Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 443 PM EDT Tue May 05 2015 Valid 00Z Wed May 06 2015 - 00Z Fri May 08 2015 ...There is a slight risk of severe thunderstorms over parts of the Southern Plains... ...Heavy rain possible over parts of the Southern/Central Plains... A quasi-stationary front extending from the Mid-Atlantic westward to the Central High Plains will slowly weaken by Thursday morning. The boundary will aid in triggering afternoon and evening showers and thunderstorms along and near the front. Rain will develop along the front during nighttime and morning hours through Thursday. In addition, upper-level energy off the Southeast Coast will aid in producing showers and thunderstorms over parts of Florida and the Southeast Coast. A front extending from the Northern High Plains southwestward into the Great Basin will move eastward to the Northern/Central Plains then roughly westward to the Central Rockies by Thursday. Moisture flowing northward out of the Western Gulf of Mexico will move into the Northern Plains. Showers and thunderstorms will develop ahead of a dryline over the Southern Plains through Thursday morning. Afternoon and evening showers/thunderstorms will develop over parts of the Great Basin/Southwest to parts of the Rockies through Wednesday. Nighttime and morning rain will also develop over parts of the Central Rockies to the Northern High Plains and expanding onto the Northern Plains by Wednesday morning. Showers and thunderstorms will develop over parts of the Northern/Central Plains by Wednesday evening/Thursday morning. Afternoon and evening showers and thunderstorms along with nighttime and morning rain will develop over parts of the Great Basin into the Northern Rockies Wednesday into Thursday. Rain and snow will also develop over some of the highest elevations of parts of the Rockies into the Sierras. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php