Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 324 AM EDT Wed Mar 15 2017 Valid 12Z Wed Mar 15 2017 - 12Z Fri Mar 17 2017 ...Remaining cold over the eastern U.S. with rain and snow for the northwestern U.S. states... The powerful nor'easter that has plagued the northeastern U.S. over the past two days is now beginning to weaken some and will continue lifting northward into Canada during the day Wednesday. Interior sections of New England and upstate New York were hammered with 1 to 2+ feet of snow, while high winds and heavy rain battered the coastal areas from the Carolinas to Cape Cod. Some lingering snow showers will be likely across parts of New England on Wednesday with the low over Quebec. A fresh surge of arctic air will settle in behind this nor'easter across much of the Great Lakes, Ohio Valley, Mid-Atlantic, and Northeast through Thursday. An impressive upper level low will cross the region on Wednesday, and there will be enough instability to generate periods of snow showers from the Appalachians to the coast. Once this passes, a large surface high will settle in from the west and allow for sunny to partly cloudy skies for the end of the week, while still keeping below-average temperatures in place. Out West, a Pacific front moving onshore across Washington and Oregon will bring periods of rain and mountain snow through Thursday, with an additional area of enhanced precipitation across the northern Rockies. Given that a warmer weather pattern will be in place, expect snow levels to be higher. Flood watches and advisories are in effect for parts of this region owing to snow melt from the rain and warmer temperatures. It will continue to stay warm and dry across the Desert Southwest through the end of the week. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php