Storm Prediction Center Mesoscale Discussion 1365

   Mesoscale Discussion 1365
   NWS Storm Prediction Center Norman OK
   0531 PM CDT Fri Jun 21 2024

   Areas affected...Southeastern Utah and far western Colorado

   Concerning...Severe Thunderstorm Watch 441...

   Valid 212231Z - 220000Z

   The severe weather threat for Severe Thunderstorm Watch 441
   continues.

   SUMMARY...Large to very-large hail and isolated strong/severe winds
   are most likely in parts of southeast Utah and adjacent western
   Colorado.

   DISCUSSION...Though the mid-level trough is continuing to lose
   amplitude with time, strong mid-level winds should continue to
   persist in the eastern Great Basin. At present, the most undisturbed
   airmass is roughly within southeastern Utah into adjacent far
   western Colorado. A supercell in San Juan County remains the
   strongest storm in the area and will be most capable of producing 2+
   inch hail in the short term. Other storms in the Emery/Grand
   Counties vicinity may intensify and pose a threat for large hail as
   well. As storms move farther into the western slope, buoyancy will
   be decreased and storm intensity should wane. Elsewhere in WW 441,
   cloud cover/outflow has had some impact and storms have not been as
   intense in the last hour. However, isolated large hail and
   strong/severe winds could occur if any of that peripheral activity
   intensifies.

   ..Wendt.. 06/21/2024

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

   ATTN...WFO...GJT...SLC...

   LAT...LON   37051005 38551101 38961081 39270981 39240893 39070864
               37900822 37530832 37280846 37140896 37070953 37051005