MESOSCALE DISCUSSION 1040
   NWS STORM PREDICTION CENTER NORMAN OK
   0238 AM CDT THU JUN 11 2009
   
   AREAS AFFECTED...EAST CENTRAL AR/NERN LA/W-NW MS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 371...
   
   VALID 110738Z - 110845Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 371
   CONTINUES.
   
   A NEW SEVERE THUNDERSTORM WATCH MAY BE NEEDED IF BOW MAINTAINS
   CURRENT INTENSITY REACHING FAR NRN MS/WRN TN BETWEEN 09-10Z.
   
   STRONG/DAMAGING WIND GUSTS REMAIN POSSIBLE WITH LINE OF TSTMS OVER
   SERN AR MOVING ENEWD FROM WW 368 INTO NRN PART OF WW 371 BY 08Z.
   
   REGIONAL RADARS INDICATED A LINE OF STRONG TO SEVERE STORMS
   EXTENDING FROM LONOKE TO DESHA COUNTIES AR AND TRACKING ENEWD AT 40
   KT.  SATELLITE/RADAR IMAGERY MAINTAIN DEPICTION OF AN MCV WITH THE
   MCS MOVING ENEWD ACROSS LOWER MS VALLEY.  STRONGEST/MORE INTENSE
   TSTM ACTIVITY IS LOCATED ALONG THE NRN EXTENT OF THE PREVIOUS
   BOW...WITH THIS LINE EXPECTED TO REACH NWRN MS BETWEEN 08-09Z. 
   OBJECTIVE ANALYSES SHOWED WEAKER SURFACE BASED INHIBITION EXTENDING
   FROM THESE TSTMS NEWD INTO NWRN MS/WRN TN WITH ACTIVITY TRACKING
   ALONG MODERATE INSTABILITY GRADIENT.  GIVEN SPEED OF THIS LINE OF
   TSTMS...WEAK INHIBITION ALLOWING STRONGER WIND GUSTS TO REACH THE
   SURFACE...AND FORCING FOR ASCENT ATTENDANT TO MCV...AN ORGANIZED
   LINE IS EXPECTED TO BE MAINTAINED FOR ANOTHER 2-3 HOURS /BEYOND
   10Z/.
   
   FARTHER S...LIGHTNING HAS DIMINISHED GREATLY AS THE SRN EXTENT OF
   THE CONVECTIVE LINE ENCOUNTERED A STRONGER CAP.  SRN PART OF WW 371
   CAN BE CANCELLED EARLY...ESPECIALLY ACROSS NERN LA INTO PART OF WEST
   CENTRAL MS.
   
   ..PETERS.. 06/11/2009
   
   
   ATTN...WFO...OHX...MEG...JAN...LZK...
   
   LAT...LON   31959172 33339204 33769123 34459136 34959137 35789034
               36388922 36398823 35048817 32968998 32299085 31959172