MESOSCALE DISCUSSION 0927
   NWS STORM PREDICTION CENTER NORMAN OK
   0524 PM CDT WED MAY 14 2008
   
   AREAS AFFECTED...CNTRL/SRN LA
   
   CONCERNING...TORNADO WATCH 321...
   
   VALID 142224Z - 142330Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 321 CONTINUES.
   
   RETRANSMITTED PER REQUEST
   
   THE THREAT FOR ISOLATED TORNADOES...DAMAGING WINDS AND HAIL
   CONTINUES ACROSS WW AREA.  THROUGH 23Z...THIS THREAT WILL BE
   ENHANCED OVER E-CNTRL PORTIONS OF WW AREA...NAMELY OVER
   LIVINGSTON...TANGIPAHOA AND ST. TAMMANY PARISHES.
   
   AS OF 2145Z...LOCAL RADAR DATA INDICATED A LARGE AND INTENSE HP
   SUPERCELL OVER LIVINGSTON PARISH MOVING 273/25KT.  SURFACE
   OBSERVATIONS WITHIN INFLOW REGION OF THIS STORM ARE SHOWING
   GUSTY...ESELY WINDS...EFFECTIVELY ENHANCING STORM-RELATIVE INFLOW. 
   BOUNDARY LAYER AIR MASS OVER SRN LA IS QUITE MOIST WITH T/TD SPREADS
   OF GENERALLY LESS 7-10 F.  GIVEN THE COMBINATION OF RELATIVELY
   STRONG LOW-LEVEL SHEAR AND LOW LCL/LFC HEIGHTS...EXPECT ONGOING
   SUPERCELL TO MAINTAIN A STRONG LOW-LEVEL MESOCYCLONE CAPABLE OF
   ISOLATED TORNADOES.  ADDITIONALLY...LARGE HAIL AND DAMAGING OUTFLOW
   WINDS WILL ALSO REMAIN POSSIBLE.
   
   ELSEWHERE...TRAILING MCS REMAINS RATHER DISORGANIZED FROM NEAR MCB
   SWWD TO LFT.  LOCALLY STRONG WIND GUSTS WILL LIKELY CONTINUE ALONG
   LEADING EDGE OF SYSTEM COLD POOL ALONG WITH HEAVY RAINFALL.
   
   ..MEAD.. 05/14/2008
   
   
   ATTN...WFO...JAN...LIX...LCH...SHV...
   
   30949368 31829180 31888962 30898944 30338948 30088862
   28758893 28809035 29349189 29499369 29719411