ACUS11 KWNS 061647 SWOMCD SPC MCD 061647 OKZ000-KSZ000-TXZ000-061845- Mesoscale Discussion 0649 NWS Storm Prediction Center Norman OK 1147 AM CDT Mon May 06 2024 Areas affected...southern KS...western/central OK...and eastern TX Panhandle Concerning...Severe potential...Tornado Watch likely Valid 061647Z - 061845Z Probability of Watch Issuance...95 percent SUMMARY...PDS Tornado Watch issuance will be needed ahead of this portion of the dryline during the early afternoon. At least a few long-track, discrete supercells are expected, becoming capable of producing intense (EF3+) tornadoes. DISCUSSION...16Z surface analysis placed the dryline from near Garden City, KS to Lubbock, TX, with the Pacific cold front lagging westward with southern extent in the southern High Plains. Airmass continues to destabilize ahead of the dryline, with MLCIN becoming weak into at least western OK and the TX Panhandle where boundary-layer warming has been more prominent in cloud breaks. The expectation is for initial dryline/Pacific front development to occur in southwest KS and build south into the eastern TX Panhandle/western OK vicinity by late afternoon. Ample low to deep-layer shear will support several supercells with very large hail, tornadoes, and severe gusts probable. The impinging of an intense upper jet from NM into western OK over the next several hours, along with strengthening of low-level flow this evening, will yield an increasingly favorable kinematic environment for long-track and intense supercells capable of significant tornadoes, especially with southern extent in western/central OK. ..Grams/Smith.. 05/06/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ICT...OUN...DDC...LUB...AMA... LAT...LON 38020038 38419902 38439838 38209755 37769729 37349720 35949717 34649722 34029793 34069974 34280034 35140050 36740063 38020038