Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 255 PM EDT Fri Jun 03 2016 Valid 00Z Sat Jun 04 2016 - 00Z Mon Jun 06 2016 ...There is a slight risk of severe thunderstorms over parts of the Northern Plains and Upper Midwest... ...Heavy rain likely over parts of the Southern Plains and Lower Mississippi Valley... ...Temperatures will be 10 to 15 degrees below average over parts of the Southern Plains... ...Tropical Depression Bonnie is forecast to weaken as it moves out over the Western Atlantic... A dynamic storm system will move through the northern and central Plains over the next few days - with the southern flank of the cold front pushing into the southern Plains as high pressure builds in along the Rockies this weekend. Strong to severe thunderstorms will likely develop in the warm, moist airmass present over the northern High Plains and Upper Midwest today and Saturday. The Storm Prediction Center has highlighted much southern Minnesota, Iowa and eastern Nebraska/South Dakota as having a slight risk for severe weather. The southern Plains and lower Mississippi Valley will be rather wet as a deep upper-level low stalls over Texas. With southerly winds transporting moisture from the Gulf of Mexico into the region, numerous showers and thunderstorms are expected across much of Texas, Oklahoma, and Louisiana. Heavy rainfall will likely occur - maintaining a major risk for flash flooding through the weekend. The widespread precipitation and cloud cover will keep temperatures cooler than normal over the Southern Plains. Many locations will be 10 to 15 degrees cooler than averages for early June. Tropical Depression Bonnie will continue tracking out to sea and is expected to weaken to a post-tropical cyclone/remnant low by early Saturday morning. Little additional rainfall is expected. See the National Hurricane Center webpage for more information. Much of the Mid-Atlantic/southern Northeast regions will have favorable conditions for widespread strong to severe thunderstorms to develop Sunday into Monday as the low pressure system approaches the East. The approaching shortwave, combined with ample moisture and daytime heating by mid-afternoon, will trigger the convection. At this point, the Storm Prediction Center has highlighted the strongest storms to focus over northeast North Carolina, eastern Virginia, eastern Maryland and Delaware. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php