Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 337 PM EST Sat Nov 30 2013 Valid 00Z Sun Dec 01 2013 - 00Z Tue Dec 03 2013 ...Heavy snow possible for the Cascades and Northern Rockies... A quasi-stationary front extending from the Great Lakes to the Southern Plains will produce scattered light snow over parts of the Great Lakes through Monday. Pockets of rain will also develop over parts of the Lower Great Lakes during peak daytime heating. Additionally, energy moving over the Northeast will trigger coastal rain and higher elevation snow Sunday into Monday. Upper-level energy over the Gulf of Alaska will move southeastward to the Puget Sound by Monday. The associated front will move into the Pacific Northwest on Sunday night into Monday. Onshore flow ahead of the boundary will aid in producing rain and highest elevation snow over the Northwest and snow over the Northern Rockies. The rain and higher elevations snow will continue over the Northwest into the Northern Rockies through Monday. In addition, energy will move out a head of the system producing higher elevation snow and rain over parts of the Northern High Plains into the Northern Plains by Sunday evening. On Monday, snow will extend from parts of the Northern Plains into the Upper Mississippi Valley. Rain will develop over parts of the Northern High Plains with a narrow band of rain/freezing rain over parts of the Northern Plains. Elsewhere, weak upper-level energy over the Lower Mississippi Valley will move eastward to the Central Appalachians Sunday night into Monday producing scattered light rain over Central Gulf Coast/Tennessee Valley to the Southeast Coast. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php