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Mesoscale Discussion 858
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   MESOSCALE DISCUSSION 0858
   NWS STORM PREDICTION CENTER NORMAN OK
   0439 PM CDT MON JUN 01 2015

   AREAS AFFECTED...EASTERN IDAHO

   CONCERNING...SEVERE THUNDERSTORM WATCH 245...

   VALID 012139Z - 012245Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 245
   CONTINUES.

   SUMMARY...SEVERE THREAT CONTINUES ACROSS WW 245...

   DISCUSSION...CONTINUE WW 245. SCATTERED THUNDERSTORMS HAVE DEVELOPED
   ACROSS CENTRAL...SOUTHWESTERN...AND NORTHWESTERN PARTS OF WW 245.
   WARM SURFACE TEMPERATURES NEAR 80F...DEWPOINTS NEAR 50F...AND STEEP
   LOW/MID-LEVEL LAPSE RATES ARE CONTRIBUTING TO 500-1250 J/KG
   MLCAPE...SUPPORTIVE OF DAMAGING WINDS AND A FEW INSTANCES OF LARGE
   HAIL. IN THE NEAR TERM...STORMS DEVELOPING IN NORTHEASTERN NEVADA
   AND NORTHWESTERN UTAH ADJACENT TO WW 245 MAY ALSO POSE A WIND/HAIL
   THREAT AS THEY MOVE NORTHEASTWARD INTO THE WATCH AREA. LATEST
   HIGH-RESOLUTION GUIDANCE SUGGESTS THAT STORMS IN THE SOUTHWESTERN
   PARTS OF THE WATCH AREA WILL EVENTUALLY CONGEAL INTO AN EWD-MOVING
   LINEAR COMPLEX...WHICH SHOULD MAINTAIN THE SEVERE THREAT ACROSS THE
   REGION THROUGH AT LEAST 01Z.

   ..COOK.. 06/01/2015


   ATTN...WFO...RIW...TFX...SLC...PIH...BOI...LKN...

   LAT...LON   42081427 42791415 43421389 43981329 44491225 44631141
               44411088 43791080 43021092 42401117 42081162 41801260
               41681330 41811399 42081427 

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Page last modified: June 01, 2015
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