Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 424 AM EDT Wed Apr 27 2016 Valid 12Z Wed Apr 27 2016 - 12Z Fri Apr 29 2016 ...There is a slight risk of severe thunderstorms over the Middle/Lower Mississippi Valley and parts of the Western Gulf Coast... ...Heavy rain possible for parts of the Northern Plains and Western Ohio Valley... ...Heavy rain possible for parts of the Central Gulf Coast... A strong storm over the Central Plains will move eastward to the Eastern Ohio Valley by Thursday evening. The system will produce showers and thunderstorms along and ahead of the associated boundary from parts of the Central/Southern Plains and the Middle/Lower Mississippi Valley that will move eastward to the Mid-Atlantic/Eastern Ohio Valley to the Southeast and parts of the Central Gulf Coast by Thursday. Rain will also develop over parts of the Northern/Central Plains and the Northern High Plains through Thursday afternoon. Rain will move into parts of the Upper Mississippi Valley into parts of the Upper Great Lakes overnight Wednesday and move into parts of the Great Lakes/Western Ohio Valley by Thursday evening. Similarly, highest elevation snow and lower elevation rain will develop over parts of the Northern High Plains and Central Rockies through Thursday morning. A second storm will move onshore over the West Coast and move southeastward to the Southwest/Southern Rockies by Thursday evening. Rain will develop over the Pacific Northwest and Northern California Coast on Wednesday morning that will expand inland to parts of the Northern/Central Rockies by Wednesday evening with snow at some of the highest elevations. The rain will settle over parts of Southern California/Great Basin and the Central Rockies/Southwest by Thursday morning. By Thursday evening rain will expand into parts of the Northern Intermountain Region to parts of the Northern High Plains and into parts of Southern California as well as parts of the Southern Rockies/Southern High Plains. The rain and highest elevation snow will continue over the Great Basin/Southwest to the Central/Northern Rockies through Thursday evening, too. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php