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Mesoscale Discussion 729
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   Mesoscale Discussion 0729
   NWS Storm Prediction Center Norman OK
   0944 PM CDT Wed May 11 2022

   Areas affected...Eastern Minnesota...Western Wisconsin

   Concerning...Tornado Watch 203...204...

   Valid 120244Z - 120415Z

   The severe weather threat for Tornado Watch 203, 204 continues.

   SUMMARY...A bowing line of intense thunderstorms will continue
   eastward across western Wisconsin this evening, posing a risk of
   locally damaging wind gusts.

   DISCUSSION...Latest radar loop shows a large bow echo complex moving
   into western WI at 35-40 knots. Numerous reports of damaging wind
   gusts and hail have been reported in the past 2 hours as the
   activity moved across southern MN.  These storms are now primarily
   north of the surface warm front, with the near-surface layer
   becoming more stable with time.  Storms are also moving away from
   steeper lapse rates and CAPE, suggesting an overall weakening trend
   should occur during the next few hours.  Nevertheless, locally
   damaging wind gusts will remain possible along the leading edge of

   Farther south, an isolated storm remains over Freeborn county of
   southern MN.  These storm is just south of the surface warm front,
   and near an outflow boundary that surged ahead of the bow earlier
   this evening.  Enhanced low-level shear and vorticity in vicinity of
   the boundaries could aid in a localized severe or tornado threat for
   another 1-2 hours in this area.

   ..Hart.. 05/12/2022

   ...Please see for graphic product...


   LAT...LON   45079267 45889339 46269303 46269155 45799060 44849042
               44129152 43529277 43359408 43709409 44369323 45079267 

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