Subj : DAY1SVR: Day 1 Convective Outlook To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon May 26 2025 00:46:47 ACUS01 KWNS 260046 SWODY1 SPC AC 260045 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0745 PM CDT Sun May 25 2025 Valid 260100Z - 261200Z ....THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE SOUTHERN PLAINS... ....SUMMARY... Scattered severe thunderstorms are expected tonight across the southern Plains extending into the northern Gulf States region. Very large hail, severe winds, and perhaps a few tornadoes will be most concentrated across the southern Plains. ....01z Update... Latest water-vapor imagery suggests a weak short-wave trough has translated into the southern High Plains. This feature is ejecting well ahead of the primary upper trough that has settled into UT/AZ. Scattered severe thunderstorms have developed ahead of the minor disturbance, concentrated along a corridor from the TX South Plains into central OK. 1km flow is decidedly east of south across this region, and some increase in LLJ is expected over the next several hours. Multiple thunderstorm clusters may ultimately evolve across the southern Plains due to storm mergers and increasing low-level warm advection after sunset. Overall, earlier severe probabilities will be mostly maintained as upscale growth is expected through the mid-late evening hours. Downstream, leading edge of a rejuvenated MCS is propagating southeast across northern MS/southern AR. This squall line should advance into northern AL over the next few hours as a substantial post-squall line cold pool has developed. Damaging winds can be expected, along with some risk for hail. ...Darrow.. 05/26/2025 $$ = = = 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 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .