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Mesoscale Discussion 48
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   Mesoscale Discussion 0048
   NWS Storm Prediction Center Norman OK
   1136 AM CST Mon Feb 05 2018

   Areas affected...Iowa and vicinity

   Concerning...Heavy snow 

   Valid 051736Z - 052330Z

   SUMMARY...A zone/band of heavy snow -- falling at local rates in
   excess of 1" per hour -- will continue moving across the Iowa
   vicinity this afternoon.

   DISCUSSION...Latest satellite imagery shows a short-wave trough
   within west-southwest flow aloft moving across the Nebraska/Kansas
   vicinity at this time, with a small/well-defined baroclinic leaf
   evident over the Iowa area.  Within this leaf structure, radar
   continues to reveal an area of moderate to locally heavy snowfall,
   crossing the Missouri valley and overspreading parts of Iowa at this
   time.

   As QG ascent associated with the short-wave trough continues
   shifting east-southeastward, expect the zone of heaviest
   precipitation to move across central and into eastern Iowa over the
   next several hours.  Some areas will likely experience snowfall
   rates in excess of an inch per hour for a period of a couple of
   hours, and a longer duration of moderate snowfall adding to the
   overall accumulation.

   ..Goss.. 02/05/2018

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

   ATTN...WFO...ILX...DVN...DMX...OAX...

   LAT...LON   41199617 42319520 42669220 42219083 41379017 40799057
               40589167 40849495 41199617 

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Page last modified: February 05, 2018
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