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Mesoscale Discussion 193
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   Mesoscale Discussion 0193
   NWS Storm Prediction Center Norman OK
   0833 PM CST Sun Feb 19 2017

   Areas affected...Portions of central TX northward through central OK

   Concerning...Severe Thunderstorm Watch 34...

   Valid 200233Z - 200430Z

   The severe weather threat for Severe Thunderstorm Watch 34

   SUMMARY...A risk for isolated severe storms continues in
   remaining-valid portions of Watch 34. While strong-storm potential
   may spread east/north of Watch 34 later this evening, additional
   Watch issuance will not be needed.

   DISCUSSION...Clusters of convection continue increasing in coverage
   along a line from west-central OK southward into western parts of
   central and south TX. Deep meridional flow oriented parallel to
   amalgamating outflow boundaries along the eastern flank of the
   weakly organizing convection suggests an overall tendency for this
   activity to become undercut. One exception in the short-term may
   continue across parts of south-central/southwest Oklahoma, where
   deep flow is oriented more obliquely to portions of the leading edge
   of an organizing convective cluster near the Red River. Locally
   damaging wind gusts may accompany this activity, along with sporadic
   bowing segments occasionally ingesting surface-based inflow farther
   south. Eastward propagation of this activity will continue through
   late evening, though increasingly stable boundary-layer conditions
   owing to nocturnal cooling will tend to lessen the severe risk with
   time. The severe risk will diminish west of the aforementioned
   convective line.

   ..Cohen.. 02/20/2017


   LAT...LON   30829926 33439815 34939785 36109751 36199662 35439635
               33369660 31009789 30359896 30829926 

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