Storm Prediction Center Mesoscale Discussion 1923

   Mesoscale Discussion 1923
   NWS Storm Prediction Center Norman OK
   1018 AM CDT Tue Aug 11 2026

   Areas affected...central Ohio...far southeast Indiana...northeast
   Kentucky...western West Virginia...and western Virginia

   Concerning...Severe Thunderstorm Watch 564...

   Valid 111518Z - 111715Z

   The severe weather threat for Severe Thunderstorm Watch 564
   continues.

   SUMMARY...The threat for damaging winds is expected to continue
   across the watch area this morning. Additional storm development is
   possible along a composite outflow boundary from northeast Kentucky
   into western Virginia by early afternoon, possibly requiring an
   additional watch issuance.

   DISCUSSION...A mature MCS with embedded bowing structure is ongoing
   as of 1510Z across portions of central and southern OH with a wind
   gust to 82 mph reported within the past hour at the Columbus John
   Glenn International Airport. While that portion of the MCS is
   currently the most intense, considerable downstream convection
   present from southeast OH into northwest WV leads to uncertainty in
   the longevity of the damaging wind threat given the convectively
   overturned air mass.

   Potentially greater air mass destabilization is expected by early
   afternoon farther southwest from northeast KY into western portions
   of WV and VA, in the vicinity of a composite outflow boundary.
   There, storm intensification on the western flank of the OH MCS
   appears possible, along with additional in situ development along
   the boundary. While the region will reside on the southern fringe of
   stronger vertical shear, the presence of moderate to strong
   instability with steepening low-level lapse rates will support
   damaging wind potential with the strongest storms.

   ..Mead/Hart.. 08/11/2026

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

   ATTN...WFO...RNK...RLX...MRX...JKL...ILN...LMK...

   LAT...LON   38698497 39198499 39948458 40068341 40098255 39308200
               38798179 37788134 37018076 36858140 37048246 37458328
               38698497 

   MOST PROBABLE PEAK WIND GUST...55-70 MPH