Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 PM EST Sat Jan 15 2022 Valid 00Z Sun Jan 16 2022 - 00Z Tue Jan 18 2022 ...A deep low pressure system will bring widespread snow and ice as well as strong winds up the interior eastern U.S. Sunday into Monday... ...Severe thunderstorms could impact the Florida Panhandle tonight into Sunday morning... ...Some heavy rain, strong thunderstorms and high winds can be expected to impact the coastal sections of the entire East Coast Sunday into Monday... A low pressure system continues to develop this afternoon over the Deep South. Arctic air settling through much of the central and eastern U.S. will work in concert with this dynamic system to bring widespread and significant snow and ice up the Eastern Seaboard on Sunday into Monday. In the mean time, rain and some thunderstorms are expanding across the Deep South to the Gulf Coast ahead of the low. The vigorous dynamics associated with the intensifying storm are expected to trigger strong thunderstorms, some of which could become severe, as they sweep across the Florida Panhandle tonight into Sunday morning ahead of a strong cold front. Meanwhile, cold air wrapping around the north side of the low is changing rain to snow from Arkansas eastward into the Tennessee Valley. This area of wintry precipitation is expected to expand and overspread the interior eastern U.S. Sunday into Monday. Highest snowfall totals should be along the spine of the Appalachians as well as across the lower Great Lakes as the storm center is forecast to track up the Piedmont sections of the East Coast. Meanwhile, a boundary over Central Canada will move into the Upper Midwest by Sunday. The system will produce light snow over parts of the Upper Mississippi Valley and the Upper Great Lakes for Sunday and begin to wane by Monday morning. The snow will result in reduced visibility and hazardous driving conditions. Kong/Ziegenfelder Graphics are available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php