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Mesoscale Discussion 42
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   Mesoscale Discussion 0042
   NWS Storm Prediction Center Norman OK
   0541 AM CST Sat Jan 14 2017

   Areas affected...far southwestern MO into northeastern OK and parts
   of central OK

   Concerning...Freezing rain 

   Valid 141141Z - 141445Z

   SUMMARY...A corridor of heavier rates of freezing rain (0.05-0.20
   inch per 3 hours) is forecast from 1145-1445 UTC from the I-35
   corridor north of OKC northeastward towards the Joplin, MO area.

   DISCUSSION...Radar mosaic during the early morning has shown an
   increase in convective shower coverage across central OK
   northeastward into northwestern AR and southwestern MO.  Surface
   analysis places the freezing line over south-central OK
   northeastward to near the OK/AR/MO tri-state region.  North of this
   line, freezing rain will occur.  Sporadic occurrences of lightning
   have been noted within the discussion area from near Stillwater
   northeastward to the KS/MO/OK border region.  Given the weak
   elevated buoyancy per 12 UTC area raobs, precipitation rates will
   likely continue to be augmented for the next several hours as
   convective showers and a few thunderstorms train east-northeastward
   during the early morning.  Rates in the range of 0.05-0.20 inch per
   3 hours are expected.

   ..Smith.. 01/14/2017


   LAT...LON   36039765 37129437 36969396 36269570 35649740 36039765 

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