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Mesoscale Discussion 894
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   MESOSCALE DISCUSSION 0894
   NWS STORM PREDICTION CENTER NORMAN OK
   1129 PM CDT THU JUN 04 2015

   AREAS AFFECTED...NWRN AND N-CNTRL KS / S-CNTRL AND SWRN NEB

   CONCERNING...TORNADO WATCH 256...

   VALID 050429Z - 050530Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 256 CONTINUES.

   SUMMARY...THE THREAT FOR SEVERE-SIZED HAIL WILL BECOME INCREASINGLY
   LOCALIZED AND THE TORNADO RISK APPEARS TO HAVE DIMINISHED
   CONSIDERABLY OVER THE PAST 30-60 MINUTES.

   DISCUSSION...SURFACE ANALYSIS SHOWS A SLOWLY COOLING BOUNDARY LAYER
   AS INDICATED BY TEMPS FALLING INTO THE UPPER 70S NEAR I-70 IN CNTRL
   KS TO THE UPPER 60S OVER NWRN KS AND S-CNTRL NEB.  THE DIURNAL
   COOLING TREND COUPLED WITH EXPANDING COLD POOLS/OUTFLOW ARE
   PROMOTING THE TRANSITION TO AN ELEVATED TSTM MORPHOLOGY WITH THE
   PRIMARY RISK BEING LARGE HAIL.  THE SEVERE-HAIL RISK WILL PROBABLY
   BECOME MORE LOCALIZED WITH TIME AS ADDITIONAL STORMS DEVELOP THEREBY
   AIDING IN NEAR-SURFACE STABILIZATION.  THE TORNADO POTENTIAL HAS
   DIMINISHED CONSIDERABLY ACROSS N-CNTRL KS AND...IN ABSENCE OF ANY
   FURTHER SUPERCELL DEVELOPMENT...THE TORNADO THREAT WILL HAVE BECOME
   EXHAUSTED IF THIS ADDITIONAL FACTOR IS NOT REALIZED.

   ..SMITH.. 06/05/2015


   ATTN...WFO...ICT...GID...LBF...DDC...GLD...

   LAT...LON   38840051 40230105 40650016 40689887 39319849 38709901
               38840051 

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Page last modified: June 05, 2015
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