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Mesoscale Discussion 1125
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   MESOSCALE DISCUSSION 1125
   NWS STORM PREDICTION CENTER NORMAN OK
   0938 PM CDT SUN JUN 22 2014

   AREAS AFFECTED...PORTIONS NERN CO...SERN WY...NEB PANHANDLE

   CONCERNING...SEVERE THUNDERSTORM WATCH 348...

   VALID 230238Z - 230415Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 348
   CONTINUES.

   SUMMARY...AN ISOLATED SEVERE THREAT WILL CONTINUE THROUGH 0600 UTC
   FOR PARTS OF WW 348.

   DISCUSSION...STRONG TO OCCASIONALLY SEVERE CONVECTION CONTINUES TO
   SPREAD EAST-SOUTHEAST ACROSS WW 348 AND HAS ORGANIZED ALONG THE
   LEADING EDGE OF TWO COLD POOLS...ONE FROM NEAR AKO TO NEAR MNH AND
   THE OTHER FROM NEAR TOR TO CYS. THIS CONVECTION AND ATTENDANT COLD
   POOL WILL CONTINUE TO PROPAGATE ESEWD IN A PRE-STORM ENVIRONMENT
   CHARACTERIZED BY 500-1500 J PER KG OF MLCAPE...DEEP LAYER SHEAR AOA
   40 KNOTS...AND A CONTINUED EASTERLY/UPSLOPE COMPONENT TO LOW-LEVEL
   FLOW THAT WILL MAINTAIN CONVERGENCE ALONG LEADING EDGE OF BOTH COLD
   POOLS. NEAR 1400 J/KG MLCAPE INDICATED IN 0000 UTC UPPER AIR
   SOUNDING AT LBF WAS ALSO NOTED. THESE FACTORS SUGGEST SOME LOCALIZED
   THREAT FOR DAMAGING WIND GUSTS AND MARGINALLY SEVERE
   HAIL...PRIMARILY ACROSS WRN/SWRN NEBRASKA AND FAR NE COLORADO.

   STABILIZATION HAS OCCURRED ACROSS THE WRN AND NWRN PARTS OF WW
   348/MUCH OF SERN WYOMING AND PARTS OF NERN COLORADO/ DUE TO
   CONVECTIVE OVERTURNING...EFFECTIVELY ENDING THE SEVERE THREAT ACROSS
   THAT PORTION OF THE WATCH.

   ..COOK/DEAN/EDWARDS.. 06/23/2014


   ATTN...WFO...LBF...UNR...GLD...BOU...CYS...RIW...

   LAT...LON   39710378 39790428 39920467 40350492 41020527 41410538
               41850565 42080571 42490589 42980604 43300617 43500610
               43530524 43410399 43310369 42980332 42920313 42660277
               42080272 41680268 40960246 40730242 40370226 40200215
               39930213 39680236 39630282 39710378 

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Page last modified: June 23, 2014
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