Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 334 PM EST Sun Nov 01 2015 Valid 00Z Mon Nov 02 2015 - 00Z Wed Nov 04 2015 ...There is a slight risk of severe thunderstorms over parts of the Eastern Gulf Coast... ...Heavy rain possible from parts of the Southern Mid-Atlantic southwestward to parts of Alabama/Central Gulf Coast... ...Snow possible over the parts of the Northern Rockies and the higher elevations of the Great Basin... ...Snow possible over the higher elevations of the Sierras... Low pressure over the Central Gulf Coast will lift northeastward to off the North Carolina Coast with a front trailing southwestward to the Eastern Gulf Coast by Tuesday. The storm will pull moisture off the Gulf of Mexico over the southeastern portions of the U. S. producing rain with a few embedded thunderstorms from parts of the Lower Mississippi Valley/Central Gulf Coast northeastward to the Southern Mid-Atlantic/Southeast on Sunday evening. As the system moves northeastward, the rain will be limited to the Southern Mid-Atlantic/Southeast Coast by Tuesday morning. A front extending from Northern New England westward across the Great Lakes to the Upper Midwest will move southeastward off the Southern Mid-Atlantic Coast by Monday morning. The system will produce light rain over part of the Northern Appalachians to parts of Northern New England on Sunday evening into Monday morning. Meanwhile, another front extending from the Northern High Plains roughly southwestward to Southern California will move slightly eastward and become quasi-stationary extending from parts of the Upper Great Lakes southwestward to the Central Rockies then southward over parts of the Great Basin into the Southwest by Tuesday. An associated deep upper-level trough will move onshore with the front as well as onshore flow from the Pacific. The storm will produce rain along the Pacific Northwest Coast into Northern California eastward to parts of the Northern Rockies/Great Basin by Sunday evening. The rain will expand into parts of Southern California, Central Rockies, and the Northern Plains on Monday into Tuesday. Some of the higher elevations of the Northern Rockies and the Great Basin will develop snow Sunday into Monday afternoon. Overnight Monday, the snow levels will fall as the upper-level trough moves inland and an area of snow will develop over parts of the Northern Rockies into the Great Basin and parts of the Northern Intermountain Region and the Sierras of California by Tuesday morning. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php