000 ABNT20 KNHC 202331 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT WED OCT 20 2010 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... SHOWERS AND THUNDERSTORMS ASSOCIATED WITH THE LOW PRESSURE SYSTEM CENTERED ABOUT 140 MILES SOUTH OF GRAND CAYMAN HAVE CHANGED LITTLE IN ORGANIZATION DURING THE LAST SEVERAL HOURS. UPPER-LEVEL WINDS ARE FORECAST TO BECOME MORE CONDUCIVE FOR DEVELOPMENT OVER THE NEXT DAY OR TWO...AND A TROPICAL DEPRESSION COULD FORM AT ANY TIME TONIGHT OR THURSDAY. THERE IS A HIGH CHANCE...80 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MEANDERS SLOWLY. INTERESTS IN THE NORTHWESTERN CARIBBEAN SEA SHOULD CONTINUE TO MONITOR THE PROGRESS OF THIS DISTURBANCE. REGARDLESS OF DEVELOPMENT...HEAVY RAINFALL IS POSSIBLE OVER THE CAYMAN ISLANDS AND JAMAICA DURING THE NEXT COUPLE OF DAYS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER KIMBERLAIN/PASCH