Mesoscale Discussion 0258
   NWS Storm Prediction Center Norman OK
   0644 PM CDT Sat Mar 28 2020

   Areas affected...Central/southern IN...Central/southern OH

   Concerning...Severe Thunderstorm Watch 67...

   Valid 282344Z - 290045Z

   The severe weather threat for Severe Thunderstorm Watch 67
   continues.

   SUMMARY...WW 67 will likely be allowed to expire at 00Z. Some severe
   threat may spread back into the region from the west later tonight.

   DISCUSSION...At 2330Z, two primary areas of convection are ongoing
   within WW 67 across portions of OH. The first is a cluster of
   elevated convection from western into central OH, and the second is
   a band of convection along and just north of a weak surface boundary
   from south-central into southeast OH. Some severe hail threat cannot
   be ruled out with the ongoing activity, given MUCAPE of 750-1500
   J/kg and strong midlevel flow and deep-layer shear across the
   region. However, the elevated cluster to the north should continue
   moving eastward into a less unstable environment, while further
   south, increasing SBCINH with time should tend to suppress
   convection along the surface boundary. With these factors in mind,
   WW 67 will likely be allowed to expire at 00Z. 

   Further west, no substantial convection is ongoing across Indiana at
   this time, and watch expiration at 00Z is expected across this
   region as well. More convection is expected to move into the IN/OH
   region from the west later tonight, potentially posing some severe
   threat.

   ..Dean.. 03/28/2020

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

   ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...IND...

   LAT...LON   39498201 39198388 39138492 38808718 39168738 39608734
               40138705 40458518 40578394 40578296 40508236 40108210
               39608190 39498201