Storm Prediction Center Mesoscale Discussion 367

   Mesoscale Discussion 0367
   NWS Storm Prediction Center Norman OK
   0820 PM CDT Wed Apr 02 2025

   Areas affected...Parts of central Indiana

   Concerning...Tornado Watch 99...

   Valid 030120Z - 030245Z

   The severe weather threat for Tornado Watch 99 continues.

   SUMMARY...The tornado and damaging-wind risk is spreading
   east-northeastward across central Indiana in Tornado Watch 99.

   DISCUSSION...The latest radar data from IND/VWX shows an intense
   bowing line segment with an embedded supercell structure tracking
   east-northeastward at around 60 kt across central IN. With
   moist/unstable inflow for this system (middle 60s dewpoints) and
   60-70 kt of line-orthogonal 0-6 km shear (pew IND VWP), this intense
   convection will continue to pose a risk of severe wind gusts
   (upwards of 80 mph) and embedded tornadoes. Isolated cells
   developing ahead of the main line will also pose a risk of
   tornadoes, large hail, and damaging winds. 

   Farther south, semi-discrete supercell clusters are also tracking
   east-northeastward within a very favorable environment (350-400
   m2/s2 effective SRH and around 1500 J/kg MLCAPE). This activity will
   continue to pose a risk of tornadoes, large hail, and damaging winds
   as it continues east-northeastward.

   ..Weinman.. 04/03/2025

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

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

   LAT...LON   38618735 38928730 39678676 40188638 40498600 40468544
               40268526 39928518 39678533 39098588 38658671 38618735 

   MOST PROBABLE PEAK TORNADO INTENSITY...120-150 MPH
   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN