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Mesoscale Discussion 1227
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   Mesoscale Discussion 1227
   NWS Storm Prediction Center Norman OK
   1030 PM CDT Mon Jul 03 2017

   Areas affected...Southern/eastern OK...Far north TX

   Concerning...Severe Thunderstorm Watch 393...394...

   Valid 040330Z - 040430Z

   The severe weather threat for Severe Thunderstorm Watch 393, 394
   continues.

   SUMMARY...Widespread strong to isolated severe wind gusts should
   persist with a QLCS shifting east-southeast. Downstream WW issuance
   into parts of north-central TX is possible, but the overall threat
   may gradually diminish across the Red River.

   DISCUSSION...A QLCS extended from Osage to Jackson counties in OK
   with 40-55 kt wind gusts common along it. Surging portions of the
   line have forward movement around 35 kt. MCV with this line was
   centered near Stillwater and has generally tracked east-southeast.
   With the line having passed through the largest plume of
   instability, coverage of severe wind gusts are likely near-peak.
   With the nocturnal increase MLCIN being more pronounced across parts
   of north and north-central TX, a gradually diminish wind threat may
   occur here as outflow surges across the Red River. Farther
   northeast, the organized nature of the MCV will probably result in a
   longer-lasting wind threat persisting in eastern OK.

   ..Grams.. 07/04/2017

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

   ATTN...WFO...TSA...FWD...OUN...

   LAT...LON   36179609 36319543 36149504 35799486 35089501 33879599
               33349683 33109741 33229821 33579885 34029887 34499755
               35059667 36179609 

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Page last modified: July 04, 2017
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