761 FXUS01 KWBC 101954 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 353 PM EDT Thu Sep 10 2026 Valid 00Z Fri Sep 11 2026 - 00Z Sun Sep 13 2026 ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Ohio Valley/Central Appalachians on Thursday... ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Southwest on Friday and the Middle Mississippi Valley/Central Plains on Saturday.... ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Upper Mississippi Valley and Northern/Central Plains on Friday... A front extending from the Mid-Atlantic to the Ohio/Tennessee Valleys across parts of the Lower Mississippi Valley/Southern Plains on Thursday will retreat to the Southern Mid-Atlantic by Saturday. The system will produce showers and thunderstorms from the Southern Mid-Atlantic to the Southern Plains, producing heavy rain. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Ohio Valley/Central Appalachians on Thursday into Friday morning. 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 thunderstorms with heavy rain will develop over parts of the Southwest on Friday into Saturday morning. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Southwest on Friday into Saturday morning. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas, and burn scars being the most vulnerable. A second front over the Pacific Northwest into the Northern High Plains on Thursday evening will move inland to the Upper Midwest to the Middle Mississippi Valley/Central Plains by Saturday. The boundary will produce rain over parts of the Northern Intermountain Region on Thursday evening and expand across parts of the Northern High Plains overnight Thursday into Friday. Moreover, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Upper Mississippi Valley and Northern/Central Plains on Friday through Saturday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. On Friday evening, showers and thunderstorms will develop over parts of the Middle Mississippi Valley/Central Plains and continue into Saturday evening. The showers and thunderstorms will produce heavy rain over parts of the Middle Mississippi Valley/Central Plains. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Middle Mississippi Valley/Central Plains on Saturday into Sunday morning. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, low-lying areas, and burn scars being the most vulnerable. Furthermore, showers and thunderstorms will develop over parts of the Southern Mid-Atlantic southward to Florida and westward to the Middle/Lower Mississippi Valley through Friday evening. On Saturday morning, rain will develop over parts of the Ohio Valley/Mid-Atlantic and become showers and thunderstorms over parts of the Lower Great Lakes/Northeast Mid-Atlantic, extending southward to Florida and along the Gulf Coast. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php Extreme Heat Key Messages available at: https://www.wpc.ncep.noaa.gov/key_messages/LatestKeyMessage_1.png $$