Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 347 AM EDT Mon Oct 30 2017 Valid 12Z Mon Oct 30 2017 - 12Z Wed Nov 01 2017 ...Heavy rain possible over parts of the Lower Great Lakes and the Northeast... ...Snow possible over parts of the Upper Great Lakes, Central Appalachians, and parts of the Central Rockies... Tropical moisture, from what was tropical cyclone Philippe, will draw into the rapidly deepening storm over the Northeast Coast. The central low will lift through New York today and continue on its track through Quebec Tuesday and Wednesday. Rain, heavy at times, will spread across portions of the Northeast and Great Lakes and persist for a couple of days- while diminishing over the Mid-Atlantic today. Flood watches and warnings will remain in effect across portions of the Northeast. Light snow will be possible over the highest elevations of the Central Appalachians. Strong winds are expected near the deep low; much of New England is under a High Wind Watch with Storm Warnings/Hurricane Force Wind Warnings for the coastal and offshore waters. A front extending from the Upper Great Lakes/Upper Mississippi Valley roughly southwestward to the Central High Plains will move eastward to the Mid-Atlantic Coast/Southeast to the Lower Mississippi Valley/Western Gulf Coast by Tuesday morning. The associated surface low with this frontal system will be absorbed into the circulation around the very deep low over the Northeast as the low moves into Southern Canada today. Rain and light snow is expected over parts of the Upper Mississippi Valley/Upper Great Lakes and parts of the Northern Plains through late Monday night. Widespread showers and thunderstorms will develop along the southern flank of the front as it passes through the Central and Southern Plains. Snow, heavy at times, is forecast for portions of the Central and Southern Rockies. Another low pressure system is forecast to surge southeast from Canada into the Northern and Central Plains Tuesday into Wednesday. This system will bring a wintry mix of precipitation to the Northern Rockies and adjacent Northern High Plains. Campbell/Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php