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Mesoscale Discussion 717
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   Mesoscale Discussion 0717
   NWS Storm Prediction Center Norman OK
   0656 PM CDT Tue Jun 12 2018

   Areas affected...much of central and northern Wisconsin

   Concerning...Severe potential...Watch possible 

   Valid 122356Z - 130230Z

   Probability of Watch Issuance...40 percent

   SUMMARY...Scattered storms are expected to form this evening, with a
   marginal hail and wind threat.

   DISCUSSION...Visible imagery shows a CU field increasing from near
   MSP eastward across northern WI, ahead of a developing cold front
   and where strong height falls are expected later tonight. Low-level
   winds will remain relatively veered/westerly, but the increasing
   large-scale lift should result in scattered storms forming over WI,
   and possible moving into Upper MI. Lengthening hodographs may
   support a few long-lived storms, and MLCAPE on the order of 1000
   J/kg may support marginal hail or wind. However, given the strong
   shortwave trough, trends will be monitored for greater severe
   potential this evening.

   ..Jewell/Hart.. 06/12/2018

   ...Please see for graphic product...


   LAT...LON   45499247 46638813 46538711 45938668 44648716 44348769
               44318917 44329113 44559184 44849236 45139263 45499247 

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