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Storm Prediction Center Mesoscale Discussion 1049

Published Date and Time: 2026-06-09 16:34:00



Mesoscale Discussion 1049
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MD 1049 graphic

   Mesoscale Discussion 1049
   NWS Storm Prediction Center Norman OK
   0331 PM CDT Tue Jun 09 2026

   Areas affected...portions of far northeast Colorado into western
   Nebraska

   Concerning...Severe potential...Watch possible 

   Valid 092031Z - 092200Z

   Probability of Watch Issuance...60 percent

   SUMMARY...The threat for severe wind and hail should gradually
   increase as developing storms move off of the higher terrain and
   ingest greater moisture/buoyancy. A Severe Thunderstorm Watch may
   eventually be issued.

   DISCUSSION...NLDN lightning data and visible satellite depict an
   ongoing thunderstorm across far northeast CO, with hints at CU tops
   breaching a cirrus cloud deck. A mid-level longwave trough is
   beginning to overspread the High Plains as surface temperatures
   reach the 85-90 F range, indicating adequate lift to support at
   least scattered thunderstorm development. Dewpoints are approaching
   the mid to upper 60s F in western NE, with MLCAPE ranging from
   1000-3000 J/kg, progressing from far northeast CO into western NE.
   The well-mixed boundary layer in place may support severe storms
   given 30-40 kts of effective bulk shear and 8.5+ C/km mid-level
   lapse rates aloft. Any storms that develop will accompanied by a
   threat for severe wind and hail. Since the storms will likely
   develop west of the moisture axis, it is unclear when storms will
   experience an appreciable uptick in intensity. Nonetheless, a Severe
   Thunderstorm Watch issuance may eventually be needed.

   ..Squitieri/Mosier.. 06/09/2026

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

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

   LAT...LON   40010245 40400301 40910332 41680338 42190312 42490246
               42570184 42470123 42100083 41620054 41080043 40550054
               40280080 40030130 40010245 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


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