MESOSCALE DISCUSSION 0770
   NWS STORM PREDICTION CENTER NORMAN OK
   0941 PM CDT THU MAY 12 2011
   
   AREAS AFFECTED...FAR NORTH TX AND SOUTH-CENTRAL/EASTERN OK AND
   NORTHERN AR/SOUTH-CENTRAL MO
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 293...
   
   VALID 130241Z - 130345Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 293
   CONTINUES.
   
   GIVEN THE SCHEDULED 03Z EXPIRATION OF SEVERE TSTM WATCH 293...A
   REPLACEMENT WATCH WILL NEED TO BE CONSIDERED FOR PORTIONS OF THE
   REGION. 
   
   A BROKEN CORRIDOR OF STRONG/SEVERE TSTMS CONTINUES FROM FAR
   NORTH-CENTRAL AR SOUTHWESTWARD INTO SOUTHEAST OK LATE THIS EVENING.
   AS AN UPPER VORT MAX PIVOTS EASTWARD/HEIGHT FALLS OCCUR...ADDITIONAL
   STRONG/SEVERE TSTM DEVELOPMENT IS POSSIBLE INTO THE OVERNIGHT WITHIN
   A RESIDUALLY UNSTABLE AIRMASS FROM SOUTHEAST OK INTO MUCH OF AR.
   WITH A CONTINUING CONCERN FOR AT LEAST ISOLATED BOUTS OF SEVERE
   HAIL/DAMAGING WINDS...A REPLACEMENT SEVERE TSTM WATCH MAY BE NEEDED.
   
   ..GUYER.. 05/13/2011
   
   
   ATTN...WFO...PAH...MEG...LSX...LZK...SGF...SHV...TSA...FWD...
   OUN...
   
   LAT...LON   37689244 37689132 35229103 33839666 35179505 36209345
               37689244