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Mesoscale Discussion 1660
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   Mesoscale Discussion 1660
   NWS Storm Prediction Center Norman OK
   1010 PM CDT Tue Sep 19 2017

   Areas affected...western and central Minnesota

   Concerning...Severe potential...Watch needed soon 

   Valid 200310Z - 200345Z

   Probability of Watch Issuance...95 percent

   SUMMARY...A severe thunderstorm watch will be issued shortly for
   portions of western and central Minnesota east of Tornado Watch 487.

   DISCUSSION...As a band of ongoing strong/locally severe storms
   continues moving east across the eastern Dakotas, risk for mainly
   damaging winds will spread into adjacent portions of Minnesota. 
   While instability diminishes with eastward extent toward the
   Mississippi Valley, ample CAPE exists across at least western
   portions of the state to support vigorous/locally severe storms.  A
   severe thunderstorm watch will be issued to cover this threat

   ..Goss/Edwards.. 09/20/2017

   ...Please see for graphic product...


   LAT...LON   43419672 46759611 47199458 46929358 43499343 43419672 

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