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Mesoscale Discussion 423
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   MESOSCALE DISCUSSION 0423
   NWS STORM PREDICTION CENTER NORMAN OK
   0319 PM CDT SUN APR 27 2014

   AREAS AFFECTED...CNTRL AND NRN NEB

   CONCERNING...TORNADO WATCH 96...

   VALID 272019Z - 272145Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 96 CONTINUES.

   SUMMARY...LOW-TOPPED SUPERCELLS WILL CONTINUE FOR THE NEXT FEW HOURS
   ACROSS CNTRL/NRN NEB AND FAR NRN KS. LARGE HAIL AND ISOLATED
   TORNADOES WILL CONTINUE TO BE THE MAIN THREAT.

   DISCUSSION...SEVERAL LOW-TOPPED SUPERCELLS HAVE BEEN ONGOING ACROSS
   CNTRL/NRN NEB AND FAR NRN KS...WITH AT LEAST ONE POSSIBLE TORNADO
   REPORTED AROUND 1930Z NEAR UPLAND NEBRASKA. OBJECTIVE MESOANALYSIS
   INDICATES SBCAPE OF 500-1000 J/KG ALONG THE LEADING EDGE OF THE DRY
   SLOT...WITH MODERATE EFFECTIVE SHEAR OF 30-40 KTS NORMAL TO THE
   BOUNDARY CONTINUING TO SUPPORT DISCRETE SUPERCELLS. LARGE HAIL WILL
   CONTINUE TO BE THE MAIN THREAT. WHILE WIND PROFILES ARE NOT
   PARTICULARLY FAVORABLE FOR TORNADOES...STEEP LOW-LEVEL LAPSE RATES
   IN A VORTICITY-RICH ENVIRONMENT CLOSE TO THE SURFACE LOW WILL
   SUPPORT ISOLATED TORNADOES.

   ..DEAN.. 04/27/2014


   ATTN...WFO...GID...LBF...

   LAT...LON   40059851 40229891 40539937 40899973 41139998 41330016
               41510060 41580087 41440128 41430142 41400157 41400171
               41570186 41730194 41880198 42240199 42560180 42730141
               42750129 42770070 42449977 42179922 41839882 41489848
               41329817 41199803 41049784 40839770 40429743 40159766
               40079807 40059851 

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Page last modified: April 27, 2014
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