Storm Prediction Center Mesoscale Discussion 1080

   Mesoscale Discussion 1080
   NWS Storm Prediction Center Norman OK
   0922 PM CDT Wed Jun 10 2026

   Areas affected...portions of northern Missouri and western Illinois

   Concerning...Tornado Watch 303...305...308...

   Valid 110222Z - 110345Z

   The severe weather threat for Tornado Watch 303, 305, 308 continues.

   SUMMARY...Damaging gusts and a brief tornado remain possible with
   strong to severe storms this evening. Storms are mostly behind the
   outflow, but the environment near the boundary still supports some
   risk.

   DISCUSSION...Across parts of northern MO and western IL, initial
   supercells have coalesced into several clusters along and north of
   an east-west oriented outflow boundary across northern MO and
   northwest IL. The environment south of the boundary remains
   moderately unstable with MLCAPE of 2000-2500 J/kg. This is
   supporting a risk for stronger thunderstorms within the ongoing
   clusters. Deep-layer shear, aided by an observed 50 kt low-level
   jet, is also supportive of bowing or occasional embedded supercell
   features. Given the strong buoyancy and shear, some potential for
   primarily damaging gusts and perhaps a brief tornado remains this
   evening. With time, the increase in nocturnal inhibition and the
   tendency for outflow to undercut these storms should end the severe
   threat.

   ..Lyons.. 06/11/2026

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

   ATTN...WFO...ILX...LSX...DVN...EAX...

   LAT...LON   39829329 39899349 40099352 40289337 40349268 40649096
               40489004 40148998 39749130 39729192 39769297 39829329 

   MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN