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Mesoscale Discussion 988
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   Mesoscale Discussion 0988
   NWS Storm Prediction Center Norman OK
   0246 PM CDT Sun Jun 11 2017

   Areas affected...Eastern Upper Michigan into northern Lower

   Concerning...Severe Thunderstorm Watch 314...

   Valid 111946Z - 112145Z

   The severe weather threat for Severe Thunderstorm Watch 314
   continues.

   SUMMARY...A threat of damaging winds continues across the watch
   area.

   DISCUSSION...A long-lived convective system is now crossing over
   northern Lake Michigan, with sporadic cellular development just
   ahead of it near the northern coast. This line of storms has a long
   history of producing wind damage. 

   While instability levels decrease to the east, surface observations
   and satellite imagery show warming continues across much of Lower
   Michigan, with temperatures rising into the mid 80s along with weak
   pressure falls. In addition, southerly low-level flow continues to
   increase ahead of the MCS. Therefore, while the line may not be as
   strong as it was previously, conditions may prove sufficient for a
   continued localized damaging wind threat.

   ..Jewell.. 06/11/2017

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

   ATTN...WFO...APX...MQT...GRB...

   LAT...LON   46458610 46498422 46118355 45458306 44748304 44428335
               44428411 44608550 44688629 44878672 45288689 46078655
               46458610 

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Page last modified: June 11, 2017
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