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Mesoscale Discussion 516
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   MESOSCALE DISCUSSION 0516
   NWS STORM PREDICTION CENTER NORMAN OK
   0734 PM CDT WED MAY 07 2014

   AREAS AFFECTED...NERN CO / NWRN KS / SWRN NEB / SERN WY

   CONCERNING...SEVERE THUNDERSTORM WATCH 122...

   VALID 080034Z - 080130Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 122
   CONTINUES.

   SUMMARY...THE THREAT FOR MAINLY LARGE HAIL AND LOCALLY DAMAGING WIND
   GUSTS WILL CONTINUE THROUGH 02Z ACROSS MAINLY THE NEBRASKA PORTION
   OF THE WATCH.

   DISCUSSION...AGGREGATING STORM-SCALE OUTFLOWS HAVE LED TO UPSCALE
   GROWTH OF STORMS INTO CLUSTERS WITH THE MOST INTENSE STORMS LOCATED
   OVER LINCOLN COUNTY NEB AS OF 0015Z. DCVA ATTENDANT TO A SHORT-WAVE
   TROUGH LIFTING NEWD INTO THE CNTRL HIGH PLAINS COUPLED WITH
   STRENGTHENING WAA IN ASSOCIATION WITH A NOCTURNALLY STRENGTHENING
   LLJ SHOULD SUSTAIN ONGOING STORMS...NAMELY ACROSS PORTIONS OF WRN
   NEB THROUGH 02Z.

   00Z REGIONAL SOUNDINGS SHOW THE PRESENCE OF STEEP MIDLEVEL LAPSE
   RATES AND A MODESTLY MOIST BOUNDARY LAYER WHICH WERE CONTRIBUTING TO
   MUCAPE OF 1000-2000 J/KG. THIS INSTABILITY IN CONJUNCTION WITH AMPLE
   CLOUD-BEARING SHEAR WILL CONTINUE TO MAINTAIN EMBEDDED SUPERCELL
   STRUCTURES WITH A RISK FOR LARGE HAIL AND LOCALLY DAMAGING WINDS.

   FARTHER TO THE W/SW ACROSS THE WY/CO/KS PORTION OF THE
   WATCH...EXPECT THE SEVERE THREAT TO CONTINUE TO WANE THROUGH 02Z.

   ..MEAD.. 05/08/2014


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

   LAT...LON   39830158 39970338 40100475 40700559 41240543 41710354
               41880222 41920137 41880091 41540039 40820038 40130061
               39830158 

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Page last modified: May 08, 2014
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