Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 356 AM EDT Wed May 24 2017 Valid 12Z Wed May 24 2017 - 12Z Fri May 26 2017 ...There is a slight risk of severe thunderstorms over the Southeast... ...Heavy rain possible over parts of Florida... An upper-level low over the Middle Mississippi Valley will slowly move eastward to the Ohio Valley/Central Appalachians by Thursday evening. The system will produce showers and thunderstorms over the Southeast that will expand into parts of the Ohio Valley/Central Appalachians and parts of the Tennessee Valley by Wednesday evening. The showers and thunderstorms will mainly move off the Mid-Atlantic/Southeast Coast by Thursday morning. Some of the showers and thunderstorms lingering over parts of the Mid-Atlantic into Thursday evening. In addition, rain will develop over parts of Upper Great Lakes/Ohio Valley into parts of the Northern Mid-Atlantic and into parts of the Lower Mississippi Valley that will be limited to parts of the Middle Mississippi Valley by Wednesday evening. The rain will move into parts of the Ohio Valley and the Lower Great Lakes overnight Wednesday. The rain will also move into the Great Lakes/Central Appalachians and the Northeast by Thursday evening. Meanwhile, a front over the Northern High Plains to parts of the Great Basin will move eastward to the Northern/Central Plains into the Central Rockies/Great Basin by Thursday evening. Areas of rain and highest elevation snow will develop over parts of the Northern Rockies that will continue over the area with rain developing over parts of the Pacific Northwest by Thursday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php