Mesoscale Discussion 0897
   NWS Storm Prediction Center Norman OK
   1117 AM CDT Wed Jun 10 2020

   Areas affected...parts of central and northern Lower MI

   Concerning...Severe potential...Severe Thunderstorm Watch likely 

   Valid 101617Z - 101715Z

   Probability of Watch Issuance...95 percent

   SUMMARY...A severe-wind bowing segment near Grand Rapids is
   projected to move into northern Lower MI and beyond severe
   thunderstorm watch 274 by 130pm EDT.  A new severe thunderstorm
   watch will be needed from near Saginaw Bay northward encompassing
   much of northern Lower MI.  A severe thunderstorm watch will also be
   needed for southeast Lower MI and may be issued in coordination with
   the Alpena and Detroit NWS Forecast Offices.

   DISCUSSION...Radar imagery from KGRR shows a severe bowing segment
   moving northeast at 60 mph.  The Holland, MI ASOS (KBIV) observed a
   63 kt gust at 1145am EDT with passage of this bow.  The bowing
   segment and a cluster farther east near Lansing are projected to
   move east/north of the severe thunderstorm watch 274 by 130pm EDT. 
   The airmass downstream of these storms over central and northern
   Lower MI has destabilized with surface temperatures in the upper 80s
   with dewpoints in the upper 60s to lower 70s deg F.  RAP forecast
   soundings show 2000-2500 J/kg with 45 kt effective shear.  The
   near-storm environment will continue to favor severe clusters
   capable of damaging gusts (55-75 mph), which will result in swaths
   of scattered to widespread wind damage.

   ..Smith/Thompson.. 06/10/2020

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

   ATTN...WFO...DTX...APX...GRR...

   LAT...LON   42818406 44028464 44198604 45348511 45688431 45678320
               44888253 42818406