Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 304 AM EST Fri Mar 06 2020 Valid 12Z Fri Mar 06 2020 - 12Z Sun Mar 08 2020 ...Snow for the Central Appalachians, Lower Great Lakes, and for the Cascades/Sierra Nevada Mountains... An upper-level low over the Great Lakes will move eastward off the Northeast Coast overnight Friday. The energy will produce light snow over parts of the Great Lakes that will expand into the Central Appalachians/Lower Great Lakes and Northern New England by Friday evening ending by Saturday afternoon. Meanwhile, an upper-level trough off the West Coast and a week plume of moisture along the coast will aid in producing light rain over parts of the Pacific Northwest and Central California Coast and light snow over the Cascades into parts of the Northern Intermountain Region through Friday evening. On Saturday morning as the trough's associated front passes into the Northern Intermountain Region, the snow levels will lower over Oregon and Northern California as the areal coverage of snow increases. The snow will expand eastward into parts of the Northern Rockies on Saturday night with the snow and rain waning by Sunday morning. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php