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Mesoscale Discussion 315
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   Mesoscale Discussion 0315
   NWS Storm Prediction Center Norman OK
   0557 PM CDT Tue Mar 22 2022

   Areas affected...portions of central into northern Alabama

   Concerning...Tornado Watch 62...63...

   Valid 222257Z - 230030Z

   The severe weather threat for Tornado Watch 62, 63 continues.

   SUMMARY...The severe threat continues across Tornado Watches
   062-063. Damaging gusts may accompany the stronger bowing segments,
   and a tornado may also occur with the more sustained supercell

   DISCUSSION...A broken QLCS with a history of damaging gusts and
   tornadoes continues to progress toward central Alabama. The line
   consists of both bowing segments and semi-discrete, transient
   supercell structures per MRMS mosaic and KBMX radar data. While
   low-level moisture continues to advect ahead of the line, latest
   surface observations suggest that the QLCS is gradually outpacing
   the eastward advection of better moisture (i.e. 65+ F surface
   dewpoints) and resultant buoyancy (500+ J/kg MLCAPE). As such, the
   overall robustness of the severe wind/tornado threat remains in
   question. Nonetheless, BMX and MXX VWPs have recently shown very
   large, curved hodographs, depicting very strong low-level shear
   capable of supporting damaging gusts and tornadoes. On balance, an
   appreciable severe threat remains in the current low-CAPE/high shear
   environment, and a few more damaging gusts/a couple of tornadoes
   remain possible into early evening.

   ..Squitieri.. 03/22/2022

   ...Please see for graphic product...


   LAT...LON   32358809 32558810 32798801 33468766 34188730 34908709
               34998689 34408648 34018614 33468619 32958648 32588675
               32468724 32368765 32358809 

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