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Storm Prediction Center Mesoscale Discussion 28

Published Date and Time: 2025-01-09 23:05:04












Mesoscale Discussion 28
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   Mesoscale Discussion 0028
   NWS Storm Prediction Center Norman OK
   1003 PM CST Thu Jan 09 2025

   Areas affected...portions of central into southern Arkansas and
   northern Mississippi

   Concerning...Freezing rain 

   Valid 100403Z - 100900Z

   SUMMARY...Freezing rain should continue across central and southern
   AR over the next several hours, with freezing rain also expected to
   gradually spread into MS with time. Accretion rates of .06 in/3 hr
   are possible in spots.

   DISCUSSION...Strong low-level warm-air and moisture advection
   continues to overspread the Lower MS Valley as a pronounced
   mid-level trough approaches. Wintry mixed precipitation persists
   across portions of southern into central AR, with several instances
   of freezing rain noted by surface observations. Surface temperatures
   hover around or just below the freezing mark over several locales,
   and this should continue through the overnight hours, until the
   primary precipitation band clears the region. While some 925-850 mb
   warming is expected within the strong low-level WAA regime, surface
   wet bulb temperatures below 0C should support continued freezing
   rain tonight. A couple instances of .06 in/3 hr accretion rates may
   occur within the heavier portions of the main precipitation band.
   Freezing rain may develop into northern MS around or before 09Z, as
   also shown by some of the 00Z HREF guidance.

   ..Squitieri.. 01/10/2025

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

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

   LAT...LON   33609409 33679412 34259382 34739241 35018976 34968856
               34668827 34278839 33978922 33789059 33509191 33169284
               33239392 33609409 


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