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Mesoscale Discussion 1659
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   Mesoscale Discussion 1659
   NWS Storm Prediction Center Norman OK
   1059 AM CST Sun Nov 25 2018

   Areas affected...Central/eastern Kansas...northwest Missouri...far
   southeast Nebraska...southwest Iowa

   Concerning...Blizzard 

   Valid 251659Z - 252200Z

   SUMMARY...1-2 inch/hr snowfall rates expected to continue for
   several more hours across the area, with occasional blizzard
   conditions likely northwest of the surface low.

   DISCUSSION...A 998 mb surface low, currently located across
   southwest Missouri, is expected to continue moving northeast in
   tandem with a pronounced upper-level shortwave trough. The
   upper-level trough will continue to deepen throughout the afternoon,
   with 500-300 mb relative wind maxima expected to traverse the base
   of the trough this afternoon. As a result, large scale ascent is
   expected to increase across the area, where strong 925-700 mb WAA
   and moisture advection ahead and to the north of the surface low are
   currently underway. 

   Increasing divergence aloft associated with the approaching
   aforementioned upper-level wind maxima will encourage further
   deepening of the surface low, with increases in surface wind speeds
   likely. Blizzard conditions have already been reported across
   several portions of central/northeast Kansas into far southeast
   Nebraska, and these conditions are expected to continue across much
   of the outlined area as the low continues eastward. Areas roughly
   from Washington to Kingman County Kansas westward may continue to
   experience near white-out conditions for a few more hours, but the
   threat is expected to clear as snow moves out of the area. 

   Otherwise, 1-2 inch/hr snowfall rates should pivot eastward across
   far northeast Kansas into northwest Missouri and southwest Iowa,
   along the axis of a moisture conveyer belt, where low-level warm
   air/moisture advection should continue to saturate the
   dentritic-growth layer.

   ..Squitieri.. 11/25/2018

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

   ATTN...WFO...LSX...DVN...DMX...EAX...OAX...TOP...ICT...GID...
   DDC...

   LAT...LON   37389637 37379819 37539933 39149858 40259698 40729631
               41119438 41399290 41009233 40309223 39119280 38099510
               37389637 

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Page last modified: November 25, 2018
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