MESOSCALE DISCUSSION 1006
   NWS STORM PREDICTION CENTER NORMAN OK
   0201 AM CDT TUE JUN 05 2007
   
   AREAS AFFECTED...SW TX INTO RIO GRANDE VALLEY
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 050701Z - 050800Z
   
   ISOLATED STRONG WIND GUSTS REMAIN POSSIBLE SEWD INTO THE RIO GRANDE
   VALLEY THROUGH THE OVERNIGHT PERIOD.  CONVECTIVE TRENDS AND TRACK OF
   SYSTEM WILL CONTINUE TO BE MONITORED FOR POTENTIAL WATCH ISSUANCE.
   
   AIR MASS DOWNSTREAM OF FORWARD PROPAGATING MCS...NOW APPROACHING THE
   TX BIG BEND REGION...REMAINS MODERATELY TO VERY UNSTABLE /MLCAPE
   1500-3000 J/KG/ SEWD ALONG THE LOWER HALF OF THE RIO GRANDE VALLEY. 
   ALTHOUGH LOW LEVEL WINDS ARE GENERALLY LIGHT SELY...THESE WINDS
   LOCATED BENEATH STRONGER NWLY MID LEVEL WINDS AT 30-40 KT ARE
   MAINTAINING EFFECTIVE BULK SHEAR OF 30-45 KT FOR STORM ORGANIZATION
   AND CONTINUED MAINTENANCE OF MCS.  RECENT IR IMAGERY INDICATED CLOUD
   TOPS WITH THIS MCS HAVE BECOME COLDER ON THE LEADING EDGE NOW MOVING
   INTO TERRELL COUNTY.  GIVEN DEGREE OF DOWNSTREAM INSTABILITY...THE
   POTENTIAL EXISTS FOR AT LEAST NEAR SEVERE AND/OR ISOLATED SEVERE
   WIND GUSTS.
   
   ..PETERS.. 06/05/2007
   
   
   ATTN...WFO...CRP...EWX...SJT...MAF...
   
   29760250 30020269 30250231 30680203 30580174 30400124
   29639965 29149860 28489897 27890006 29320137