US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 651



   Mesoscale Discussion 0651
   NWS Storm Prediction Center Norman OK
   0158 PM CDT Mon May 06 2024

   Areas affected...Central KS and south-central NE

   Concerning...Tornado Watch 187...

   Valid 061858Z - 062030Z

   The severe weather threat for Tornado Watch 187 continues.

   SUMMARY...Overall severe threat, primarily in the form of large hail
   through late afternoon within WW 187, should be confined to central
   Kansas into south-central Nebraska. The tornado threat should
   increase, mainly across the Kansas portion of the watch.

   DISCUSSION...A convective arc across south-central NE to
   west-central KS has produced a few reports of large hail reported up
   to 1.25 inches in diameter. Pervasive stratus downstream has slowed
   destabilization farther east and north, especially within the NE
   portion of the watch. Current expectations are that the severe
   threat will largely remain confined to the southern portion of the
   watch over the next few hours where a plume of 1000-2000 J/kg of
   MLCAPE is common. 18Z DDC sounding sampled some reduction in
   low-level hodograph curvature, as indicated by its VWP time-series.
   Still, along the northern extent of the instability plume in
   north-central KS, more backed low-level flow will foster a threat of
   tornadoes, focused along the I-70 corridor.

   ..Grams.. 05/06/2024

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

   ATTN...WFO...TOP...ICT...GID...LBF...DDC...GLD...

   LAT...LON   40519951 41109927 41199861 40979819 40209787 39269793
               38499827 38109887 38100002 38410018 39509958 40029948
               40519951 



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