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Mesoscale Discussion 855
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   Mesoscale Discussion 0855
   NWS Storm Prediction Center Norman OK
   0147 AM CDT Sat May 27 2017

   Areas affected...Northwest Kansas

   Concerning...Severe Thunderstorm Watch 271...

   Valid 270647Z - 270815Z

   The severe weather threat for Severe Thunderstorm Watch 271

   SUMMARY...Strong/locally severe storms -- developing in repeated
   bands -- continue moving rapidly east across northwest Kansas,
   through WW 271, where severe risk continues.

   DISCUSSION...Latest surface analysis depicts a low in eastern CO
   with a warm/stationary front extending eastward across the middle
   section of KS.  Several bands of storms continue moving out of
   eastern CO into northwest KS, just north of the low/front, with
   repeated development occurring and continuing to track across some
   of the same areas.

   The most substantial area of storms from a radar perspective remains
   the well-organized/small-scale bow moving across Graham County KS,
   and adjacent parts of southern Norton and northern Trego Counties. 
   Damaging winds remain a risk with this storm, along with potential
   for hail.

   Meanwhile, risk for locally damaging winds and large hail -- and
   possibly a brief tornado -- continues with a trailing cluster of
   storms crossing Gove County at this time, where a funnel cloud was
   recently reported.  

   With a 45 kt southerly low-level jet indicated by area VWP data
   providing favorable low-level ascending inflow, and a front aligned
   roughly parallel to the mean flow/storm motion, it would appear that
   the environment is favorable for this convection to continue
   redeveloping and spreading east, along with continued severe risk. 
   Initial storms -- including the lead/bowing band of convection --
   will begin to move into newly issued WW 273 over the next hour.

   ..Goss.. 05/27/2017

   ...Please see for graphic product...


   LAT...LON   38250199 39940203 39999967 39139950 38250020 38250199 

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