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Mesoscale Discussion 1560
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   MESOSCALE DISCUSSION 1560
   NWS STORM PREDICTION CENTER NORMAN OK
   0634 PM CDT FRI AUG 15 2014

   AREAS AFFECTED...N CENTRAL MT

   CONCERNING...SEVERE THUNDERSTORM WATCH 461...

   VALID 152334Z - 160130Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 461
   CONTINUES.

   SUMMARY...ISOLATED RISK FOR HAIL AND/OR LOCALLY DAMAGING WINDS
   CONTINUES...BUT WILL GRADUALLY DIMINISH WITH TIME THROUGH THE
   EVENING HOURS.

   DISCUSSION...LATEST RADAR IMAGERY SHOWS A SEMI-ORGANIZED LINE OF
   STORMS MOVING NEWD ACROSS CENTRAL/N CENTRAL MT...THROUGH A
   RELATIVELY MOIST/UNSTABLE ENVIRONMENT.  WITH THE AXIS OF MAXIMUM
   MIXED-LAYER CAPE LYING DOWNSTREAM OF THE CONVECTIVE BAND...EXPECT
   STORMS TO PERSIST FOR SEVERAL HOURS AS THEY CONTINUE SPREADING NEWD
   TOWARD NERN MT.

   WITH THAT SAID...THE DEEP-LAYER WIND FIELD ACROSS THIS REGION
   REMAINS MARGINAL FOR ORGANIZED UPDRAFTS...AND BECOMES EVEN LESS
   FAVORABLE WITH EWD EXTENT.  GIVEN THIS -- AND THE EVENTUAL/DIURNAL
   STABILIZATION OF THE BOUNDARY LAYER...EXPECT SEVERE RISK TO BEGIN
   GRADUALLY DIMINISHING WITH TIME BEYOND THE NEXT COUPLE OF HOURS. 
   WITH STORMS REMAINING WELL WITHIN WW 461 ATTM AND GIVEN
   AFOREMENTIONED/ANTICIPATED DECREASE IN SEVERE RISK THIS
   EVENING...NEW WW IS NOT EXPECTED ATTM TO THE E OF THE CURRENT WW.

   ..GOSS.. 08/15/2014


   ATTN...WFO...BYZ...GGW...TFX...

   LAT...LON   48361169 48831185 49061081 48780849 46800866 46690985
               47721046 48361169 

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