ZCZC SPCSWOMCD ALL ACUS11 KWNS 030008 SPC MCD 030008 TXZ000-030215- Mesoscale Discussion 1139 NWS Storm Prediction Center Norman OK 0708 PM CDT Sun Jun 02 2024 Areas affected...West and Southwest Texas Concerning...Severe Thunderstorm Watch 378... Valid 030008Z - 030215Z The severe weather threat for Severe Thunderstorm Watch 378 continues. SUMMARY...The severe threat across west Texas is expected to continue over the next few hours. Large hail and severe wind gusts will be possible, along with an isolated tornado threat. The severe threat may affect areas of the far western Texas Hill Country later this evening, where a watch could be needed. DISCUSSION...The latest hi-resolution radar imagery from Midland, TX shows a small cluster of severe storms located to the northeast of Big Bend National Park. One supercell is ongoing in far eastern Brewster County. The airmass ahead of this cluster is strongly unstable, with the RAP analyzing MLCAPE in the 3000 to 4500 J/kg range. RAP forecast soundings in this area have 0-6 km shear near 50 knots, with 700-500 mb lapse rates around 7.5 C/km. This environment will continue to be favorable for supercells with large hail. Hailstones greater than 2 inches in diameter, along with a few severe wind gusts will be possible. Forecast soundings also have 0-3 km storm-relative helicity in the 150 to 200 m2/s2 range, suggesting that any tornado threat will remain isolated. The tornado threat may persist for a couple more hours. The cluster is expected to remain organized for at least a few more hours, as it moves to the east of WW 378. A new watch could become necessary if the cluster remains intense. ..Broyles.. 06/03/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...EWX...SJT...MAF... LAT...LON 30930244 30450275 30030276 29740225 29680154 29560114 29450062 29590013 30089994 30650024 31050137 30930244 NNNN