Mesoscale Discussion 0057
   NWS Storm Prediction Center Norman OK
   1117 PM CST Thu Jan 16 2020

   Areas affected...Northern Oklahoma...Southern Kansas...Southwestern
   Missouri

   Concerning...Freezing rain 

   Valid 170517Z - 170915Z

   SUMMARY...Freezing rain will increase across southern Kansas and
   southwestern Missouri over the next 2-4 hours. Rates may approach
   0.05"/hr.

   DISCUSSION...Large canopy of precipitation is gradually expanding
   north across the southern/central Plains within a corridor of
   isentropic ascent. At the surface, a wedge of sub-freezing
   boundary-layer air is gradually shallowing across northern
   OK/southern KS as strong low-level warm advection persists ahead of
   a short-wave trough. With significant warming expected in the 1-3km
   layer, the onset of any mixed precipitation should change to
   freezing rain as the morning progresses. Profiles along/north of
   I-70 are currently quite dry in the lowest 1km, thus several hours
   of moistening will be necessary before heavier, mixed precipitation
   develops across this region.

   ..Darrow.. 01/17/2020

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

   ATTN...WFO...SGF...EAX...TOP...ICT...OUN...DDC...AMA...

   LAT...LON   38389882 38419546 37889408 37359375 36989403 37209502
               36989690 36349904 37000029 37930006 38389882