Subj : DAY1SVR: Day 1 Convective Outlook To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Tue Mar 07 2023 06:00:02 ACUS01 KWNS 070559 SWODY1 SPC AC 070558 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1158 PM CST Mon Mar 06 2023 Valid 071200Z - 081200Z ....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN PLAINS... ....SUMMARY... Thunderstorms associated with marginally severe hail are expected to develop this evening into tonight across parts of the southern Plains. ....Southern Plains... Mid-level flow will become southwesterly today across the southern Plains, as a subtle shortwave trough moves into the central Plains. At the surface, a quasi-stationary front will remain across north Texas. In response to the southwesterly mid-level flow, warm advection will take place across much of the southern Plains. Elevated instability will increase today to north of the front from northwest Texas into southern and central Oklahoma. By late this afternoon into the evening, RAP and NAM forecast soundings have MUCAPE reaching the 1000 to 1500 J/kg range. In response to increasing low-level flow and large-scale ascent this evening, scattered thunderstorms are expected to develop from northwest Texas into southern Oklahoma. The instability combined with effective shear around 50 knots, evident on forecast soundings, should be enough for marginally severe hail with the stronger updrafts. The hail threat could linger in the overnight period, but should remain isolated. ...Broyles/Supinie.. 03/07/2023 $$ = = = 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 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .