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Mesoscale Discussion 629
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   MESOSCALE DISCUSSION 0629
   NWS STORM PREDICTION CENTER NORMAN OK
   0906 PM CDT TUE MAY 20 2014

   AREAS AFFECTED...WRN NE...INCLUDING THE PNHDL / NERN CO / NWRN KS

   CONCERNING...SEVERE THUNDERSTORM WATCH 160...162...

   VALID 210206Z - 210330Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   160...162...CONTINUES.

   SUMMARY...THE THREAT FOR LOCALLY DAMAGING WIND GUSTS AND SEVERE HAIL
   CONTINUES OVER ERN PORTIONS OF WW 160 INTO THE WRN PARTS OF WW 162.
   FARTHER W...SEVERE POTENTIAL APPEARS TO BE DIMINISHING OVER WRN
   PARTS OF REMAINING WW 160.

   DISCUSSION...AS OF 0145Z...REGIONAL RADAR DATA INDICATED TWO
   SEPARATE CLUSTERS OF STRONG-SEVERE TSTMS...ONE OVER MORRILL COUNTY
   NEBRASKA MOVING 290/15 KT...AND THE OTHER OVER WASHINGTON...NRN
   LINCOLN...AND NWRN KIT CARSON COUNTIES COLORADO MOVING 285/20 KT. 
   THE LATTER STORM COMPLEX IS SITUATED ON THE COOL SIDE OF A
   SFC-850-MB BAROCLINIC ZONE AND AT THE NOSE OF A LOW-LEVEL MOISTURE
   AXIS WHERE SFC DEWPOINTS REMAIN IN THE MID 50S. AND EVEN IN THE
   PRESENCE OF INCREASING CONVECTIVE INHIBITION...THE INTERACTION
   BETWEEN THE EXISTING COLD POOL WITH A NOCTURNALLY STRENGTHENING LLJ
   MAY SUSTAIN THESE TSTMS EWD INTO NWRN KANSAS BY ABOUT 04Z. LOCALLY
   DAMAGING WIND GUSTS AND SEVERE HAIL WILL BE THE PRIMARY HAZARDS WITH
   THESE STORMS.

   WITH REGARD TO THE NEBRASKA STORMS...LATEST RADAR TRENDS SUGGEST A
   GRADUAL WEAKENING...LIKELY DUE TO THE INCREASING CONVECTIVE
   INHIBITION. SHOULD THIS TREND CONTINUE...NRN PORTIONS OF WW 162 MAY
   BE ABLE TO BE CLEARED EARLY.

   ..MEAD.. 05/21/2014


   ATTN...WFO...GID...LBF...UNR...GLD...PUB...BOU...CYS...

   LAT...LON   38980405 39970369 41110406 42990402 43000279 41990267
               42090138 41790140 41780073 41410069 41420018 38730015
               38630313 38500318 38510405 38980405 

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Page last modified: May 21, 2014
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