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Mesoscale Discussion 29
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MD 29 graphic

   Mesoscale Discussion 0029
   NWS Storm Prediction Center Norman OK
   0520 PM CST Tue Jan 16 2018

   Areas affected...Middle/upper TX Coast...Southeast LA

   Concerning...Winter mixed precipitation 

   Valid 162320Z - 170315Z

   SUMMARY...Ongoing mixed winter precipitation is expected to persist
   for the next few hours. Primary precipitation type will likely be

   DISCUSSION...Regional radar data shows an area of relatively heavier
   precipitation across portions of the middle TX coast moving
   east-southeastward. Higher reflectivities have been noted across
   portions of Wharton and Fort Bend counties with corresponding lower
   correlation coefficients. This represents a broad area of melting
   hydrometeors, which corroborates the 0 degree C isothermal layer
   from 850-700 mb shown on recent RAP forecast soundings. Given the
   presence of this layer, a transition to all snow seems unlikely,
   with the most dominant precipitation type remaining sleet for the
   next few hours. Precipitation will gradually taper off during this
   time, from northwest to southeast, as subsidence and dry air
   advection continue to dry the low-level levels.

   ..Mosier.. 01/16/2018

   ...Please see for graphic product...


   LAT...LON   29029662 29889598 30459418 30489280 30079202 29569228
               29789325 29679381 29389480 28659593 29029662 

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