MESOSCALE DISCUSSION 0001
   NWS STORM PREDICTION CENTER NORMAN OK
   0722 PM CST FRI DEC 31 2010
   
   AREAS AFFECTED...NERN LA...CNTRL AND NRN MS...FAR WRN AL
   
   CONCERNING...TORNADO WATCH 772...773...
   
   VALID 010122Z - 010315Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 772...773...CONTINUES.
   
   THE THREAT FOR SEVERE WIND...HAIL...AND TORNADOES WILL PERSIST THIS
   EVENING.
   
   A GRADUAL INCREASE IN INTENSITY HAS BEEN NOTED OVER THE LAST COUPLE
   HOURS WITH STORMS OVER NRN LA AND SWRN MS...ON THE LEADING EDGE OF A
   MORE SUBSTANTIAL GULF MOISTURE RETURN WITH DEWPOINTS OF 68-70F. THE
   00Z LCH SOUNDING SHOWED SUBSTANTIAL BOUNDARY LAYER MOISTURE IN PLACE
   BENEATH RATHER STEEP MID LEVEL LAPSE RATES. WHILE INSTABILITY WILL
   BE SLIGHTLY LESS FARTHER N...GRADUALLY COOLING PROFILES ALOFT AND A
   STRENGTHENING LOW LEVEL JET WILL FAVOR SEVERE STORMS EVEN INTO NRN
   MS AND WRN TN.
   
   DEEP LAYER SHEAR PROFILES ARE FAVORABLE FOR SUPERCELLS
   AREA-WIDE...BUT LOW LEVEL SHEAR WILL BE MOST FAVORABLE OVER MS WHERE
   A 50-60 KT LOW LEVEL JET WILL SET UP LATER THIS EVENING. ONGOING
   SUPERCELLS OVER NERN LA WILL CONTINUE TO POSE A THREAT AS THEY
   TRAVEL NEWD...AS WELL AS ANY OTHER CELLS THAT MAY DEVELOP ALONG THE
   MOISTURE SURGE EXTENDING EWD ACROSS CNTRL MS AND EVENTUALLY INTO WRN
   AL.
   
   ..JEWELL.. 01/01/2011
   
   
   ATTN...WFO...BMX...MOB...MEG...JAN...LIX...LZK...LCH...SHV...
   
   LAT...LON   32668790 31918866 31149020 31109106 30989330 31319356
               32239265 33379150 34759028 34898963 34818877 34028825
               32668790