MD 1117 CONCERNING SEVERE POTENTIAL…WATCH POSSIBLE FOR TX PANHANDLE
Mesoscale Discussion 1117 NWS Storm Prediction Center Norman OK 1103 AM CDT Thu Jun 05 2025 Areas affected...TX Panhandle Concerning...Severe potential...Watch possible Valid 051603Z - 051800Z Probability of Watch Issuance...40 percent SUMMARY...An isolated threat for large hail may develop through midday but the overall severe risk/evolution remain uncertain. Will monitor convective trends for the possibility of a Watch. DISCUSSION...Visible-satellite/radar mosaic shows thunderstorms developing within a moist/warm conveyor in the TX Panhandle primarily to the north of I-40. There appears to be an arcing stationary standing wave-like feature that this convection initiated. Surface analysis indicates a relatively stable/moist near-surface layer with temperatures in the mid 60s deg F and dewpoints in the lower 60s. Some thinning of the stratus is expected over the next few hours beneath a capping layer likely near 750 mb (per 12 UTC Midland raob). It is unclear whether this convection is able to transition to become surface-based over the next few hours. The Amarillo, TX WSR-88D VAD shows flow veering and strengthening with height to around 50-kt at 7 km AGL and an elongated hodograph. Expecting continued but gradual thinning of the stratus and heating of the boundary layer to result in a very unstable airmass developing during the early to mid afternoon as MLCAPE increases from 1000 to 3000+ J/kg. Given this increase in buoyancy and shear supporting supercells, the recently developed late morning updrafts may become supercellular and pose a risk for large hail over the next 1-2 hours. Low confidence exists regarding the convective scenario towards the early afternoon. ..Smith/Thompson.. 06/05/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OUN...AMA... LAT...LON 35320202 35540245 35870245 36260191 36279998 35999973 35429976 35190025 35320202 MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN