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Mesoscale Discussion 906
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   Mesoscale Discussion 0906
   NWS Storm Prediction Center Norman OK
   0501 PM CDT Sun May 28 2017

   Areas affected...Northeast TX...Northern LA

   Concerning...Severe potential...Watch likely 

   Valid 282201Z - 282300Z

   Probability of Watch Issuance...80 percent

   SUMMARY...Strong thunderstorms will spread across northeast TX into
   northern LA this evening.  Scattered storms will likely attain
   severe levels with damaging winds and large hail the expected
   threats.

   DISCUSSION...A narrow corridor of strong boundary-layer heating has
   contributed to an axis of strong instability across east TX into
   extreme western LA.  Surface-3km lapse rates are now on the order of
   7 C/km reflective of afternoon temperatures in the mid 80s.  Over
   the last hour or so an upward evolving complex of storms has slowly
   matured over northeast TX.  This activity should spread/develop
   eastward along an ill-defined outflow boundary draped across
   northern LA.  Damaging winds and large hail can be expected with
   this convection.

   ..Darrow/Guyer.. 05/28/2017

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

   ATTN...WFO...JAN...SHV...

   LAT...LON   32939482 32999221 32679143 31879191 31579505 32939482 

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Page last modified: May 28, 2017
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