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Mesoscale Discussion 557
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   Mesoscale Discussion 0557
   NWS Storm Prediction Center Norman OK
   0522 AM CDT Fri May 08 2020

   Areas affected...plarts of northeastern Texas into southern Arkansas
   and northern Louisiana

   Concerning...Severe Thunderstorm Watch 174...

   Valid 081022Z - 081145Z

   The severe weather threat for Severe Thunderstorm Watch 174
   continues.

   SUMMARY...Risk for locally damaging wind gusts continues within WW
   174.

   DISCUSSION...Latest radar loop shows the primary surge of the bowing
   convective band now moving across the Arklatex region, near the
   northeastern fringe of the Texas instability axis.  The surging
   portion of the bow recently passed through Texarkana, producing a
   near-severe-level wind gust of 47 kt.  As the bow continues moving
   southeastward at near 50 kt, additional strong wind gusts remain
   possible locally.

   With that said, uncertainty exists with respect to the southeastward
   extension of any severe wind risk.  Based on current extrapolation,
   the leading edge of the bow will begin to near the edge of the watch
   within about an hour (roughly 1130Z).  An areal extension of the
   watch -- or new WW issuance downstream -- is not out of the
   question, though trends suggest that severe risk may continue to
   gradually diminish with time.

   ..Goss.. 05/08/2020

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

   ATTN...WFO...JAN...LZK...LCH...SHV...FWD...

   LAT...LON   33089568 33019466 33089354 34119306 33869181 31479191
               31319350 31919445 33089568 

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