MESOSCALE DISCUSSION 0198
   NWS STORM PREDICTION CENTER NORMAN OK
   0853 PM CST THU FEB 21 2013
   
   AREAS AFFECTED...SRN MS
   
   CONCERNING...TORNADO WATCH 38...
   
   VALID 220253Z - 220400Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 38 CONTINUES.
   
   SUMMARY...ENVIRONMENT REMAINS CONDUCIVE FOR ROTATING STORMS CAPABLE
   OF PRODUCING DAMAGING WINDS AND A TORNADO OR TWO THIS EVENING.
   
   DISCUSSION...ALTHOUGH THE PRIMARY SYNOPTIC LOW HAS CONTINUED TO
   WEAKEN THIS EVENING AND MOVED NNEWD INTO WEST CENTRAL-NWRN
   MS...WHILE THE ATTENDANT SSWLY LLJ SHIFTS NWD TOO...THE SRN EXTENT
   OF THE 50-60 KT LLJ REMAINS OVER WW 38 RESULTING IN CONTINUED STRONG
   LOW LEVEL SHEAR. A MOIST WARM SECTOR /SURFACE DEWPOINTS IN THE
   MID-UPPER 60S/ RESIDES FROM SERN LA INTO SRN MS...BOUNDED ON THE N
   BY A WARM FRONT WHICH EXTENDED SEWD FROM A TRIPLE POINT LOCATED
   BETWEEN KTVR AND KJAN THROUGH SERN MS. STORMS HAVE TENDED TO PRODUCE
   LOW LEVEL ROTATION COUPLETS AS THEY CROSSED THE WARM FRONT...THOUGH
   A RECENT STORM LOCATED IN THE WARM SECTOR ALONG THE LA/MS BORDER
   /MOSTLY LOCATED IN SWRN AMITE COUNTY MS/ IS SHOWING SOME MOTION TO
   THE RIGHT WITH LOW LEVEL ROTATION. THUS...THE AFOREMENTIONED
   MOISTURE...STRONG LOW LEVEL SHEAR AND EFFECTIVE BULK SHEAR REMAIN
   CONDUCIVE TO SUPPORT SUPERCELLS WITH THE POTENTIAL TO PRODUCE
   DAMAGING WINDS AND A TORNADO THREAT.
   
   ..PETERS.. 02/22/2013
   
   
   ATTN...WFO...MOB...JAN...LIX...
   
   LAT...LON   31029160 32099054 32198961 32098924 31708902 31188912
               30918919 30998962 30959153 31029160