US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 27

Published Date and Time: 2025-01-09 20:00:02



   Mesoscale Discussion 0027
   NWS Storm Prediction Center Norman OK
   0527 PM CST Thu Jan 09 2025

   Areas affected...portions of central Arkansas

   Concerning...Winter mixed precipitation 

   Valid 092327Z - 100330Z

   SUMMARY...Mixed wintry precipitation should continue into the
   evening hours, with heavier snow likely later tonight.

   DISCUSSION...700 mb warm-air and moisture advection is increasing
   across AR with the approach of the mid-level trough, which is
   currently progressing across the southern Plains. The low-level
   warm-air/moisture advection regime is supporting heavier
   precipitation across central AR, as shown by both MRMS mosaic and
   KLZK regional radar imagery. Bright banding is ongoing across
   southwestern into central AR, with reports of heavier snow rates
   just north of the bright banding area. RAP forecast soundings shows
   temperatures within the 850-700 mb layer hovering around the
   freezing mark, which will continue to support a mix of snow, sleet,
   and perhaps some freezing rain over the next few hours. With time,
   cooling within this layer will promote primarily heavy snow,
   including 1+ inch/hr rates, later this evening.

   ..Squitieri.. 01/09/2025

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

   ATTN...WFO...MEG...LZK...SHV...

   LAT...LON   34399402 34719379 35069249 35199141 35159078 34899054
               34319109 34079242 34079301 34149368 34399402 



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