Mesoscale Discussion 1843
   NWS Storm Prediction Center Norman OK
   0713 AM CST Sun Dec 13 2020

   Areas affected...portions of southern Kansas and into central and
   northern Oklahoma and vicinity

   Concerning...Heavy snow 

   Valid 131313Z - 131815Z

   SUMMARY...Snowfall rates near 1" per hour can be expected through
   this morning across the discussion area.

   DISCUSSION...Latest WV imagery shows the upper low moving
   east-southeastward across eastern New Mexico, and is expected to
   shift across the southern High Plains and turn eastward along and
   just south of the Red River Valley.  Ahead of this feature,
   widespread precipitation is ongoing -- including snow from the Texas
   Panhandle into western and northern Oklahoma, showers and
   thunderstorms across southern Oklahoma and into north Texas, and a
   narrow zone of mixed precipitation in between.

   With time, as the upper system -- and associated/weak surface low
   currently over the Texas South Plains area -- continue moving
   eastward, a changeover to all snow is expected across central and
   northeast Oklahoma.  While snow gradually tapers from west to east
   across the Texas Panhandle, strong large-scale ascent ahead of the
   upper system will support a broad zone of moderate to heavy snow 
   across central and northeast Oklahoma and southeastern Kansas.

   ..Goss.. 12/13/2020

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

   ATTN...WFO...SGF...TSA...ICT...OUN...

   LAT...LON   37069418 36049449 35489704 35169827 35319934 36329855
               36879777 37189700 37349547 37069418