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Mesoscale Discussion 453
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   Mesoscale Discussion 0453
   NWS Storm Prediction Center Norman OK
   0202 PM CDT Fri Apr 26 2019

   Areas affected...Southern/East-Central WY...Far Northeast
   UT...Northwest CO

   Concerning...Severe potential...Watch unlikely 

   Valid 261902Z - 262130Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Isolated strong wind gusts are possible over the region
   this afternoon.

   DISCUSSION...Thunderstorm coverage and intensity is expected to
   gradually increase across southern WY, northeast UT, northwest CO,
   and far southeast ID over the next few hours as a shortwave trough
   continues to move quickly eastward across the northern Rockies. The
   resultant strengthening in the forcing for ascent related to this
   progressive shortwave trough coupled with a modest growth in
   instability will provide the impetus for higher thunderstorm
   coverage and increase storm intensity. These strengthening and
   fast-moving storms will increase the threat for damaging wind gusts
   as they begin to interact with a steep low-level lapse rate
   environment already in place across the region. Isolated nature of
   these wind gusts is expected to keep watch potential low, but
   convective trends will be monitored closely.

   ..Mosier/Hart.. 04/26/2019

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

   ATTN...WFO...UNR...BOU...CYS...RIW...GJT...SLC...PIH...

   LAT...LON   40810566 40420900 40741161 41631229 42971078 43550605
               43560492 43350447 42720403 41380399 40810566 

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Page last modified: April 26, 2019
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