Storm Prediction Center Mesoscale Discussion 1129

   Mesoscale Discussion 1129
   NWS Storm Prediction Center Norman OK
   0558 PM CDT Sat Jun 13 2026

   Areas affected...Northeastern Kansas

   Concerning...Tornado Watch 327...

   Valid 132258Z - 140030Z

   The severe weather threat for Tornado Watch 327 continues.

   SUMMARY...The threat for tornado watch 327 continues into the
   evening as thunderstorms advance southeastward from the KS/NE
   border. Supercells capable of tornadoes, damaging winds of 65-80
   MPH, and 2-3.5 inch hail will all be possible.

   DISCUSSION...A cluster of supercell thunderstorms has developed
   along a cold front in the vicinity of the KS/NE border and is
   currently moving southeastward into WW 327. With deep-layer shear
   exceeding 45 kts and copious buoyancy ahead of these storms, the
   expectation is that both discrete and line-embedded supercells will
   pose a threat for all hazards over the next few hours. Additional
   modifications to the hodograph from the onset of the nocturnal
   low-level jet will will support an increase in tornado threat near
   and after sunset, particularly with any preexisting
   dominant/isolated supercell thunderstorms. The mixed
   supercellular/linear mode will also support large hail up to 3.5
   inches and damaging straight-line winds up to 80 MPH.

   ..Halbert.. 06/13/2026

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

   ATTN...WFO...EAX...OAX...TOP...ICT...GID...DDC...

   LAT...LON   38759854 38949855 39629783 39879725 40099632 40189536
               40049468 39919462 39739431 39399418 38899405 38439438
               38289535 38189597 38169659 38159710 38169780 38199826
               38239847 38759854 

   MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN