MESOSCALE DISCUSSION 1301
   NWS STORM PREDICTION CENTER NORMAN OK
   0403 PM CDT WED JUN 27 2007
   
   AREAS AFFECTED...EASTERN CO/SOUTHEAST WY
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 272103Z - 272300Z
   
   POTENTIAL FOR ISOLATED LARGE HAIL/LOCALLY HEAVY RAINFALL AND PERHAPS
   STRONG WIND GUSTS WILL INCREASE OVER THE NEXT SEVERAL HOURS ACROSS
   THE I-25 CORRIDOR OF EASTERN CO/SOUTHEAST WY. ALTHOUGH QUESTIONS
   REMAIN REGARDING CONVECTIVE VIGOR AND THE EXTENT OF A SEVERE
   THREAT...WILL NEVERTHELESS MONITOR FOR A POSSIBLE WATCH.
   
   VISIBLE SATELLITE/VOLUMETRIC RADAR IMAGERY DEPICTS STORMS CONTINUING
   TO INCREASE OVER THE HIGHER TERRAIN/FOOTHILLS OF EASTERN CO AND
   SOUTHEAST WY AT MID AFTERNOON. WITH THE NORTHERN EXTENT PERHAPS
   AIDED BY A WEAK MID LEVEL IMPULSE ACROSS WY...MODEST WESTERLY FLOW
   ALOFT ATOP A LOW LEVEL EASTERLY UPSLOPE REGIME SHOULD ALLOW STORMS
   TO SLOWLY DEVELOP TOWARD THE I-25 CORRIDOR THROUGH LATE
   AFTERNOON...WITH MARGINALLY SEVERE HAIL AND PERHAPS A FEW STRONG
   WIND GUSTS POSSIBLE. HOWEVER...A PROGRESSIVELY MORE CAPPED/STABLE
   BOUNDARY LAYER SHOULD LIMIT THE EASTWARD EXTENT OF THE SEVERE THREAT
   INTO THE CO PLAINS. OTHERWISE...SLOW SOUTH-SOUTHEAST STORM
   MOTIONS/POTENTIAL FOR ECHO TRAINING AND ABOVE NORMAL PRECIPITABLE
   WATER VALUES WILL SUPPORT A LOCALLY HEAVY RAINFALL THREAT THROUGH
   THE EVENING.
   
   ..GUYER.. 06/27/2007
   
   
   ATTN...WFO...PUB...BOU...CYS...
   
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