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Mesoscale Discussion 367
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   Mesoscale Discussion 0367
   NWS Storm Prediction Center Norman OK
   0614 PM CDT Sun Apr 12 2020

   Areas affected...western Arkansas...northwestern
   Louisiana...northeastern Texas...and far eastern Oklahoma

   Concerning...Severe Thunderstorm Watch 108...111...

   Valid 122314Z - 130045Z

   The severe weather threat for Severe Thunderstorm Watch 108, 111
   continues.

   SUMMARY...The threat for mainly hail and wind continues across the
   discussion area.

   DISCUSSION...Ongoing storms across WWs 108 and 111 continue in a
   weakly to moderately unstable environment characterized by 500 J/kg
   MUCAPE in northwestern Arkansas to 2500 J/kg MUCAPE in northwestern
   Louisiana.  At least weak instability will likely be sustained into
   the evening as cooling aloft associated with a vigorous mid-level
   shortwave trough continues eastward across Oklahoma and northern
   Texas.  Furthermore, although low-level shear is weak, fast flow
   aloft (90+ knots at 500 hPa) is supporting continued organization
   with cells and linear segments.  CAMs support this regime continuing
   eastward through more of WW 111 over time.  Hail and damaging wind
   gusts are the primary threats with this activity.

   ..Cook.. 04/12/2020

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

   ATTN...WFO...LZK...SGF...SHV...TSA...FWD...

   LAT...LON   35799390 35989392 36219388 36559367 36559301 36199258
               35219249 34509237 32989252 32129281 32079362 32369538
               32529584 33059577 33849516 35799390 

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