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Mesoscale Discussion 180
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   Mesoscale Discussion 0180
   NWS Storm Prediction Center Norman OK
   0833 AM CST Tue Feb 14 2017

   Areas affected...Portions of the Upper TX Coast and vicinity

   Concerning...Tornado Watch 32...

   Valid 141433Z - 141500Z

   The severe weather threat for Tornado Watch 32 continues.

   SUMMARY...The most intense segment of a quasi-linear convective
   system will move through locations near and south of the Houston
   area through 16Z. Damaging winds and a few tornadoes are possible.

   DISCUSSION...The most prominent rear-inflow surges and flanking
   mesovortices attendant to a broader squall line crossing southeast
   TX will move through areas near/south of the Houston area through
   16Z. The HGX VAD wind profile indicates ample low-level SRH (around
   250-300 m2/s2 in the 0-1-km layer), aided by veering winds with
   height. Sufficient moisture influx ahead of the line (dewpoints in
   the middle 60s) will support enough buoyancy for a continued
   damaging wind risk, and line-embedded circulations may pose a
   tornado risk with this most intense portion of the convective
   system. This could affect the Houston area and locations to the

   ..Cohen.. 02/14/2017


   LAT...LON   29289551 29629559 29819535 29909502 29739485 29389497

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