MESOSCALE DISCUSSION 0195
   NWS STORM PREDICTION CENTER NORMAN OK
   0348 PM CST THU FEB 21 2013
   
   AREAS AFFECTED...FAR ERN LA...SRN MS
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 212148Z - 212245Z
   
   PROBABILITY OF WATCH ISSUANCE...40 PERCENT
   
   SUMMARY...THREAT FOR ISOLATED DAMAGING WINDS MAY DEVELOP DOWNSTREAM
   OF WW 37. ALTHOUGH SETUP MAY BE MARGINAL FOR A WW ISSUANCE...IT WILL
   BE CONSIDERED IN THE NEXT HOUR OR SO.
   
   DISCUSSION...MOST INTENSE CONVECTION REMAINS INVOF TRIPLE POINT IN
   CNTRL LA AROUND 20 NE POE. PORTIONS OF THE LINE HAVE
   ACCELERATED...PRIMARILY ALONG THE OCCLUDED FRONT IN N-CNTRL LA.
   SURFACE WARM FRONT HAS BEEN ADVANCING NEWD IN CNTRL LA...BUT MORE
   SLOWLY WITH ERN EXTENT IN SERN LA. WITH LOW-LEVEL WAA-DRIVEN
   RAINFALL LIKELY RETARDING FURTHER ADVANCEMENT...AIR MASS SHOULD
   REMAIN ONLY WEAKLY BUOYANT DOWNSTREAM OF WW 37. WITH THIS REGION
   ALSO MARKING THE TRANSITION BETWEEN SURFACE TO ELEVATED
   PARCELS...ALONG WITH WEAKENING LOW-LEVEL FLOW AS CNTRL PLAINS SHORT
   WAVE TROUGH MOVES N/NEWD THIS EVENING...SETUP APPEARS MARGINAL FOR
   ISOLATED DAMAGING WINDS.
   
   ..GRAMS/HART.. 02/21/2013
   
   
   ATTN...WFO...JAN...LIX...
   
   LAT...LON   32279176 32279119 32189069 32069005 31678946 31338932
               31118945 30818969 30649014 30809080 30939113 31439188
               32279176