MESOSCALE DISCUSSION 0781
   NWS STORM PREDICTION CENTER NORMAN OK
   0758 PM CDT FRI MAY 13 2011
   
   AREAS AFFECTED...WESTERN KY/MIDDLE TN AND EASTERN/SOUTHERN MS INTO
   AL
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 300...
   
   VALID 140058Z - 140200Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 300
   CONTINUES.
   
   SEVERE TSTM WATCH 300 CONTINUES UNTIL 06Z...WITH DAMAGING
   WINDS/SEVERE HAIL REMAINING A CONCERN THROUGH MID EVENING PRIMARILY
   ACROSS PORTIONS OF EASTERN MS/WESTERN AL. WHILE THE SEVERE THREAT
   MAY REMAIN RELATIVELY ISOLATED...MONITORING PORTIONS OF SOUTHERN
   MS/EASTERN LA INTO SOUTHERN AL FOR THE POSSIBILITY OF A WATCH.
   
   A SQUALL LINE CONTINUES TO STEADILY PROGRESS EASTWARD FROM AREAS
   NEAR THE OH RIVER/WEST-CENTRAL KY INTO MIDDLE TN AND FAR NORTHEAST
   MS/NORTHWEST AL...WITH MORE SCATTERED/DISCRETE TSTMS IN AN
   UNSTABLE/MOIST SECTOR FROM EAST-CENTRAL MS/WEST-CENTRAL AL TO
   SOUTHERN MS/EASTERN LA. THE SQUALL LINE ACROSS KY/MIDDLE TN WILL
   CONTINUE TO ENCOUNTER A MORE STABLE AIRMASS IN THE WAKE OF EARLY DAY
   CONVECTION /REFERENCE 00Z NASHVILLE OBSERVED RAOB/...WITH THE
   POTENTIAL FOR DAMAGING WINDS CONTINUING TO WANE THIS EVENING. THE
   SEVERE THREAT WILL LINGER LONGER ACROSS EAST-CENTRAL/SOUTHERN MS
   INTO WESTERN AL/EASTERN LA. AS DPVA AT LEAST GLANCES THE
   REGION...THESE AREAS WILL REMAIN IN CLOSER PROXIMITY TO A MOIST
   AIRMASS/RESERVOIR OF MODERATE TO STRONG INSTABILITY PER 00Z OBSERVED
   RAOBS FROM LAKE CHARLES/NEW ORLEANS AND JACKSON MS /ALBEIT SOMEWHAT
   CONVECTIVELY CONTAMINATED/.
   
   ..GUYER.. 05/14/2011
   
   
   ATTN...WFO...LMK...OHX...BMX...HUN...MOB...PAH...MEG...JAN...
   LIX...
   
   LAT...LON   37328724 37708669 35888638 30868885 30789173 33178956
               35798749 37328724