MESOSCALE DISCUSSION 2071
   NWS STORM PREDICTION CENTER NORMAN OK
   1110 PM CDT WED OCT 17 2012
   
   AREAS AFFECTED...PARTS OF NRN AND CENTRAL AL
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 180410Z - 180545Z
   
   PROBABILITY OF WATCH ISSUANCE...60 PERCENT
   
   SUMMARY...BAND OF STORMS ADVANCING EWD INTO AL MAY REQUIRE NEW WW
   ISSUANCE...
   
   DISCUSSION...LATEST RADAR IMAGERY SHOWS A BAND OF STORMS WITH
   EMBEDDED BOWS/LEWPS MARCHING EWD ACROSS NRN MS ATTM.  THE DOWNSTREAM
   AIRMASS ACROSS AL INCLUDES A MUCH MORE STABLE BOUNDARY
   LAYER...SUGGESTING THAT SEVERE POTENTIAL SHOULD SLOWLY DIMINISH WITH
   TIME AS STORMS BECOME INCREASINGLY ELEVATED.
   
   STILL...GIVEN THE WELL-ORGANIZED NATURE OF THE LINE -- OWING TO THE
   VERY DYNAMIC MID-LEVEL SYSTEM...EXPECT SOME THREAT FOR LOCALLY
   DAMAGING GUSTS WILL LIKELY PERSIST FOR AT LEAST A COUPLE MORE HOURS.
   THUS...NEW WW MAY BE REQUIRED.
   
   ..GOSS/CORFIDI.. 10/18/2012
   
   
   ATTN...WFO...BMX...HUN...
   
   LAT...LON   34908563 34058549 32878621 32288740 32528833 34018810
               34958729 34908563