Mesoscale Discussion 0963
   NWS Storm Prediction Center Norman OK
   1013 PM CDT Sun Jun 21 2020

   Areas affected...west-central OK

   Concerning...Severe Thunderstorm Watch 293...

   Valid 220313Z - 220445Z

   The severe weather threat for Severe Thunderstorm Watch 293
   continues.

   SUMMARY...Convective inhibition will continue to increase due to a
   cooling boundary layer.  West-central OK may be where the risk for
   severe gusts (60-65 mph) is greatest for the next 1-2 hours.

   DISCUSSION...Subjective surface mesoanalysis indicates a
   moist/instability axis is located from north TX into far western OK
   with an instability gradient (implied via cooler surface
   temperatures) arcing from southeast OK north-northwestward into the
   greater OKC metro area.  The 7pm Norman, OK observed sounding showed
   1300 J/kg MUCAPE and appreciable convective inhibition.  Radar
   mosaic shows a well-organized squall line over northwest OK moving
   southeast.  The more intense cores are preferentially developing on
   the western flank of the squall line from the northeast TX Panhandle
   into Ellis County, OK.  As the squall line moves southeast, a risk
   for strong to locally severe gusts will continue, but the threat
   appears most concentrated over west-central OK.  In the past hour,
   OK Mesonet sites in northwest OK have observed gusts around 55 mph. 
   Peak gusts ranging from 55-65 mph are expected for the next few
   hours.  The spatial coverage of the higher gusts will probably
   continue to slowly become more isolated as the thunderstorms move
   into central OK during the early overnight.

   ..Smith.. 06/22/2020

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

   ATTN...WFO...OUN...AMA...

   LAT...LON   35700044 35759806 35119801 35149987 35700044