000 ABNT20 KNHC 210546 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 100 AM EST MON NOV 21 2011 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A BROAD LOW PRESSURE SYSTEM LOCATED ABOUT 850 MILES NORTHEAST OF THE LEEWARD ISLANDS CONTINUES TO PRODUCE A LARGE AREA OF CLOUDINESS... SHOWERS AND A FEW THUNDERSTORMS MAINLY TO THE NORTH AND EAST OF ITS CENTER. THIS SYSTEM IS FORECAST TO STRENGTHEN AND PRODUCE GALE-FORCE WINDS OVER THE NEXT COUPLE OF DAYS...AND IT IS POSSIBLE THAT THE LOW COULD GRADUALLY ACQUIRE SUBTROPICAL CHARACTERISTICS BEFORE IT MOVES OVER COOLER WATER. THIS SYSTEM HAS A MEDIUM CHANCE...40 PERCENT...OF BECOMING A SUBTROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES NORTH-NORTHEASTWARD AT 10 TO 15 MPH. ADDITIONAL INFORMATION ON THIS LARGE WEATHER SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER STEWART