Mesoscale Discussion 2160 NWS Storm Prediction Center Norman OK 0642 PM CDT Thu Oct 24 2024 Areas affected...south-central into northeast KS...northwest into north-central MO Concerning...Severe potential...Watch unlikely Valid 242342Z - 250145Z Probability of Watch Issuance...20 percent SUMMARY...Strong to locally severe storms will be possible this evening, with a threat of isolated hail and strong to severe wind gusts. DISCUSSION...Storm coverage is increasing early this evening from central KS into northwest MO. Storms to the north/northeast of Kansas City have developed just to northeast of a warm front and are likely somewhat elevated. Persistent low-level warm/moist advection will help to sustain these storms as they approach north-central MO. Moderate elevated buoyancy (with MUCAPE of 1000-1500 J/kg) and sufficient deep-layer shear could support marginal supercell structures with a threat for isolated large hail. Also, despite this convection being somewhat elevated, a dry near-surface layer beneath the elevated moist plume could support some stronger wind gusts this evening as storms spread northeastward. Farther west, scattered storm development is ongoing from south-central into northeast KS, as a southeastward-moving cold front begins to intercept a pre-frontal surface trough and relatively greater instability. While low-level moisture remains rather limited, strong diurnal heating has resulted in MLCAPE increasing into the 500-1000 J/kg range, along with weakening MLCINH. Increasing deep-layer flow/shear associated with an approaching midlevel shortwave trough will support some organized convection through the evening. Rather strong low-level flow (30-40 kt in the 1-3 km layer per regional VWPs) and steep low-level lapse rates will support potential for strong to locally severe gusts within this regime, especially if any organized clustering occurs. Isolated hail will also be possible, especially into east-central/northeast KS and northwest MO, where somewhat more favorable moisture and buoyancy will be in place. ..Dean/Hart.. 10/24/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...EAX...OAX...TOP...ICT... LAT...LON 37829798 38729706 39009674 39919589 40459437 40469379 40479286 40379259 39899309 39569346 39029418 38269515 37799564 37359641 37279699 37289743 37369820 37829798
Storm Prediction Center Mesoscale Discussion 2160
24
Oct