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Mesoscale Discussion 291
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   Mesoscale Discussion 0291
   NWS Storm Prediction Center Norman OK
   1128 AM CDT Sun Mar 24 2024

   Areas affected...Northeastern Iowa

   Concerning...Heavy snow 

   Valid 241628Z - 241830Z

   SUMMARY...Heavy snow with potential for 1" per hour rates and low
   visibility across northeastern Iowa over the next couple of hours.

   DISCUSSION...A convective band has been moving steadily northeast
   through central Iowa this morning. Temperatures near the band are
   hovering around to just below freezing. Lightning activity has begun
   to decrease in this band, with CAM guidance indicating the band
   should weaken with time as it moves northeastward. Even so, given
   the heavy nature of this band, temperatures will likely lower with
   wet-bulb cooling within the heaviest precipitation. Temperatures
   across northeastern Iowa are in the low 30s, with dew points in the
   mid 20s to lower 30s.  Periods of heavy snow will be possible as a
   result, with rates approaching 1"/hr and low visibility (given
   surface winds around 20-25 mph).

   ..Thornton/Hart.. 03/24/2024

   ...Please see for graphic product...


   LAT...LON   43439427 42889411 42389321 42119257 41989200 42259182
               42599166 43359190 43479217 43539287 43489403 43439427 

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