Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 357 PM EDT Sat Mar 31 2018 Valid 00Z Sun Apr 01 2018 - 00Z Tue Apr 03 2018 ...Snow expected for Central Plains to Middle Mississippi Valley on Sunday and from the Northwest to Upper Midwest on Monday... ...April snow possible for Mid-Atlantic to Northeast by Sunday night and Monday... An upper level disturbance combined with colder than normal temperatures will cause a narrow corridor of snow to fall in the Northern High Plains and Central Plains Saturday night and move into the Middle Mississippi Valley on Sunday. 6 to 8 inches of snow is possible for portions of Nebraska in particular, where some Winter Storm Warnings are in effect. Winter Weather Advisories are in place from southeastern Wyoming through northern Missouri. Another more potent upper level disturbance will move through the Northwest on Sunday and Monday. This will lead to rain and snow for the Pacific Northwest and into the Northern Rockies on Sunday. Snow is forecast to spread into the Northern Plains by Monday morning, and into the Upper Midwest by Monday evening. The highest snowfall totals will occur in the higher elevations of the Washington Cascades and the Northern Rockies, where over a foot of snow is possible. In lower elevations, 2 to 6 inches of snow is possible through Monday evening for the Northern High Plains and into the Upper Midwest. After a cold front passes through the Northeast and Mid-Atlantic on Sunday, the cool air and an upper level disturbance will lead to the potential for snow by Sunday night into Monday morning. Snowfall totals in the major cities are expected to be about an inch. Higher snow totals of 3 to 6 inches are currently expected in interior Pennsylvania, western Maryland, and eastern West Virginia. While much of the northern tier of the country could get snow through the beginning of the week, rain is also possible along a cold front located from the Northeast through the Ohio and Lower Mississippi Valleys Saturday night. The front will move slowly in the Lower Mississippi and Tennessee Valleys on Sunday and Monday, so there is a continued chance of rain and thunderstorms in those regions. Rain totals are expected to be about an inch in Northern Arkansas and Southern Missouri. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php