Subj : MESO: Mesoscale Discussion 0433 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon Apr 07 2025 12:41:17 ACUS11 KWNS 071241 SWOMCD SPC MCD 071240=20 SCZ000-GAZ000-FLZ000-071445- Mesoscale Discussion 0433 NWS Storm Prediction Center Norman OK 0740 AM CDT Mon Apr 07 2025 Areas affected...parts of swrn through e cntrl GA...wrn and cntrl SC Concerning...Severe potential...Watch possible=20 Valid 071240Z - 071445Z Probability of Watch Issuance...40 percent SUMMARY...At least low probabilities for an additional tornado or two and/or locally damaging surface gusts continues in scattered thunderstorm activity overspread the region through 10-11 AM EDT.=20 It is still not clear that a severe weather watch is needed in the near term, but trends will continue to be monitored for this possibility. DISCUSSION...Stronger boundary-layer instability, characterized by CAPE near or above 1000 J/kg, still remains confined to a narrow pre-frontal corridor across the western Florida Panhandle through southwestern into southern portions of central GA. However, some cooling loft appears to be contributing to at least weak destabilization north-northeastward toward the South Carolina Piedmont. The front, with a couple of weak waves along it, will continue a slow eastward progression through mid to late morning, with the Rapid Refresh indicating that a moderate south-southwesterly low-level jet (in excess of 40 kt around 850 mb) will maintain sizable, clockwise-curved low-level hodographs within the instability axis. Cloud cover spreading downstream of the stronger ongoing convective development probably will slow boundary-layer destabilization, and it is not certain that there will be a substantive further increase in thunderstorm intensities in the near term. However, the MCV, which apparently recently contributed to a tornado south-southwest of the Greater Atlanta area, continues east-northeastward toward the South Carolina Piedmont, and it not clear that the downstream environment will not support an additional relatively short-lived tornado or two. Farther south, in the corridor of better instability, focused along the low-level jet axis near/north and east of the Albany into Macon vicinities, there may also be continuing potential for short-lived intensification of meso-vortices embedded with the ongoing narrow band of convection. ...Kerr/Mosier.. 04/07/2025 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_yMqXq6FRsWEtmLcoXqKz4ZDuGkM3upV05plj2038_unGSsPcyiMUAJoPGmTaWO62ZmE4LpNR= f8w8begZp2-S3i76QI$ for graphic product... ATTN...WFO...CHS...CAE...GSP...FFC...TAE... LAT...LON 32118371 32698381 33708337 34688218 33778104 30448443 30508493 32118371=20 MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH =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) .