Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 356 AM EDT Sun Jul 19 2015 Valid 12Z Sun Jul 19 2015 - 12Z Tue Jul 21 2015 ...There is a slight risk of severe thunderstorms from parts of Northern New England to the Ohio Valley... ...There is a slight risk of severe thunderstorms over parts of the Central High Plains... ...Heavy rain possible from parts of the Ohio Valley/Central Appalachians to the Middle Mississippi Valley... A front extending from the Great Lakes to the Central High Plains will move eastward to the Northeast/Mid-Atlantic Coast then westward to the Central High Plains by Monday evening. Showers and thunderstorms will develop along and ahead of the boundary from parts of the Northeast to the Great Lakes/Ohio Valley and the Middle Mississippi Valley that will move off the Northeast Coast overnight Sunday while extending westward from the Mid-Atlantic to the Central/Southern Rockies through Monday evening. A second front over West-Central Canada will move southeastward to the Upper Great Lakes to the Central Plains and along the foothills of the Northern Rockies by Monday. Showers and thunderstorms will develop along the boundary over the Northern High Plains on Monday morning into Monday evening. In addition, showers and thunderstorms will develop along the front over parts of the Middle Mississippi Valley/Central Plains on Monday morning, expanding along the front into the Great Lakes to the Central Plains by Monday evening. Monsoonal moisture and moisture associated with the remains of T. D. Delores will aid in triggering showers and thunderstorms over parts of the Southwest/Great Basin and the Central/Southern Rockies along with parts of Central/Southern California through Monday. Additionally, moisture pooling over the Southeast and upper-level energy rotating around an upper-level high over Texas will produce showers and thunderstorms over parts of the Southeast/Central Gulf Coast also through Monday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php