MESOSCALE DISCUSSION 1930
   NWS STORM PREDICTION CENTER NORMAN OK
   0857 AM CDT WED OCT 06 2010
   
   AREAS AFFECTED...CNTRL/NRN AZ
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 692...
   
   VALID 061357Z - 061600Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 692
   CONTINUES.
   
   A WELL DEFINED UPPER VORT LOBE IS CURRENTLY ROTATING NWD ACROSS
   CNTRL AZ WHICH IS HELPING TO ENHANCE LIFT IN CONJUNCTION WITH MOIST
   SLY UPSLOPE FLOW.  THE 12Z FGZ SOUNDING SHOWED STEEP LAPSE RATES AND
   STRONG DEEP LAYER SHEAR PROFILES WITH EFFECTIVE SRH NEAR 300 M2/S2
   AND LOW LCLS...A FAVORABLE SUPERCELL TORNADO ENVIRONMENT. CONTINUED
   REDEVELOPMENT IS LIKELY THROUGH ABOUT 18Z BEFORE UPPER LEVEL WINDS
   VEER WITH THE PASSAGE OF THE SHORTWAVE TROUGH...WHICH MAY
   TEMPORARILY ALLOW ACTIVITY TO DECREASE. HOWEVER...GIVEN DIURNAL
   CONSIDERATIONS...ADDITIONAL ACTIVITY MAY REDEVELOP ALONG THE RIM
   LATER THIS AFTERNOON.
   
   ..JEWELL.. 10/06/2010
   
   
   ATTN...WFO...FGZ...PSR...
   
   LAT...LON   35041289 35401258 35751167 35591115 34771092 34101078
               33831092 33921147 33941209 34061258 34171295 34561292
               35041289