MESOSCALE DISCUSSION 1224
   NWS STORM PREDICTION CENTER NORMAN OK
   0854 PM CDT TUE JUN 14 2011
   
   AREAS AFFECTED...NORTHEAST/CENTRAL/SOUTHWEST OK AND FAR NWRN TX
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 476...
   
   VALID 150154Z - 150300Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 476
   CONTINUES.
   
   SCATTERED STRONG TO SEVERE STORMS ARE MARCHING EWD THROUGH MUCH OF
   CENTRAL AND SOUTHWEST OKLAHOMA...AHEAD OF A COLD FRONT THAT
   STRETCHED FROM NEAR BVO TO OKC AREA TO WEST OF SPS  SOME OF THE
   STORMS DURING THE PAST COUPLE OF HOURS PRODUCED WINDS IN EXCESS OF
   80 MPH AND GOLF BALL TO TENNIS BALL SIZED HAIL. WHILE THE THREAT OF
   SEVERE WEATHER WILL CONTINUE WITH THESE STORMS THROUGH THE EVENING
   ...THE THREAT FOR THE MORE EXTREME SEVERE WEATHER IS DIMINISHING
   WITH THE LOSS OF DAYTIME HEATING AND THE COOLING BOUNDARY LAYER FROM
   STORM OUTFLOWS. HOWEVER....HAIL FROM QUARTER TO GOLF BALL SIZED AND
   WINDS FROM 60 TO 70 MPH WILL BE POSSIBLE WITH THE STRONGER STORMS. 
   THE STORMS SHOULD CONTINUE TO DEVELOP/SPREAD NEWD TOWARD TULSA...AND
   SPREAD EWD TOWARD ADM...MLC AND MKO AREAS. THE STORMS WILL BE ENDING
   FROM WEST TO EAST AS THE FRONT MOVES EWD THROUGH THE STATE. 
   
   A CLUSTER OF STRONG STORMS ABOUT 45 S OF SPS ARE SHIFTING EWD
   THROUGH THE SRN END OF THE WATCH. THESE STORMS ARE MORE ISOLATED AND
   IT IS UNCLEAR IF ANOTHER WATCH WOULD BE NEEDED EWD INTO NRN TX.
   
   ..IMY.. 06/15/2011
   
   
   ATTN...WFO...SGF...TSA...ICT...FWD...OUN...SJT...
   
   LAT...LON   33729939 35099807 35859703 36079680 36619609 36919567
               37009519 37059427 36839422 34749677 34089763 33459804
               33379937 33729939