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Mesoscale Discussion 944
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   Mesoscale Discussion 0944
   NWS Storm Prediction Center Norman OK
   0558 PM CDT Sat Jun 03 2017

   Areas affected...Portions of eastern Upper MI...western Lower
   MI...and eastern/central WI

   Concerning...Severe Thunderstorm Watch 304...

   Valid 032258Z - 040030Z

   The severe weather threat for Severe Thunderstorm Watch 304
   continues.

   SUMMARY...An isolated damaging wind/large hail threat continues
   across mainly southern portions of WW 304. Downstream watch issuance
   into western Lower MI is unlikely.

   DISCUSSION...As of 2250Z, a small cluster of thunderstorms is moving
   southeastward along an instability gradient across eastern Upper MI
   and northeastern WI. This cluster has produced isolated damaging
   wind gusts over the past few hours, and it should remain capable of
   isolated strong to locally damaging winds and perhaps marginally
   severe hail over the next several hours. VWP from KMQT shows a
   veering/strengthening wind profile with height, and 30-35 of
   effective bulk shear will continue to promote some storm
   organization with the ongoing convective cluster. Farther to the
   southwest (across central WI), mid-level flow is weaker per VWP from
   KARX, and thunderstorms have remained less organized. An isolated
   severe risk should continue across mainly the southern half of WW
   304 as storms move southeastward. Downstream watch issuance into
   western Lower MI appears unlikely owing to an increasingly hostile
   thermodynamic environment with eastward extent.

   ..Gleason.. 06/03/2017

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

   ATTN...WFO...APX...GRR...MQT...GRB...MKX...ARX...

   LAT...LON   44929074 45388994 45758869 45978782 46458711 46158642
               45478512 45138508 44428543 43918597 43598674 43768934
               44519068 44929074 

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