Storm Prediction Center Mesoscale Discussion 250

   Mesoscale Discussion 0250
   NWS Storm Prediction Center Norman OK
   0748 PM CDT Wed Mar 19 2025

   Areas affected...Indiana and southern Lower Michigan

   Concerning...Severe Thunderstorm Watch 59...

   Valid 200048Z - 200215Z

   The severe weather threat for Severe Thunderstorm Watch 59
   continues.

   SUMMARY...Local risk for damaging wind gusts continues.

   DISCUSSION...Latest radar loop shows a broken -- and gradually
   weakening -- band of pre-frontal storms moving eastward across
   central and northern Indiana.  While more vigorous cells within this
   band persist farther south -- into portions of Tornado Watch 58
   where slightly greater surface dewpoints (low to mid 50s) exist, the
   prior, limited tornado risk over central and northern Indiana has
   further diminished.  While a brief spin-up is still possible, the
   predominant severe risk will remain locally damaging wind gusts.  In
   the wake of the initial band, a second band of frontal convection
   near the Illinois/Indiana border will reach western fringes of WW 59
   over the next hour or so -- which may bring an additional chance for
   wind gusts in excess of severe levels locally.  Overall though, a
   gradual/nocturnal decrease in storm intensity within both of the
   aforementioned bands will continue over the next few hours.

   ..Goss.. 03/20/2025

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

   ATTN...WFO...ILN...LMK...IWX...GRR...IND...

   LAT...LON   38928648 40288613 41368612 42058597 42198519 41468479
               40198458 39008489 38728518 38928648