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Mesoscale Discussion 311
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   Mesoscale Discussion 0311
   NWS Storm Prediction Center Norman OK
   0256 PM CDT Tue Mar 22 2022

   Areas affected...Western Alabama

   Concerning...Tornado Watch 62...

   Valid 221956Z - 222200Z

   The severe weather threat for Tornado Watch 62 continues.

   SUMMARY...Some threat for damaging wind gusts and QLCS tornadoes
   will continue into western Alabama this afternoon. The threat will
   generally be greater in west-central Alabama where moisture/buoyancy
   is greater.

   DISCUSSION...Storms within central/eastern Mississippi have largely
   remained linear this afternoon. There are some discrete cells ahead
   of the the primary line. The most substantial of these discrete
   storms is moving northeast through Kemper County, MS and has
   recently shown a TDS on KDGX radar. The overall expectation is for
   these cells to be overtaken by the line in the next 60-90 minutes.
   Going forward, wind damage and QLCS tornadoes are expected to be the
   primary threats as convection moves into western Alabama. The
   environment ahead of the convective line has been able to warm to
   near 80 F in several places. However, moisture return in Alabama has
   been much less than in Mississippi. Consequently, MLCAPE values have
   remained from 300-400 J/kg in northern Alabama to 500-700 in
   west-central Alabama. Due to the forward speed of the line, it is
   uncertain how much further destabilization can occur through the
   afternoon. In any event, some potential for damaging wind gusts and
   QLCS tornadoes will exist given the strong low-level winds and
   low-level hodograph turning observed in region VWPs.

   ..Wendt.. 03/22/2022

   ...Please see for graphic product...


   LAT...LON   31168850 31768866 33088856 34248840 34918748 34938738
               34798695 33288697 31418754 31098794 31168850 

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