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Mesoscale Discussion 542
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   Mesoscale Discussion 0542
   NWS Storm Prediction Center Norman OK
   0928 PM CDT Tue May 04 2021

   Areas affected...Portions of the FL Panhandle...far southeastern
   AL...and southern/central GA

   Concerning...Severe Thunderstorm Watch 151...

   Valid 050228Z - 050400Z

   The severe weather threat for Severe Thunderstorm Watch 151

   SUMMARY...An isolated strong to damaging wind threat continues in
   the short term, but storm intensity should gradually decrease this
   evening. Downstream watch issuance is not expected.

   DISCUSSION...A long-lived MCS is beginning to show signs of
   decreasing intensity over the past hour or so, with cloud top
   temperatures warming in IR satellite imagery, lightning flash rates
   diminishing, and reflectivity cores aloft weakening. With the
   exception of the FL Panhandle, instability gradually wanes with
   eastward extent into central GA based on the latest mesoanalysis
   estimates. The southern portion of the line in far southeastern AL
   and the FL Panhandle has become oriented more parallel to the mean
   mid-level flow aloft, and has slowly decelerated. Still, isolated
   strong to damaging winds around 50-60 mph may occur with any of the
   stronger segments of the line over the next hour or so. A couple of
   measured wind gusts around 50 mph have recently occurred, and the
   ASOS in Albany GA reported a wind gust of 62 mph at 0211Z. Given the
   expectation that overall storm intensity should continue to decrease
   through the remainder of the evening, downstream watch issuance is
   not expected.

   ..Gleason.. 05/05/2021

   ...Please see for graphic product...


   LAT...LON   30608667 31258496 31778385 32368365 32918386 33128392
               33018307 32538253 31198305 30158414 29638508 30208590
               30368640 30608667 

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