ZCZC SPCSWOMCD ALL ACUS11 KWNS 290047 SPC MCD 290047 TXZ000-290215- Mesoscale Discussion 1060 NWS Storm Prediction Center Norman OK 0747 PM CDT Tue May 28 2024 Areas affected...Portions of the Rio Grande Valley Concerning...Severe potential...Watch likely Valid 290047Z - 290215Z Probability of Watch Issuance...80 percent SUMMARY...Severe wind gusts near 60-70 mph and marginally severe hail will accompany a developing MCS through the late evening hours. DISCUSSION...Several robust updrafts, and a couple of supercells, will continue moving eastward off the higher terrain of Chihuahua Mexico. Cell mergers appear likely, and the downstream environment remains favorable for maintenance considering easterly surface winds around 15 to 20 kt. Convergence zone balance is anticipated between this surface flow and westerly 0-3 km shear vectors. In addition, a very unstable and undisturbed air mass remains in place across south Texas. ..Barnes/Smith.. 05/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CRP...EWX...BRO... LAT...LON 28910078 29130042 29099943 28639880 26759832 26259860 26429908 27049942 27549949 27809984 28110007 28910078 NNNN