Mesoscale Discussion 0073
   NWS Storm Prediction Center Norman OK
   0938 PM CST Tue Feb 04 2020

   Areas affected...Portions of West/Northwest Texas

   Concerning...Winter mixed precipitation 

   Valid 050338Z - 050845Z

   SUMMARY...Heavy snow will develop across portions of West and
   Northwest TX this evening where snow rates will be 1-1.5" per hour.
   Heavy sleet is expected just east of this region.

   DISCUSSION...Large-scale forcing for ascent is visibly spreading
   across West TX ahead of a short-trough that continues to dig into
   northern Mexico. Latest satellite imagery supports this with a
   pronounced baroclinic leaf maturing across far West TX. Over the
   last hour or so radar data suggests the snow line is advancing
   steadily east, extending from Midland County - Scurry County -
   Stonewall County. Surface observations, and mPING data, exhibit snow
   across these counties and the snow/sleet line should advance another
   county or so east into the early morning hours. An increasing precip
   shield is expected to spread across northwest TX into southwestern
   OK with the leading edge of this activity expected to be primarily
   sleet. As deeper forcing spreads northeast, sleet should change to
   snow.

   While some freezing rain may be noted across portions of the Big
   Country, the primary winter threat will be due to sleet/snow.

   ..Darrow.. 02/05/2020

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

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

   LAT...LON   32250231 34279972 33739867 31550142 32250231