Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 314 AM EDT Tue May 28 2019 Valid 12Z Tue May 28 2019 - 12Z Thu May 30 2019 ...Weather pattern beginning to slowly change by the end of the week... The persistent unsettled weather pattern that has been in place across the continental U.S. over the past week is beginning to show signs of some changes going forward into the middle of the week and beyond. The large scale trough and upper low currently anchored over the Intermountain West is forecast to slowly de-amplify by Thursday morning as the shortwave energy lifts out across the Plains. The stubborn upper level ridge that has produced record high temperatures across the Southeast U.S. will begin to get suppressed to the south over the northern Gulf of Mexico as the flow pattern gradually becomes a bit more zonal. In terms of sensible weather, the slow moving front over the central U.S. will begin slowly tracking eastward as the upper low and shortwave exit the Rockies and then across the central and northern plains. However, there will likely be another round of heavy rain from northern Texas to Missouri on Wednesday ahead of the front as Gulf of Mexico moisture surges northward ahead of it. Another corridor of enhanced rainfall is expected from the Upper Midwest to the Northeast U.S. along and north of a stationary front. In addition, severe weather is possible across these same general areas as multiple mesoscale convective complexes develop. Temperatures will continue to feel more like April across much of the Intermountain West and the Rockies through Wednesday before a gradual moderating trend commences by the end of the week. High elevation snow is likely across the highest terrain of the central and northern Rockies in conjunction with the upper level low. Across the Deep South and extending to the Mid-Atlantic region, it will continue to feel like the middle of summer with widespread 90s expected and a few readings of 100 degrees or higher possible across interior portions of the Southeast. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php