Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 PM EDT Thu Jun 16 2016 Valid 00Z Fri Jun 17 2016 - 00Z Sun Jun 19 2016 ...Showers and thunderstorms, along with potential severe weather, to impact the East Coast over the next few days... ...Stormy weather expected for the northern Plains... ...Dangerous heat expected to continue across the midsection of the U.S. in addition to the Desert Southwest... A front dropping south across the Mid-Atlantic will bring scattered showers and thunderstorms throughout the region. With daytime heating creating instability and plenty of moisture in place, along with the front acting as the focal point for setting off convection, some storms could cause both severe weather and flash flooding. Thunderstorm activity will increase later on during Thursday afternoon and continue into the evening. By Thursday night and into Friday morning, as the front continues to drop farther south across the Carolinas/Southeast and the Tennessee Valley, the precipitation will also shift south across these areas. There is a slight risk of severe weather for parts of South Carolina, Georgia, and northeast Florida on Friday. Showers and thunderstorms will continue its southerly track along the front on Saturday as the boundary moves across Florida and stalls in the lower Mississippi Valley. Farther west to the northern Plains, a front moving across this region will help generate showers and thunderstorms over the next few days. With plentiful moisture on tap being transported north and a fair amount of instability, some of these storms have the capability to produce flash flooding. Severe weather will be a viable threat on Thursday night as the front tracks across the Dakotas through Thursday evening and into early Friday morning along with the potential of flash flooding. On Friday, the front continues to push south and east with most of the heavier precipitation in South Dakota. By Saturday, the front will lift north as a warm front which will push convection northward across Montana and the Dakotas. This brings another threat of severe weather and flash flooding. An upper level ridge continues to sit over the midsection of the U.S. which is yielding to oppressive and dangerous heat especially across the southern Plains and Mississippi Valley. The heat is expected to continue mostly across the southern Plains into the weekend. Fanning Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php