SPC AC 030051

   Day 1 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0751 PM CDT Tue Jun 02 2020

   Valid 030100Z - 031200Z

   ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS FAR
   NORTHERN IA INTO PORTIONS OF SOUTHERN/CENTRAL WI AND WEST-CENTRAL
   LOWER MI...

   ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
   EASTERN WY INTO THE WESTERN NE PANHANDLE AND ACROSS PORTIONS OF THE
   GREAT LAKES...

   ...SUMMARY...
   Severe thunderstorms are most likely across parts of the Upper
   Midwest, centered on southern portions of Minnesota and Wisconsin by
   early this evening, eventually spreading into at least Lower
   Michigan overnight. Damaging winds and large hail will be the
   primary hazards.

   ...Great Lakes Vicinity...

   Severe probabilities have been trimmed and are inline with line of
   severe line of convection from parts of northern IA/far southeast MN
   eastward across central WI. There have been many reports in the last
   60-90 minutes of measured wind speeds from 60-75 mph all along this
   line of storms. Intense winds could continue for a few more hours as
   convection continues to shift east/southeast this evening. While
   large hail was reported earlier during the late afternoon, most
   recent reports have been marginal. Thus, the 30% SIG hail has been
   removed. Severe storms should continue into tonight across parts of
   central lower MI. 

   ...OH/PA/NY...

   Storms are currently developing over Ontario and should progress
   southeastward through tonight, emerging over portions of western NY
   and possibly northwestern PA/northeast OH after 03z. This convection
   will mainly be capable of locally damaging gusts and hail.

   ...Eastern WY...Northeast CO...NE Panhandle and Southwest SD...

   Storms continue to move off of higher terrain this evening. These
   storms will mainly be capable of hail and locally strong gusts. The
   Marginal and Slight risk area was trimmed some across central WY to
   account for latest trends in observational data and CAMs. For more
   details reference MCD 786.

   ..Leitman.. 06/03/2020

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