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Mesoscale Discussion 1780
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   Mesoscale Discussion 1780
   NWS Storm Prediction Center Norman OK
   0357 PM CST Mon Dec 04 2017

   Areas affected...Much of southwest...central and northeast
   MO...extreme southeast KS...and extreme west central IL

   Concerning...Severe Thunderstorm Watch 518...

   Valid 042157Z - 042330Z

   The severe weather threat for Severe Thunderstorm Watch 518
   continues.

   SUMMARY...Severe storms will continue to develop across severe
   thunderstorm watch 518 as a cold front advances east through this
   region.  Damaging winds remain the primary threat, though a brief
   tornado cannot be ruled out.  Counties can be cleared from the west
   with the cold front passage.

   DISCUSSION...At 2140Z, mosaic radar imagery indicated a broken band
   of strong to severe storms extending from north-central to southwest
   MO, with additional storms in extreme southeast KS.  This activity
   will continue to advance through a narrow corridor of generally
   marginal instability (surface-based CAPE less than 1000 J/kg). 
   Strong effective bulk shear up to 50 kt is supporting organized
   storms with a few supercells detected per area WSR-88Ds.  SGF VWP
   indicated vertically veering and strengthening low-level winds which
   favor a threat for damaging winds, while a tornado risk cannot be
   ruled out, though weak buoyancy may temper the latter threat.

   ..Peters.. 12/04/2017

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

   ATTN...WFO...ILX...LSX...DVN...LZK...SGF...EAX...TSA...

   LAT...LON   36999499 38799398 39899334 40589307 40379200 40149089
               39929058 39439061 38309164 37179219 36539213 36489337
               36569460 36929483 36999499 

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Page last modified: December 04, 2017
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