Mesoscale Discussion 1926 NWS Storm Prediction Center Norman OK 1257 PM CDT Tue Aug 11 2026 Areas affected...central into southeast Indiana...southwest Ohio...and potentially into far northern Kentucky Concerning...Severe Thunderstorm Watch 565...567... An additional downstream watch or watch extension may become necessary. DISCUSSION...Recent KIND base velocity data suggest a strengthening cold pool with ongoing storms over Boone, Hamilton, and Madison Counties, to the north of the Indianapolis metropolitan area. While low-level lapse rates remain somewhat marginal, continued daytime heating ahead of the ongoing storms should support a steepening trend through the afternoon. ..Mead.. 08/11/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ILN...IWX...IND... LAT...LON 40228671 40618652 40668601 39938429 39268377 38748414 38658475 39818630 40228671 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN