Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 259 PM EST Thu Feb 01 2018 Valid 00Z Fri Feb 02 2018 - 00Z Sun Feb 04 2018 ...Rain continues over parts of the Pacific Northwest with a mix of rain and snow over the Cascades... ...Snow possible over parts of the Northern/Central Rockies... ...Snow possible from the Great Lakes to Central/Southern Appalachians and eastward over the Mid-Atlantic and Northeast.... A cold front moving through the eastern U.S. today will move offshore tonight and during the overnight hours. Cold air will overspread the central and eastern states in the wake of the front as surface high pressure builds in over the Midwest. Snow will be possible from the Great Lakes region south to the Central/Southern Appalachians and areas to the east over the next couple of days. The snow over the Great Lakes will be enhanced by the lakes. Temperatures will be significantly colder Friday and into the weekend. The rain will move eastward off the Southern Mid-Atlantic/Southeast and the Eastern/Central Gulf Coast by Friday evening. Multiple Upper-level disturbances traveling across the Northwest will aid in producing snow over the higher elevations. Onshore flow will keep rain possible over coastal Washington and Oregon through the weekend. Snow-levels will begin to rise this weekend as high pressure builds near the West Coast. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php