Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 311 AM EDT Wed May 29 2019 Valid 12Z Wed May 29 2019 - 12Z Fri May 31 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 to the end of the work week. The large scale trough and upper low currently that was anchored over the Intermountain West will gradually weaken by Friday 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 by Friday. Although some changes are on the forecast horizon, there will still be a couple days of highly active weather stretching from northern Texas to the Ohio Valley. There will be multiple rounds of additional heavy rain with amounts on the order of 2 to 4 inches possible across parts of northeast Texas, eastern Oklahoma, and western Arkansas. The axis of this heavy rainfall will likely be displaced some to the southeast from where the recent deluges have happened over the past week. Another corridor of enhanced rainfall is expected from the Upper Midwest to the northern Mid-Atlantic region along and north of a stationary front. In addition, severe weather is likely across these same general areas as multiple mesoscale convective complexes develop. The Storm Prediction Center has additional information pertaining to the severe potential. 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. Some lingering high elevation snow is likely across the highest terrain of the central and northern Rockies through Wednesday afternoon before tapering off. 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, and additional record highs will probably be realized. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php