Storm Prediction Center Mesoscale Discussion 1452

   Mesoscale Discussion 1452
   NWS Storm Prediction Center Norman OK
   0603 PM CDT Thu Jun 27 2024

   Areas affected...portions of southwestern North Dakota

   Concerning...Tornado Watch 476...

   Valid 272303Z - 280030Z

   The severe weather threat for Tornado Watch 476 continues.

   SUMMARY...The severe threat continues across Tornado Watch 476. A
   few tornadoes remain possible with discrete supercells, but the
   severe wind threat should increase as an MCS overtakes the
   supercells in the next few hours.

   DISCUSSION...Two discrete supercells continue across southwestern ND
   as a well-developed MCS (with a history of severe gusts) approaches
   from southeastern MT. 22Z mesoanalysis shows modestly
   curved/elongated hodographs preceding the supercells, along with
   200-300 m2/s2 effective SRH, supporting tornado potential. With
   time, the fast approaching MCS from the west will merge with the
   supercells. This may augment the severe wind threat, with 75-90 mph
   gusts possible. QLCS tornadoes will still be a concern as well.

   ..Squitieri.. 06/27/2024

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

   ATTN...WFO...BIS...

   LAT...LON   46530361 46820384 47190384 47490370 47420305 46890267
               46530303 46530361