Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 PM EDT Wed Sep 26 2018 Valid 00Z Thu Sep 27 2018 - 00Z Sat Sep 29 2018 ...There is a slight risk of severe thunderstorms over parts of the Northeast... ...Heavy rain possible over parts of the Southern Appalachians and the Lower Rio Grande Valley... ...Temperatures will be 10 to 15 degrees below average over parts of the Northern Plains... A front extending from the Northeast southwestward to the Western Gulf Coast will move off the Northeast/Northern Mid-Atlantic Coast by Thursday morning while the southern half of the boundary will be quasi-stationary from the Southern Mid-Atlantic southwestward to the Western Gulf Coast through Friday. Rain with embedded thunderstorms will develop along the northern half of the front from the Northeast to the Northern Mid-Atlantic that will move off the Northeast/Northern Mid-Atlantic Coast by Thursday morning. Showers and thunderstorms will also develop along the southern part of the boundary from the Southern Mid-Atlantic across the Southern Mid-Atlantic to the Tennessee Valley and across parts of the Central/Western Gulf Coast that will be limited to the immediate Central/Western Gulf Coast by Friday. In addition, showers and thunderstorms will continue over parts of the Southern Mid-Atlantic/Southeast through Friday, too. Meanwhile, a second front extending from the Northern Plains into West-Central Canada will move southeastward to the Great Lakes/Western Ohio Valley into parts of the Central Plains then roughly banked up against the Rockies by Friday. Rain will develop near the boundary over the Northern Plains that will move eastward into the Great Lakes into the Middle Mississippi Valley westward to the Central Plains into the Northern Rockies by Friday, too. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php