Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 251 AM EST Mon Jan 13 2020 Valid 12Z Mon Jan 13 2020 - 12Z Wed Jan 15 2020 ...Heavy snow to blanket much of the Northwest... ...Areas of showers and thunderstorms to develop over the Southeast and Lower Mississippi Valley... ...Unseasonably mild temperatures to persist across the Eastern U.S., bitterly cold in the Northern Rockies/Plains... The Northwest will have an active stretch of weather as a pair of storm systems track through the region over the next couple days and a steady current of onshore flow will aid in producing the precipitation . Wintry weather is the headliner with numerous Winter Storms Warnings and Winter Weather Advisories in effect from the Cascades of Washington and Oregon, eastward to the Central Rockies. Snowfall will be measured in feet in the Cascades, the Northern Sierra Nevada, Northeast Oregon, Northern and Central Idaho, Western Wyoming, North-Central Utah, and the Colorado Rockies. Winter Storm Watches have also been issued for the Seattle metro area as they may pickup a few inches of snow. Expect treacherous and icy travel conditions in these affected areas. A frontal boundary will become quasi-stationary from the Mid-Atlantic Coast stretch southwest across parts of the Tennessee Valley and into the Western Gulf Coast. Scattered showers and thunderstorms will form along the front and could lead to localized areas of flash flooding. Some thunderstorms could also be severe over parts of the Tennessee Valley and Lower Mississippi Valley. Unseasonably mild temperatures will continue across the Southeastern U.S. in wake of the big weekend storm system. Record warm daily high and low temperatures will be possible in parts of the Southeast through Wednesday. Temperature anomalies on average will range between 10-20 degrees above normal across much of the Mid-Atlantic/Southeast and into the Central Appalachians. Farther west, bitterly cold temperatures will engulf much of Montana and the Western Dakotas with high temperatures are forecast to be below zero on Monday and Tuesday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php