Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 410 AM EST Wed Nov 17 2021 Valid 12Z Wed Nov 17 2021 - 12Z Fri Nov 19 2021 ...Strong and gusty winds across the northern Plains will gradually moderate as deep storm in southern Canada weakens and moves away... ...Some wintry precipitation is forecast for northern New England tonight ahead of a warm front... ...A cold front will bring a around of rain through the eastern U.S. for the next couple of days followed by colder temperatures and lake-effect snow/rain over the Great Lakes... ...Tropical moisture will bring some enhanced rainfall across southern Florida on Thursday... A deep low pressure system moving across southern Canada will gradually weaken as it heads towards eastern Canada during the next couple of days. Strong and gusty winds across the northern Plains will gradually moderate today and should have largely subsided by Thursday as a high pressure ridge takes over. Meanwhile, mild air across the Deep South through the Ohio Valley will be pushed into the eastern U.S. and up through New England following the passage of a warm front. Some snow is forecast to develop this evening across northern New England before changing to a period of sleet/freezing rain overnight, and finally to all rain Thursday morning as the warm front moves into the region. Behind the warm front, high temperatures for today and Thursday will be locally as much as 20 degrees above normal in portions of the eastern U.S. Meanwhile, a cold front will push steadily across the mid-section of the country today, through the eastern U.S. on Thursday, and then off into the Atlantic by Friday morning. Increasing southerly flow ahead of this front will allow moisture to return north from the Gulf of Mexico and this will allow for an axis of showers and some thunderstorms to develop. Cold air behind the front will set up some lake-effect rain and snow showers over the Great Lakes region Thursday night into Friday morning with gusty winds. Interior New England may see the rain ending as wet snow following the cold frontal passage Thursday evening along with gusty winds and colder temperatures. Meanwhile, a new storm system will be approaching the Pacific Northwest by late Thursday, and this will bring a new threat of rain and higher elevation snowfall here as moisture streams inland. Some heavy rain will once again be in the forecast for the Pacific Northwest coast Thursday night. Some high-elevation snows should also move into the northern Rockies by Friday morning. Elsewhere, tropical moisture from the western Caribbean Sea will be lifted northward ahead of a weak upper-level trough moving into the Gulf of Mexico. Some enhanced rainfall can be expected to move across southern Florida mainly on Thursday. By Friday morning, much of the rain should be on its way eastward into the Atlantic as a cold front dips into northern Florida. Kong Graphics are available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php