Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 438 AM EDT Fri Apr 29 2016 Valid 12Z Fri Apr 29 2016 - 12Z Sun May 01 2016 ...There are slight risks of severe thunderstorms over parts of the Southern Plains into parts of the Lower Mississippi Valley... ...Heavy rain possible over parts of the Lower Mississippi Valley/Western Tennessee Valley into parts of Eastern Texas... ...Heavy rain possible over parts of the Central Plains... ...Snow over parts of the Central Rockies and Central High Plains... A storm over Texas will slowly move northeastward to Central Plains/Middle Mississippi Valley by Saturday evening. Showers and thunderstorms will develop over the Southern Plains that will move eastward to the Lower Mississippi Valley and northeastward into the Ohio/Tennessee Valleys and parts of the Central/Southern Appalachians by Saturday evening. In addition, rain will develop over parts of the Southern/Central High Plains through Saturday. Snow will develop over parts of the Central Rockies/High Plains also through Saturday. Meanwhile, upper-level energy over the Great Lakes will move eastward off the Northern Mid-Atlantic Coast by Saturday morning. The energy will produce rain over parts of the Great Lakes to the Northern Mid-Atlantic that will move into parts of Southern New England by early Saturday morning before ending. Additionally, a third system over the Pacific Northwest will move southward to Southern California/Northern Mexico by Saturday. The storm will develop rain over parts of the Northwest and rain and highest elevation snow over parts of the Northern Intermountain Region and the Northern Rockies. As the system move south, rain with embedded thunderstorms will develop over parts of the Great Basin with rain extending as far south as Central California and parts of the Southwest by Friday evening. The rain will be restricted to parts of the Great Basin by Saturday morning, expanding into parts of the Southwest/Southern Rockies with rain with embedded thunderstorms by Saturday evening. Similarly, rain will develop over parts of the Northern/Central Rockies by Saturday evening, too. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php