Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 138 PM EST Mon Dec 9 2019 Valid 00Z Tue Dec 10 2019 - 00Z Thu Dec 12 2019 ...Cold front crosses the eastern U.S. with rain and inland snow followed by much colder temperatures... The main feature of interest for the beginning to middle part of the week will be a strong cold front crossing the eastern U.S. and Gulf Coast region. Widespread rain is expected ahead of the front Monday night and into Tuesday with temperatures briefly above average on Tuesday for the East Coast. The front will herald the arrival of an arctic airmass to much of the Great Lakes region and eventually to the Mid-Atlantic and Northeast by midweek. There will likely be enough moisture and upper level forcing in place behind the front to support a transition to snow from the central Appalachians to New England before ending on Wednesday. The western U.S. initially begins on a tranquil note through most of Tuesday before a more unsettled weather pattern arrives. A weakening front from the eastern Pacific will generally support some light showers and mountain snow, followed by another round of precipitation by Wednesday as a stronger storm lurks offshore. The heaviest precipitation should be across southern Oregon and northern California. Elsewhere across the continental U.S., dry conditions can be expected from the Desert Southwest to the Upper Midwest. It will continue to be bitterly cold from eastern Montana to northern Michigan with widespread subzero lows and single digit highs. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php