Storm Prediction Center Mesoscale Discussion 690

   Mesoscale Discussion 0690
   NWS Storm Prediction Center Norman OK
   0619 PM CDT Sat May 09 2026

   Areas affected...western Oklahoma...far eastern Texas Panhandle and
   northwest Texas

   Concerning...Severe Thunderstorm Watch 194...

   Valid 092319Z - 100215Z

   The severe weather threat for Severe Thunderstorm Watch 194
   continues.

   SUMMARY...Large hail threat persists into western Oklahoma and
   northwest Texas. A few damaging gusts may develop anywhere within
   the watch.

   DISCUSSION...Several supercells currently extend from the eastern TX
   Panhandle into west-central OK, with reports from 1.50" to 2.01"
   diameter. These cells are interacting with the moisture/instability
   axis while the boundary layer remains near peak heating.

   Midlevel west/northwest winds of 40 kt atop backed/southeasterly
   surface winds are creating favorable shear profiles to support the
   hail cells, and the increasing low-level jet may enhance inflow and
   rightward motion later this evening before inhibition increases.

   Farther north, a line of high-based convection persists from central
   KS into the OK Panhandle, where dewpoints are only in the 30s and
   40s F. However, an increasing low-level jet this evening will bring
   50s F dewpoints northward into the area, possibly supporting a
   degree of strengthening along any existing outflow surge.

   ..Jewell.. 05/09/2026

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...OUN...DDC...LUB...AMA...

   LAT...LON   33939988 34469993 35380016 35900040 36560050 36740054
               36949992 37269930 36909865 36359833 35219834 34379802
               33959797 33659817 33569838 33539891 33729966 33939988 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN