Mesoscale Discussion 0811
   NWS Storm Prediction Center Norman OK
   1145 AM CDT Thu Jun 04 2020

   Areas affected...Central/Eastern OH...Western PA...Northern WV
   Panhandle

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

   Valid 041645Z - 041815Z

   Probability of Watch Issuance...95 percent

   SUMMARY...Increasing severe thunderstorm threat is forecast across
   central/eastern OH, northern WV Panhandle, and western PA.

   DISCUSSION...Thunderstorm coverage across central OH has recently
   increased, supported by air mass destabilization and ascent from the
   approaches convectively enhanced vorticity maximum. Downstream air
   mass across central and eastern OH and western PA is expected to
   continue destabilizing under strong diurnal heating. Additionally,
   the westerly flow aloft increases with eastern extent into PA,
   suggesting the potential for a stronger, more organized convective
   line into PA. More cellular activity could produce some isolated
   large hail but the primary severe weather threat is expected to be
   damaging wind gusts. Given the current radar trends and favorable
   downstream air mass, a watch will likely be needed soon.

   ..Mosier/Grams.. 06/04/2020

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

   ATTN...WFO...CTP...PBZ...RLX...CLE...ILN...

   LAT...LON   40088359 40928272 41248089 41217927 40757892 39757917
               39228091 39158145 39158353 40088359