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Mesoscale Discussion 1032
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   Mesoscale Discussion 1032
   NWS Storm Prediction Center Norman OK
   1252 AM CDT Sun Jun 28 2020

   Areas affected...Portions of northern KS and southern NE

   Concerning...Severe Thunderstorm Watch 311...

   Valid 280552Z - 280715Z

   The severe weather threat for Severe Thunderstorm Watch 311
   continues.

   SUMMARY...An isolated large hail and strong to severe wind threat
   continues across north-central Kansas and southern Nebraska. The
   need for a downstream watch into northeastern Kansas and
   southeastern Nebraska remains unclear.

   DISCUSSION...A small bowing line segment across north-central KS and
   south-central NE has generally produced 50-55 mph measured wind
   gusts over the past hour. Additional, somewhat more discrete storms
   have formed in a low-level warm advection wing farther east across
   southern NE. The line of storms moving eastward will continue to
   pose mainly an isolated strong to severe wind gust threat for the
   next couple of hours across northern KS, as instability remains
   fairly large downstream of this activity. The semi-discrete storms
   across southern NE should primarily have an isolated large hail
   threat initially given steep mid-level lapse rates supporting a
   large reservoir of MUCAPE in the 2000-3000 J/kg range. But,
   clustering may eventually reduce this hail threat to some extent.
   Regardless, a 30-40 kt south-southwesterly low-level jet feeding
   into both storm regimes may support continued storm intensity for at
   least the next few hours. The need for a new watch downstream of
   Severe Thunderstorm Watch 311 remains unclear, but convective trends
   will continue to be closely monitored.

   ..Gleason/Grams.. 06/28/2020

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

   ATTN...WFO...OAX...TOP...ICT...GID...DDC...

   LAT...LON   39089942 39149946 39719922 40229936 40449992 40759990
               41019802 40969615 40159582 39489580 39059712 39089942 

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Page last modified: June 28, 2020
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