Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 255 AM EST Mon Feb 11 2019 Valid 12Z Mon Feb 11 2019 - 12Z Wed Feb 13 2019 ...More heavy snow for the Northwest U.S. and a major winter storm develops for the Midwest and Northeast... A developing winter storm will bring widespread moderate to heavy snow to much of the Midwest and Great Lakes Monday night and into Tuesday, and then reaching the Northeast by Tuesday and early Wednesday. The potential exists for 6 to 12 inches of snow from eastern Iowa to northern Michigan, and also across upstate New York and northern New England with localized higher amounts. A wintry mix of precipitation, including the potential for some significant ice accretion, is likely to the south of the heavy snow axis, extending from the Ohio Valley and southern Great Lakes to the northern Mid-Atlantic region and also southern New England. Significant travel impacts are anticipated for early in the week, and some power disruptions are also possible. Farther to the south in the warm sector of the storm system, an enhanced southerly flow of deep moisture from the Gulf of Mexico will result in a swath of heavy rain and some thunderstorms from Louisiana to the Ohio Valley through Tuesday. Flash flooding will be possible across some of these areas as rounds of heavy rain move over the same areas repeatedly, and WPC currently has a slight to moderate risk of excessive rainfall from Arkansas to southern Ohio. Several inches of rainfall will be possible for some areas before the event is over. A series of winter storms impacting the Western U.S. will continue to bring rounds of widespread snowfall to much of the Pacific Northwest, northern California, and the northern Rockies. Given the presence of below normal temperatures across this region already, snow levels remain low with accumulating snowfall likely near or just above sea level for western Washington and Oregon. The most significant snowfall is expected across the higher terrain of the Washington and Oregon Cascades, where 1 to 3 feet of snow is likely. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php