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Mesoscale Discussion 1677
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   MESOSCALE DISCUSSION 1677
   NWS STORM PREDICTION CENTER NORMAN OK
   0943 PM CDT THU AUG 13 2015

   AREAS AFFECTED...SWRN NEB

   CONCERNING...SEVERE THUNDERSTORM WATCH 487...

   VALID 140243Z - 140345Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 487
   CONTINUES.

   SUMMARY...STORMS WILL POSE A THREAT FOR DAMAGING WIND AND LARGE HAIL
   AS THEY CONTINUE SSEWD THROUGH SWRN/SCNTRL NEB THROUGH 03-04Z.
   HOWEVER...AN OVERALL WEAKENING TREND IS ANTICIPATED...AND THE MORE
   SUBSTANTIAL SEVERE THREAT IS NOT EXPECTED TO EXTEND BEYOND THE
   NEB/KS BORDER.

   DISCUSSION...ORGANIZED STORMS PERSIST OVER SWRN NEB WITH A BOWING
   SEGMENT AND COMMA HEAD INDICATED MOVING INTO FRONTIER COUNTY. THIS
   STORM LIKELY CONTAINS STRONG TO DAMAGING WIND GUSTS. RECENT SFC
   ANALYSIS SHOWS TEMPERATURES FALLING INTO THE 70S F...AND AS STORMS
   CONTINUE SWD THEY WILL ENCOUNTER WARMER AIR ALOFT WITH 13+ C
   TEMPERATURES AT 700 MB. THOUGH STRONG FORCING ALONG THE SURGING
   OUTFLOW BOUNDARY MAY SUSTAIN STORMS ANOTHER HOUR OR SO...THE
   INCREASING CONVECTIVE INHIBITION SHOULD ULTIMATELY RESULT IN AN
   OVERALL WEAKENING TREND.

   ..DIAL.. 08/14/2015


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

   LAT...LON   40550038 40799962 40479918 40179927 40229996 40550038 

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Page last modified: August 14, 2015
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