Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 352 AM EDT Wed Oct 11 2017 Valid 12Z Wed Oct 11 2017 - 12Z Fri Oct 13 2017 ...Snow for the Cascades and Northern Rockies... A front extending from the Ohio Valley southward to the Central Gulf Coast will slowly move eastward to the Mid-Atlantic/Southeast Coast by Thursday morning and off the Mid-Atlantic Coast by Thursday evening. Showers and thunderstorms will develop along and ahead of the boundary over parts of the Ohio Valley into the Tennessee Valley on Wednesday morning. On Wednesday afternoon, the showers and thunderstorms will expand southward along and ahead of the front over the Mid-Atlantic into the Southeast. On Wednesday evening, the showers and thunderstorms will end over most of the Southern Mid-Atlantic and the Southeast while continuing over the Northern Mid-Atlantic through Thursday evening. Again on Thursday afternoon, the showers and thunderstorms will redevelop along the boundary over parts of the Southern Mid-Atlantic into the Southeast. Additionally, rain will develop the Western Ohio Valley/Great Lakes that will move eastward into the Lower Great Lakes/Northeast on Wednesday evening into Thursday evening. Meanwhile, a front over the Northern Rockies into Northern California will move eastward to the Upper Mississippi Valley/Central Plains into the Central Rockies by Thursday evening. Behind the front, onshore flow will stream moisture into the Northwest producing rain and higher elevation snow eastward to the Northern Rockies/Northern High Plains through Thursday evening. The snow levels will lower over the Cascades and the Northern Rockies after the front goes by. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php