MESOSCALE DISCUSSION 1088
   NWS STORM PREDICTION CENTER NORMAN OK
   0854 PM CDT FRI JUN 12 2009
   
   AREAS AFFECTED...PORTIONS OF CNTRL TX INTO FAR S-CNTRL OK
   
   CONCERNING...TORNADO WATCH 390...394...
   
   VALID 130154Z - 130300Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 390...394...CONTINUES.
   
   THREAT FOR LARGE HAIL...DAMAGING WINDS AND A BRIEF TORNADO CONTINUES
   THROUGH 04-05Z FROM ALONG THE RED RIVER IN S-CNTRL OK/N-CNTRL TX SWD
   TOWARDS THE TX HILL COUNTRY. HOWEVER...AN IRREGULAR BUT OVERALL
   DOWNWARD TREND IN CONVECTIVE INTENSITY IS EXPECTED INTO LATE-EVENING
   WITH INCREASINGLY MESSY SUPERCELL STRUCTURES. NOCTURNAL BOUNDARY
   LAYER COOLING HAS COMMENCED AND THIS WILL STRENGTHEN CAPPING
   INVERSION BENEATH THE ELEVATED MIXED LAYER /AS SAMPLED BY 00Z FWD
   RAOB/. IN ADDITION...LARGER-SCALE DESCENT SHOULD INCREASE GIVEN
   GRADUAL UPPER-LEVEL HEIGHT RISES DOWNSTREAM OF AMPLIFYING W COAST
   TROUGH. THIS SCENARIO SHOULD YIELD A DIMINISHING SEVERE THREAT WITH
   TIME THIS EVENING AND IS SUPPORTED BY BULK OF HI-RES AND OPERATIONAL
   MODEL GUIDANCE.
   
   ..GRAMS.. 06/13/2009
   
   
   ATTN...WFO...FWD...OUN...EWX...SJT...
   
   LAT...LON   34149791 34449728 34259633 33799607 32409661 30969762
               30349806 30009907 30289957 30969925 32329785 33079769
               34149791