Mesoscale Discussion 0079
   NWS Storm Prediction Center Norman OK
   0757 AM CST Wed Feb 21 2018

   Areas affected...West-central/North Texas into southern Oklahoma

   Concerning...Winter mixed precipitation 

   Valid 211357Z - 211800Z

   SUMMARY...Winter mixed precipitation mainly in the form of sleet and
   bouts of freezing rain will continue to expand generally
   northeastward across the Texas Low Rolling Plains and Big Country
   into southern Oklahoma through the morning.

   DISCUSSION...Scattered showers and some thunderstorms have increased
   early this morning especially across the Low Rolling Plains of
   west-central into western North Texas. An increasing
   northeastward-spreading zone of ascent atop the cold side of a
   southeastward-advancing strong cold front will likely to support
   some additional increase in northeastward-spreading precipitation
   through the morning. A mix of sleet and freezing rain is likely
   across the region as ample warm air aloft supports partial if not
   full full meting atop an approximately 1 km deep near-ground cold
   layer. Freezing rain should be most common as the predominant
   precip-type especially in areas just behind the surface front
   (roughly within 50-75 miles), with sleet more common in areas
   farther north and/or associated with the thunderstorm-producing
   convective elements.

   ..Guyer.. 02/21/2018

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

   ATTN...WFO...FWD...OUN...SJT...LUB...MAF...

   LAT...LON   34639727 33339723 32559797 31909923 31690106 32230173
               33640134 34480053 35149856 34929754 34639727