Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 243 PM EST Mon Feb 16 2015 Valid 00Z Tue Feb 17 2015 - 00Z Thu Feb 19 2015 ...Snow for the Mid-Atlantic and Central Appalachians... ...Freezing rain possible over parts of the Carolinas and Tennessee Valley... ...Temperatures will be 10 to 25 degrees below average east of the Rockies... A storm over the Tennessee Valley/Central Gulf Coast will move northeastward to just off the Mid-Atlantic Coast by Tuesday morning then continuing northeastward out over the Western Atlantic. The system will produce moderate snow over parts of the Central Appalachians/Mid-Atlantic that will likewise move northeastward to Southern New England by Tuesday morning. Light to moderate rain will also develop over parts of the Tennessee Valley/Southeast that will move off the Southeast Coast by Tuesday morning as well. Between the rain/snow line, rain/freezing rain and sleet will develop over parts of the Tennessee Valley into the Carolinas through Tuesday morning. An area of showers and thunderstorms will develop over parts of the Central Gulf Coast on Sunday evening moving off the Central/Eastern Gulf Coast by late Sunday night. Most of the precipitation will end along the East Coast by Tuesday afternoon. While light snow will end over parts of Southern New England by late Tuesday afternoon. Rain will continue over parts of Florida through Tuesday evening moving off the Southern tip of Florida by Wednesday morning. Another front extending from the Upper Great Lakes to the Central Plains then bank against the Northern/Central Rockies will move southeastward to the Lower Great Lakes to the Southern Appalachians then westward to the Southern Plains by Wednesday. The system will produce light snow over parts of the Great Lakes through Tuesday morning. The snow will extend southward along the front to the Western Ohio Valley/Western Tennessee Valley by Tuesday evening then moving eastward parts of the Northern/Central Appalachians by Wednesday morning. In addition, upslope flow will aid in producing light snow over parts of the Northern High Plains to parts of the Central High Plains through Tuesday afternoon. Additionally, upper-level energy over the Central Rockies will trigger light snow on Monday evening that will move to the Southern Rockies by Tuesday morning before ending before noon on Tuesday. Elsewhere, a boundary approaching the Northwest will produce light rain along parts of the Pacific Northwest Coast by Wednesday morning. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php