Snow for parts of the Central/Southern Plains... ...Snow for parts of the Northwest into the Northern/Central Rockies... A the storm will develop across the Southern/Central High Plains and produce moderate snowfall across the area. The system will move from the Southern Plains into the Southeast by Monday, before moving off the East Coast by Monday evening. The storm will produce snow and could lead to dangerous travel conditions. Around 3 to 6 inches of snow is possible over parts of the Southern/Central Plains. Rain and thunderstorms will develop over parts of the Southern Plains/Lower Mississippi Valley. The SPC has issued a Slight Risk of severe thunderstorms over parts of the Central Gulf Coast through Monday morning. The main hazard with the severe storms will be severe wind gust. Frequent lightning, hail, and tornadoes cannot be ruled out as other hazards associated with severe thunderstorms. As the system moves to the Southeast, locally heavy rain is possible across the Tennessee Valley, Southern Appalachians, and Mid-Atlantic through Monday. As the system moves off the coast, the storm will pull cold air over the Northeast, which will allow for the rain on the northern edge of the precipitation shield to change over to snow over parts of the Northern Mid-Atlantic and the Northeast. This transition to snow could make for a slippery afternoon commute on Monday. Total snowfall amounts of 1 to 3 inches are possible, which is enough to impact travel in highly populated areas that haven't yet experienced accumulating snow this season. Higher snowfall amounts are likely across the Central Appalachians. Meanwhile, another front over the Midwest will move eastward to the Lower Great Lakes and dissipate by Tuesday. The system will produce light snow over parts of the Upper Great Lakes on Monday and into parts of the Lower Great Lakes on Monday evening. Additionally, upper-level energy will move into the Pacific Northwest then advance southeastward to the Central/Southern Plains by Tuesday evening. The system will have rain and higher elevation snow over parts of the Pacific Northwest into Northern California, with snow developing over parts of the Northern Intermountain Region on Sunday evening. Overnight Sunday, the snow will move into parts of the Great Basin and the Northern/Central Rockies and move onto parts of the Central Plains by Monday evening. The snow and rain will weaken over the Pacific Northwest and Northern California on Monday. Snow and rain will return to parts of the Southern Plains/Lower Mississippi Valley on Tuesday evening. The snow will produce hazardous driving conditions. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php