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Mesoscale Discussion 694
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   Mesoscale Discussion 0694
   NWS Storm Prediction Center Norman OK
   0753 PM CDT Sat May 23 2020

   Areas affected...Central nebraska and South Dakota

   Concerning...Severe potential...Watch likely 

   Valid 240053Z - 240230Z

   Probability of Watch Issuance...95 percent

   SUMMARY...Thunderstorms organizing across Nebraska and south Dakota
   should persist east out of WW208 over the next 1 to 2 hours. The
   threat for damaging winds remains, and a downstream watch is likely
   needed.

   DISCUSSION...An MCS is organizing across portions of Nebraska and
   South Dakota ahead of a mid-level shortwave trough. An uptick in
   convective intensity and coverage has been noted over the last hour.
   This is likely due to increased low-level mass response from the
   low-level jet advecting in deeper moisture ahead of the storms.
   Increased moisture with surface dewpoints in the upper 50s to low
   60s will support robust updrafts. The predominately linear mode will
   favor a threat for damaging wind gusts this evening, though severe
   hail will also be possible with the initial convection. A new watch
   is likely downstream of WW208 within the hour.

   ..Lyons.. 05/24/2020

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

   ATTN...WFO...FSD...ABR...GID...BIS...LBF...UNR...

   LAT...LON   43680123 44000118 44570119 44810124 45010159 45140169
               45420188 45660201 45830194 45940169 45940058 45969990
               45929957 45819935 45529908 45219890 44849869 44299848
               44119849 43409838 42869848 42209867 42019871 41759872
               41399886 40929932 40659952 40519987 40460009 40410034
               40410060 40450106 40610121 40970129 41360137 41760134
               42590124 43680123 

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