MESOSCALE DISCUSSION 1790
   NWS STORM PREDICTION CENTER NORMAN OK
   0906 PM CDT FRI JUL 29 2011
   
   AREAS AFFECTED...NWRN AND N-CNTRL SD...SWRN AND S-CNTRL ND
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 700...
   
   VALID 300206Z - 300300Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 700
   CONTINUES.
   
   FORWARD PROPAGATING AND LOOSELY ORGANIZED CLUSTER OF TSTMS CONTINUES
   TO SHIFT EWD INTO N-CNTRL SD AND FAR S-CNTRL ND...WITH PRIMARY
   THREAT NOW POSITIONED E OF WW 700. RADAR APPEARANCE SUGGESTS
   STRONGER EMBEDDED CORES ARE STILL CAPABLE OF PRODUCING DMGG WIND
   GUSTS AND HAIL...BUT THREAT APPEARS RATHER LOCALIZED ATTM. 00Z ABR
   SOUNDING SAMPLED STEEP MIDLEVEL LAPSE RATES /7-8 DEG C PER KM/ AND
   MODEST EFFECTIVE SHEAR /AROUND 30 KTS/ PRESENT WITHIN THE DOWNSTREAM
   ENVIRONMENT. HOWEVER...INCREASING CINH IN RESPONSE TO LOSS OF
   DIABATIC HEATING IS EXPECTED TO LEAD TO A DECREASING THREAT OF DMGG
   WINDS OVER THE NEXT 1-2 HRS. THUS...A NEW WW ACROSS N-CNTRL SD AND
   S-CNTRL ND IS NOT CURRENTLY ANTICIPATED.
   
   ..ROGERS.. 07/30/2011
   
   
   ATTN...WFO...ABR...BIS...UNR...BYZ...
   
   LAT...LON   44110075 44070184 45090346 45830406 46530399 46620230
               46480032 46109920 44459924 44110075