Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 412 AM EDT Tue Apr 26 2016 Valid 12Z Tue Apr 26 2016 - 12Z Thu Apr 28 2016 ...There is a slight risk of severe thunderstorms over parts of the Central/Southern Plains and the Middle Mississippi... ..There is an embedded area of moderate risk of severe thunderstorms over parts of the Central/Southern Plains... ...Heavy rain possible over parts of the Northern Plains to the Middle Mississippi Valley and parts of the Ohio Valley... ...Heavy rain possible over parts of the Southern Plains... A strong storm over the Central Plains will move slowly eastward to the Middle Mississippi Valley by Wednesday evening with a quasi-stationary front extending from the Mid-Atlantic/Southern New England to the Central Plains. Showers and thunderstorms will develop along and near the boundary from parts of the Mid-Atlantic Coast westward to the Central Plains. The front will sage southward to parts of the Southern Mid-Atlantic westward to the Middle Mississippi Valley by Wednesday evening. Similarly, showers and thunderstorms will develop along and near the boundary from parts of the Mid-Atlantic roughly northwestward to parts of the Northern Plains/Upper Mississippi Valley. In addition, a cold front associated with the system will move from the Central/Southern High Plains eastward to the Middle/Lower Mississippi Valley by Wednesday. Showers and thunderstorms will develop along and ahead of the front from parts of the Central Plains to the Southern Plains/Lower Mississippi Valley on Tuesday afternoon advancing eastward to the Middle/Lower Mississippi Valley by Wednesday evening, with showers and thunderstorms developing over parts of the Central/Eastern Gulf Coast on Wednesday afternoon into evening. Furthermore, rain and higher elevation snow will develop over parts of the Northern Plains/High Plains to the Northern Rockies and from parts of the Great Basin to the Central High Plains from Tuesday morning into Wednesday evening. Meanwhile, an upper-level trough over the Eastern Pacific will move to the West Coast by Wednesday evening. The system will produce rain along the Pacific Northwest and Northern California Coast by early Wednesday morning that will move inland to parts of the Northern/Central Rockies by Wednesday afternoon producing snow at the higher elevations of the Northern/Central Rockies and Great Basin. The rain and higher elevation snow will continue from parts of the Northwest to Northern/Central California eastward to the Northern/Central Rockies through Wednesday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php