Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 250 AM EST Mon Jan 28 2019 Valid 12Z Mon Jan 28 2019 - 12Z Wed Jan 30 2019 ...Heavy snow possible over the Great Lakes eastward into New England... ...Temperatures will be 10 to 20 degrees below average over parts of the Upper Great Lakes and Upper Mississippi Valley... A storm over the Western Ohio Valley will move northeastward into Eastern Canada overnight Tuesday into Wednesday. The storm will produce snow from the Great Lakes westward into the Northern/Central Rockies, with Blizzard conditions over parts of Northern Plains into Upper Mississippi Valley through Monday morning. The snow over the Northern/Central Rockies and the Northern/Central Plains will wane overnight Monday into Tuesday morning. The snow will move into the Northeast overnight Monday into Tuesday evening. Rain and snow will develop along the associated front over parts of the Ohio Valley southwestward into the Lower Mississippi Valley, on Monday afternoon, that will move eastward to the Northern Mid-Atlantic southwestward to the Southeast/Tennessee Valley by Tuesday afternoon. The rain and snow will move off most of the Eastern Seaboard overnight Tuesday. Coastal rain and snow will linger over parts of Northern New England through Wednesday afternoon. The snow will linger over the Great Lakes through Wednesday, too. Meanwhile, upper-level energy over Northern California into parts of the Great Basin will aid in producing rain and higher elevation snow over the region on Tuesday morning. On Tuesday, very cold high pressure over West-Central Canada will move southeastward into Northern Plains by Wednesday morning. The high will bring very cold temperatures to the Upper Midwest with wind chills between - 60 and -55 F over parts of the Upper Mississippi Valley. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php