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Mesoscale Discussion 690
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   MESOSCALE DISCUSSION 0690
   NWS STORM PREDICTION CENTER NORMAN OK
   0240 AM CDT SUN MAY 25 2014

   AREAS AFFECTED...THE TEXAS SOUTH PLAINS INTO PARTS OF NORTHWEST
   TEXAS

   CONCERNING...SEVERE THUNDERSTORM WATCH 183...

   VALID 250740Z - 250915Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 183
   CONTINUES.

   SUMMARY...ANY LINGERING SEVERE THREAT ACROSS THE REMAINING VALID
   PORTION OF WATCH 183...EASTWARD INTO PARTS OF NORTHWEST
   TEXAS...APPEARS TO BE DIMINISHING.  AN ADDITIONAL WATCH IS NOT
   ANTICIPATED.

   DISCUSSION...ONGOING CONVECTIVE SYSTEM...WHICH APPEARS TO GENERALLY
   COINCIDE WITH THE LEADING EDGE OF STRONGER MID-LEVEL COOLING
   SPREADING NORTHEASTWARD AND EASTWARD ACROSS THE SOUTHERN
   PLAINS...HAS SHOWN DEFINITIVE WEAKENING TRENDS DURING THE PAST
   COUPLE OF HOURS.  STRONGEST CURRENT CONVECTION...ON THE SOUTHERN
   FLANK OF THE SYSTEM...SOUTH-SOUTHWEST OF LUBBOCK...APPEARS TO BE
   AIDED BY INFLOW OF RESIDUALLY UNSTABLE BOUNDARY LAYER AIR. 
   HOWEVER...AS THIS ACTIVITY TENDS TO DEVELOP NORTHEASTWARD TOWARD
   AREAS NEAR/SOUTH OF CHILDRESS THROUGH DAYBREAK...INFLOW OF AIR
   CONSIDERABLY IMPACTED BY PRIOR CONVECTION...AND ONGOING CONVECTION
   TO THE SOUTH...DOES NOT SEEM LIKELY TO OFFER SUPPORT FOR SUBSTANTIVE
   INTENSIFICATION.

   ..KERR.. 05/25/2014


   ATTN...WFO...OUN...LUB...MAF...

   LAT...LON   33290224 34230159 34560006 33560000 32420181 32200309
               33290224 

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Page last modified: May 25, 2014
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