Probabilistic Heavy Snow and Icing Discussion NWS Weather Prediction Center College Park MD 436 AM EDT Sun Mar 08 2020 Valid 12Z Sun Mar 08 2020 - 12Z Wed Mar 11 2020 Days 1-3... ...Western U.S.... The Day 1 period (ending 12Z Mon) continues to look relatively quiet across much of the West with respect to snowfall -- with generally light accumulations expected from the Pacific Northwest and Northern California mountains to the northern and central Rockies. Some locally heavier accumulations are forecast to return to portions of the northern Rockies -- particularly along the southwestern Montana and western Wyoming ranges as a low-to-mid level front associated with a Pacific shortwave slides into the region on Monday. Then on Tuesday, an approaching upper low will bring widespread precipitation into Southern California. Snow levels ahead of the system are expected to be high, with significant accumulations forecast mainly above 7000 ft along the southern Sierra and southern coastal ranges. ...Northern Maine... A cold front dropping south through northern Maine late Sunday is expected to stall and remain along the coast through early Tuesday. Models show light overrunning snows moving east across northern Maine on Monday, followed by organized heavier amounts Monday night into early Tuesday ahead of an area of low pressure approaching from the Great Lakes. Significant snow accumulations are possible over northern Aroostook County, with a wintry mix, including some accumulating ice, possible farther south. Pereira