110 FXUS01 KWBC 102001 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 PM EDT Fri Jul 10 2026 Valid 00Z Sat Jul 11 2026 - 00Z Mon Jul 13 2026 ...Repeated threats for strong to severe thunderstorms and flash flooding from the central/southern Plains eastward to the east-central U.S into the weekend... ...Dangerous heat is forecast to build over portions of the north-central and western U.S. this weekend while the heat lingers over the Southeast... A slow moving cold front will gradually advance southward from the northeastern U.S into the central Plains through the weekend. The front will be associated with an anomalous plume of moisture which will contribute to scattered to numerous thunderstorms, peaking in coverage during the afternoon to early overnight hours. Severe thunderstorm and flash flood threats will extend from the central High Plains into portions of the Ohio/Tennessee Valleys and Mid-Atlantic states. For the remainder of today into tonight, a dual severe/flash flood threat will exist across Missouri into western portions of Kentucky and Tennessee. A Slight Risk of severe thunderstorms is in place from SPC, overlapping with WPC's Moderate Risk of Excessive Rainfall in place over southeastern MO where a stripe of 5 to 10+ inches fell Thursday night. Should additional heavy rains impact these highly vulnerable soil and stream conditions across southeastern Missouri through Saturday morning, considerable flood impacts will be likely. The severe thunderstorm and flash flood threats will shift south for Sunday, still covering portions of the Ohio Valley and southeastern Missouri, but also including portions of Oklahoma to the southern Appalachians. Combining with the severe storm threats will be higher than usual high heat and humidity for parts of the Southeast. Heat index values of 105 to locally over 110 degrees will be possible for eastern portions of the Carolinas into Florida through Saturday. Some relief in the form of clouds and rain will decrease the hazardous heat on Sunday over the Carolinas but above average temperatures will continue over Florida. Farther west, from the Intermountain West to the northern Plains, dangerous heat is expected to unfold through the weekend with triple digit highs and potential for daily maximum temperature records both days. Sunday will be the hotter of the two days with the greatest departures from average extending from central and eastern Montana into North Dakota. It is here where forecast highs on Sunday will range from 100 to 110 degrees (locally 110+ possible) which will be about 15 to 25 degrees above normal for mid-July. If you will be situated within any of these areas forecast to experience extreme heat, stay hydrated, take frequent breaks and limit outdoor activities if possible. Otto Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$