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Mesoscale Discussion 666
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   Mesoscale Discussion 0666
   NWS Storm Prediction Center Norman OK
   0913 PM CDT Mon May 06 2024

   Areas affected...Parts of southwest into central/northeast OK

   Concerning...Tornado Watch 189...

   Valid 070213Z - 070315Z

   The severe weather threat for Tornado Watch 189 continues.

   SUMMARY...A threat for tornadoes, hail, and severe gusts will
   approach the I-35 corridor in central OK through 10 PM CDT, with
   redevelopment still possible into southwest OK.

   DISCUSSION...A tendency toward upscale growth has been noted this
   evening from northern into west-central OK, with embedded supercells
   tending to traverse the outflow of downstream storms, resulting in a
   gradually expanding cold pool. As a result, cells have generally
   struggled to become tornadic, despite a very favorable environment
   across the region. While the storm mode is currently rather
   unfavorable, any persistent discrete supercell will still pose a
   tornado threat. Conditional strong tornado potential remains evident
   across the region, with strong buoyancy and deep-layer shear, and
   0-1 km SRH of around 300 m2/s2. Line-embedded tornadoes will also be
   possible, especially if any more prominent bowing segments can

   The greatest short-term tornado threat may be associated with the
   trailing cells in the cluster, if they can avoid being undercut by
   outflow. These cells will approach the I-35 corridor in central OK
   through 10 PM CDT. The discrete cell moving into southeast Osage
   County in northeast OK will also pose a tornado threat. 

   Farther southwest, a cluster of cumulus remains evident on IR
   satellite into southwest OK and northwest TX, and redevelopment
   remains possible across this region a little later this evening, as
   the Pacific cold front continues to move eastward, and increasing
   ascent noted on WV imagery begins to overspread the warm sector.
   While evolution of any later development remains somewhat uncertain,
   supercells capable of all severe hazards would be possible if
   additional storms develop.

   ..Dean.. 05/07/2024

   ...Please see for graphic product...


   LAT...LON   35499894 35929840 36449764 36499755 36769692 36809615
               36439601 36099640 35869672 35389723 34659875 34509927
               34569964 34829970 35009943 35499894 

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