Subj : MESO: Mesoscale Discussion 0734 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Thu May 09 2024 21:40:05 ACUS11 KWNS 092139 SWOMCD SPC MCD 092139=20 GAZ000-ALZ000-MSZ000-092315- Mesoscale Discussion 0734 NWS Storm Prediction Center Norman OK 0439 PM CDT Thu May 09 2024 Areas affected...northeastern Mississippi into a large portion of Alabama Concerning...Severe potential...Watch likely=20 Valid 092139Z - 092315Z Probability of Watch Issuance...95 percent SUMMARY...Convective initiation is ongoing across northern Alabama, and will likely expand over the next 1 to 2 hours. New WW will likely be needed. DISCUSSION...Latest visible satellite imagery shows a developing convective tower near Birmingham, near the intersection of a weak west-to-east baroclinic zone, and an outflow boundary from prior convection that extends southward/south-southeastward into southeastern Alabama. While large-scale ascent appears to be weak, an otherwise volatile environment is in place, with mixed-layer CAPE averaging 3000 to 4000 J/kg on the warm side of these boundaries, and strong mid-level westerly flow (in excess of 60 kt at mid levels). Should additional convection evolve -- as appears likely per the character of the cu field -- substantial severe-weather risk would accompany the storms. This would include potential for strong/damaging winds and very large hail. Some tornado risk could also evolve locally, given the presence of the aforementioned boundaries, though low-level flow/shear appears limited at this time. ...Goss/Hart.. 05/09/2024 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5NxKabEVB19kHmA88m2-FiwxIsu1GAThUawmlWKfW48Plp7mUNHkhCOfcH7R5O5ptbrB1Q177= I9llH8NnoKMpM5xxlI$ for graphic product... ATTN...WFO...FFC...TAE...BMX...HUN...MOB...MEG...JAN... LAT...LON 33578965 34068948 34108732 33468603 31848469 31578538 32008709 32768819 32928935 33578965=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) .