Storm Prediction Center Mesoscale Discussion 1040

   Mesoscale Discussion 1040
   NWS Storm Prediction Center Norman OK
   1039 PM CDT Mon Jun 08 2026

   Areas affected...northwestern Kansas into western Nebraska

   Concerning...Severe Thunderstorm Watch 291...

   Valid 090339Z - 090545Z

   The severe weather threat for Severe Thunderstorm Watch 291
   continues.

   SUMMARY...Damaging wind and hail risk continues within WW290.

   DISCUSSION...Multiple multi-cell clusters continue across WW290.
   Reports of gusts 60-70 mph were reported with the cluster in western
   Nebraska. Outflow has steadily come out of the southern end of this
   cluster with continued development along the outflow to the north.
   This will continue to pose a risk for damaging wind downstream over
   the next 1-2 hours.

   One supercell persists near Goodland, KS with a history of producing
   hail up to 1.75 inches in diameter. Mesh cores with this storm
   continue to suggest potential for large hail 1-2 inches.

   With time, it is expected that thunderstorm activity will weaken
   with eastward extent, owing to nocturnal cooling and increasing
   MLCIN.

   ..Thornton.. 06/09/2026

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

   ATTN...WFO...LBF...GLD...BOU...CYS...

   LAT...LON   39530205 40590202 41500258 41860272 42540253 42350198
               41560122 40910055 40470057 39690070 39340092 39190119
               39160167 39120194 39530205 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN