027 FXUS01 KWBC 090624 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 223 AM EDT Sat May 09 2026 Valid 12Z Sat May 09 2026 - 12Z Mon May 11 2026 ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Southern Plains on Saturday and Sunday... ... There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Lower Mississippi Valley on Saturday and Sunday... A front lingering along the Gulf Coast will produce showers and thunderstorms from the Southeast to the Southern Plains through Sunday. Heavy rain will accompany the thunderstorms producing heavy rain. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Lower Mississippi Valley on Saturday and Sunday. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. In addition, showers and severe thunderstorms will develop over parts of the Southern Plains on Saturday. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Southern Plains from Saturday into Sunday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. On Sunday, showers and severe thunderstorms will redevelop over parts of the Southern Plains and the Lower Mississippi Valley. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Southern Plains and the Lower Mississippi Valley from Sunday into Monday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. Meanwhile, a front extending from the Great Lakes to the Northern High Plains will move southward to the Gulf Coast and eastward to the Eastern Seaboard by Monday. The boundary will produce scattered rain from the Great Lakes to the Northern High Plains on Saturday morning. Showers and thunderstorms will also develop along the front in the late afternoon into the late evening. As the front moves to the East Coast, rain will develop over the Northeast on Sunday into Monday. Showers and thunderstorms will develop over parts of the Mid-Atlantic on Sunday afternoon and continue over the Southeast into Monday morning. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$