Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 434 PM EDT Wed Aug 31 2016 Valid 00Z Thu Sep 01 2016 - 00Z Sat Sep 03 2016 ...Heavy rain possible for parts of the Southern Mid-Atlantic... ...Heavy rain possible for parts of the Eastern Gulf Coast and Southeast Coast... A front extending from the Northeast to the Ohio/Middle Mississippi Valleys into the Central Plains will move eastward off the Northeast/Mid-Atlantic Coast while lingering over parts of the Southeast to the Lower Mississippi Valley by Friday. The system will produce showers and thunderstorms from the Northeast to the Ohio Valley/Middle Mississippi Valley to the Central Plains that will move off the Northeast and Northern Mid-Atlantic Coast by late Thursday night/early Friday morning. The showers and thunderstorms will also linger over parts of the Southern Mid-Atlantic/Southeast through Friday. The boundary will sweep T. D. 8 away from the East Coast by Thursday. Check the National Hurricane Center's latest forecast for the most up to date storm track and intensity. Meanwhile, T. D. 9 over the Eastern Gulf of Mexico is forecast to develop into a Tropical Storm and move northeastward into the Southeast by late Thursday night. The system will produce showers and thunderstorms over the Eastern Gulf Coast into the Southeast Coast through Friday. Check the latest forecast from the National Hurricane Center for the most up to date storm track and intensity. In the meantime, upper-level energy over the Southern/Central High Plains will drift into the Southern Plains/Central High Plains by Friday. The energy will produce showers and thunderstorm over the Central/Southern High Plains and the Central/Southern Plains through Friday. In addition, monsoonal moisture and daytime heating will aid in producing showers and thunderstorms over parts of the Southwest/Eastern Great Basin and the Central/Southern Rockies during the afternoon into late evening hours on Wednesday and Thursday. Furthermore, a developing system/front over the Northern Intermountain Region to part of the Great Basin will lift a warm front into South-Central Canada overnight Thursday while parts of the boundary will remain over parts of the Great Basin into parts of the Northern High Plains by Thursday evening into Friday. Associated onshore flow off the Pacific will produce rain over parts of the Pacific Northwest into Friday. The storm will also produce showers and thunderstorms over parts of the Northern Rockies/Northern Intermountain Region into parts of the Great Basin that will expand into parts of the Northern High Plains overnight Wednesday and into parts of the Northern Plains Thursday into Friday. The showers and thunderstorms will continue over parts of the Northern/Central Rockies through Friday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php