Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Sun Sep 07 2025 19:10:01 ACUS03 KWNS 071909 SWODY3 SPC AC 071908 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0208 PM CDT Sun Sep 07 2025 Valid 091200Z - 101200Z ....NO SEVERE THUNDERSTORM AREAS FORECAST... ....SUMMARY... A few strong storms are possible over the central Plains and Upper Midwest Tuesday, but overall severe potential is low. ....Central/Southern High Plains... Upper ridging will build east into the High Plains on Tuesday. At the surface, a lee trough will extend southward from western NE into the TX Panhandle during the afternoon. Southerly low-level flow will maintain 60s F dewpoints beneath a plume of steep midlevel lapse rates. As a result, MLCAPE from 1500-2500 J/kg will be common. However, forecast guidance suggests at least weak capping may persist across much of the narrow warm/moist sector, leading to uncertainty in storm development/coverage. Nevertheless, if storms can initiate and persist, supercell wind profiles will support convection capable of large hail and strong gusts from western/central NE into western KS, and the OK/TX Panhandle vicinity. Uncertainty remains too high to delineate an area at this time, but probabilities could become necessary in subsequent outlooks. ....Upper Midwest... A stalled surface boundary will extend from eastern SD into central/northern MN and the upper Great Lakes vicinity on Tuesday. Warm advection atop the boundary in a modestly sheared and weakly unstable environment will support periods of showers and thunderstorms through much of Tuesday. Overall severe potential is expected to remain low as convection should remain to the cool side of the boundary and be elevated, but a stronger storm or two could produce small hail or locally gusty winds. ...Leitman.. 09/07/2025 $$ = = = To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.28-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .