Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 AM EST Wed Mar 08 2017 Valid 12Z Wed Mar 08 2017 - 12Z Fri Mar 10 2017 ...Heavy snow possible over the Northern Cascades... ...Heavy snow possible over parts of Bitterroots, Sawtooth, and Wind River Mountains ...Heavy rain possible over parts of the Pacific Northwest... A potent cold front that impacted much of the eastern half of the U.S. will exit eastward into the Atlantic and southward into the Gulf of Mexico today. Rain showers will be possible along the coast through this morning, coming to an end throughout the day. Florida and Southeast Texas may see continued shower and thunderstorm chances as the cold front continues to impact these locations. A reinforcing cold front will continue the surge of much colder air across the north central U.S. Northwest flow will lead to snow showers downwind of the Upper Great Lakes over the next several days, and in the lower Great Lakes. As the cold front quickly sinks to the southeast over the next several days, scattered showers and thunderstorms may develop out ahead of it, occupying the Southern Plains and the Lower Mississippi Valley Thursday, and spreading eastward Thursday night. Meanwhile, portions of New England could see precipitation in the form of scattered snow showers Thursday night into Friday. Yet another series of low pressure systems are poised to impact the Pacific Northwest over the next few days. The system that moved inland yesterday will propagate across the Northern Rockies and into the Northern Plains today, as another low pressure system is set to reach landfall overnight. Onshore flow will continue widespread rain showers along the coast today and tonight, and scattered rain showers inland. In the higher elevations and along the Canadian border, snow is expected to persist, spreading eastward into the Northern Plains through tonight. The next low pressure system will reach the Pacific Northwest Thursday night into Friday. This will spread rain showers farther inland with a surge of warmer air. However, widespread snow is expected to continue across the northern Rockies and spread eastward farther into the northern Plains. Winter Storm Warnings and Advisories remain in effect for portions of the Pacific Northwest eastward into the Northern Plains for the ongoing snow. Wix Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php