ZCZC SPCSWOMCD ALL ACUS11 KWNS 040133 SPC MCD 040133 OKZ000-TXZ000-040300- Mesoscale Discussion 0255 NWS Storm Prediction Center Norman OK 0833 PM CDT Wed Apr 03 2019 Areas affected...Eastern TX Panhandle...Western/Central OK Concerning...Severe Thunderstorm Watch 36... Valid 040133Z - 040300Z The severe weather threat for Severe Thunderstorm Watch 36 continues. SUMMARY...Threat for hail will persist for the next hour or so. A downstream watch across western and central OK is not anticipated. DISCUSSION...Long-lived supercell currently moving into Tillman and Kiowa Counties in southwest OK continues to produce large hail (i.e. 1.75" per a recent report in Jackson County). Downstream air mass is less unstable, largely a result of cooler temperatures and less low-level moisture, but the storm remains quite strong and well-organized. the well-organized nature of this storm suggests it will likely be able to persist within this less stable environment for next hour or two while gradually decreasing in strength. Farther northwest, increasing low to mid-level flow and resulting warm-air advection has fostered the development of elevated thunderstorms across the eastern TX Panhandle. The air mass here is unstable enough to support updrafts strong enough to produce hail, some of which may be above 1" in diameter. These storms will likely persist for the next several hours as they move eastward into western OK, aided by both a strengthening low-level jet and large-scale ascent attendant to the shortwave moving into the region. Currently, severe thunderstorm coverage is expected to be limited after Severe Thunderstorm Watch 36 expires at 03Z and downstream watch is not anticipated. However, convective trends will be monitored closely. ..Mosier.. 04/04/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OUN...LUB...AMA... LAT...LON 36260063 36530031 36829962 36759863 36249797 34999792 34339834 33839917 33869993 34090034 34820096 35710103 36260063 NNNN