Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 248 AM EST Sun Nov 26 2017 Valid 12Z Sun Nov 26 2017 - 12Z Tue Nov 28 2017 ...Heavy rain and snow for the Sierras... ...Heavy rain possible over the Pacific Northwest... ...Snow possible over the Cascades into parts of the Northern Rockies... A series of cold fronts will approach the West Coast over the next few days; which will direct a nearly continuous swath of moisture onshore. Coastal areas will have rain, possibly heavy at times, while portions of the Cascades and the Sierras will have snow today. The eastern edge of precipitation will spread across the Northern Rockies on Monday. Ranges in northwest Wyoming and southwest Montana could see accumulations of at least 4 to 8 inches. A Winter Weather Advisory is in effect for portions of north-central California/Sierras. Strong wind will accompany this system. A high wind watch is in effect from south-central Oregon to the northern edge of the Sierras. A clipper system is forecast to drop southeast from Canada and pass through the Great Lakes region and the Northeast today. Rain and snow is expected with this fast-moving system over parts of the Lower Great Lakes to the Central Appalachians and then across the Northeast today into Monday. Much of the south-central and southeast U.S. will be mostly dry over the next few days as surface high pressure returns. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php