MESOSCALE DISCUSSION 1455
   NWS STORM PREDICTION CENTER NORMAN OK
   0122 PM CDT MON JUL 06 2009
   
   AREAS AFFECTED...SERN WY/ERN CO/NERN NM
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 061822Z - 062015Z
   
   CONVECTION SLOWLY INCREASING ACROSS THE E SLOPES OF THE ROCKIES MAY
   EVENTUALLY REQUIRE WW ISSUANCE.
   
   CUMULUS DEVELOPMENT CONTINUES EARLY THIS AFTERNOON ACROSS THE HIGHER
   TERRAIN FROM SERN WY SWD INTO NRN NM...AHEAD OF A WEAK MID-LEVEL
   SHORT-WAVE FEATURE MOVING ACROSS THE FOUR CORNERS AREA WITHIN THE
   BROADER SHORT-WAVE RIDGE.  THIS FEATURE APPEARS TO BE ASSISTING IN
   SOME BACKING OF THE LOW-LEVEL FLOW FIELD OVER THE HIGH PLAINS --
   WITH GENERALLY SELY FLOW NOW INDICATED.  
   
   STRONG DIURNAL HEATING WILL CONTINUE ACROSS THIS REGION...AND WITH
   DEWPOINTS NEAR 60 ADVECTING NWWD ACROSS THE HIGH
   PLAINS...MIXED-LAYER CAPE /NOW IN THE 500 TO 1000 J/KG RANGE/ WILL
   CONTINUE TO INCREASE.  THIS COMBINED WITH THE WEAK UPSLOPE FLOW
   SHOULD SUPPORT CONTINUED/SLOW DEVELOPMENT OF SCATTERED
   THUNDERSTORMS...WITH STORMS SHIFTING SLOWLY SEWD WITH TIME OFF THE
   HIGHER TERRAIN AND INTO THE HIGH PLAINS.
   
   ONLY MODEST NWLYS ARE INDICATED THROUGH THE MIDDLE TROPOSPHERE
   ACROSS THE CENTRAL ROCKIES/HIGH PLAINS.  HOWEVER...VEERING FLOW WITH
   HEIGHT SHOULD RESULT IN SHEAR SUFFICIENT FOR SOME ORGANIZATION/WEAK
   ROTATION...AND ASSOCIATED/LOCAL THREATS FOR HAIL/WIND -- OR EVEN AN
   ISOLATED WEAK/BRIEF TORNADO.  EVENTUAL COVERAGE OF CONVECTION/SEVERE
   THREAT MAY WARRANT WW ISSUANCE.
   
   ..GOSS.. 07/06/2009
   
   
   ATTN...WFO...GLD...AMA...PUB...BOU...CYS...ABQ...
   
   LAT...LON   40940539 41840492 41570390 40440275 37500248 35500282
               35120436 35540536 36790555 38370529 39220500 40940539