MESOSCALE DISCUSSION 0306
   NWS STORM PREDICTION CENTER NORMAN OK
   1024 PM CDT FRI MAR 27 2009
   
   AREAS AFFECTED...SRN AR...NRN LA
   
   CONCERNING...TORNADO WATCH 82...
   
   VALID 280324Z - 280500Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 82 CONTINUES.
   
   A CONVECTIVE LINE CURRENTLY MOVING EWD ACROSS WW 82 WILL CONTINUE TO
   HAVE A SEVERE THREAT OVER THE NEXT FEW HOURS. TORNADOES...LARGE HAIL
   AND WIND DAMAGE WILL BE POSSIBLE WITH THE STRONGER CELL ELEMENTS. A
   NEW TORNADO WATCH MAY BECOME NECESSARY LATE THIS EVENING ACROSS
   PARTS OF NRN AND CNTRL MS.
   
   WATER VAPOR IMAGERY CURRENTLY SHOWS AN UPPER-LEVEL LOW MOVING INTO
   NCNTRL TX WITH A DRY SLOT ADVANCING EWD ACROSS ERN OK AND NE TX.
   AHEAD OF THIS FEATURE...A LINE OF STRONG THUNDERSTORMS IS ORIENTED
   NORTH TO SOUTH ALONG THE WRN EDGE OF A MOIST AXIS. LOWER 60S F
   DEWPOINTS HAVE SO FAR BEEN CONFINED TO THE SRN PART OF THE WATCH.
   HOWEVER...MOISTURE ADVECTION WILL INCREASE AS A LOW-LEVEL JET
   EXPANDS SEWD ACROSS ERN AR OVER THE NEXT 1 TO 3 HOURS. THIS WILL
   RAPIDLY STRENGTHEN LOW-LEVEL FLOW HELPING TO ORGANIZE THE CONVECTION
   ONGOING ACROSS WRN AND SRN AR. AS THE LOW-LEVEL JET DEVELOPS...THE
   POTENTIAL FOR SUPERCELLS SHOULD INCREASE ESPECIALLY ACROSS THE ERN
   PART OF THE WATCH AND IN WCNTRL MS. A FEW TORNADOES...LARGE HAIL AND
   WIND DAMAGE WILL BE POSSIBLE. AN ENHANCED TORNADO/WIND DAMAGE THREAT
   SHOULD EXIST IN THE SERN PART OF WW 82 WHERE A WELL-DEVELOPED BOW
   ECHO IS TRACKING NEWD AT 40 KT IN JACKSON PARISH. THE WIND DAMAGE
   THREAT MAY ALSO BECOME GREATER IF A SQUALL-LINE CAN ORGANIZE AND
   MOVE ACROSS ERN AR INTO WRN MS.
   
   ..BROYLES.. 03/28/2009
   
   
   ATTN...WFO...MEG...JAN...LZK...LCH...SHV...
   
   LAT...LON   31369289 31369336 31129353 31199362 31549382 31859385
               31999402 33499403 33589387 34189410 34199444 34749441
               34669386 34959224 35089209 35069142 34919116 34599110
               34509108 34489098 34419099 34359106 34159110 34069089
               33809114 33749100 33539112 33409097 33239116 33179111
               32999117 32839107 32669118 32579097 32519112 32449100
               32299098 32219143 32269154 32409151 32379170 32219186
               32179205 32259211 32279229 31779238 31779261 31699257
               31689292 31539271 31369289