Subj : MESO: Mesoscale Discussion 0766 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon May 13 2024 16:46:10 ACUS11 KWNS 131646 SWOMCD SPC MCD 131645=20 TXZ000-131815- Mesoscale Discussion 0766 NWS Storm Prediction Center Norman OK 1145 AM CDT Mon May 13 2024 Areas affected...Portions of south-central TX Concerning...Severe Thunderstorm Watch 235... Valid 131645Z - 131815Z The severe weather threat for Severe Thunderstorm Watch 235 continues. SUMMARY...A threat for very large hail will continue with ongoing supercells. Severe/damaging winds should become an increasing concern this afternoon as convection attempts to grow upscale into a bowing cluster. DISCUSSION...An intense supercell is ongoing to the south of the San Antonio TX metro as of 1635Z. With extreme instability present (4000+ J/kg MUCAPE), along with strong deep-layer shear of 45-50 kt, a supercell mode will likely be maintained in the short term. Steep mid-level lapse rates noted on area 12Z soundings from DRT/CRP/BRO will aid robust updraft accelerations and a threat for large to very large hail, potentially up to 2-3 inches in diameter. To the north of this supercell into central TX, destructive updraft interference/interactions have occurred, with a messier storm mode observed and a lesser threat for large hail. With time, expectations are for convection to gradually grow upscale into a small bowing cluster as activity continues eastward through the afternoon. A greater threat for severe/damaging winds of 60-70 mph should exist once this mode transition occurs. ...Gleason.. 05/13/2024 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_egsXkRsEWNc5Wurywt8D2IY9qZEPWvMqEN3OsaEKMzqO8veLzRpp6Oa5XVYAKjSQrAP_saC0= vXKP9TfcrHNgU23j7Y$ for graphic product... ATTN...WFO...CRP...EWX... LAT...LON 29369992 29849930 29949802 29829692 29259685 28799707 28559734 28679902 28679989 28990016 29369992=20 =3D =3D =3D 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) .