000 ABNT20 KNHC 250534 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT TUE AUG 25 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... A LARGE AREA OF CLOUDINESS AND THUNDERSTORMS CENTERED ABOUT 275 MILES EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS IS ASSOCIATED WITH A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL LOW. THERE ARE NO SIGNS OF A SURFACE CIRCULATION AT THIS TIME...BUT UPPER-LEVEL WINDS COULD BECOME A LITTLE MORE FAVORABLE FOR SLOW DEVELOPMENT DURING THE NEXT DAY OR TWO AS THE ACTIVITY MOVES TOWARD THE WEST-NORTHWEST AT 20 TO 25 MPH. THERE IS A MEDIUM CHANCE...30 TO 50 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. AN AREA OF DISTURBED WEATHER ASSOCIATED WITH A BROAD AREA OF LOW PRESSURE LOCATED OVER THE EXTREME SOUTHWESTERN CARIBBEAN SEA IS MOVING WESTWARD OVER SOUTHERN NICARAGUA AND NORTHERN COSTA RICA. DEVELOPMENT IS NOT ANTICIPATED AND...IF ANY...WILL BE SLOW TO OCCUR WHEN THE SYSTEM REACHES THE EASTERN PACIFIC IN A DAY OR SO. THERE IS A LOW CHANCE...LESS THAN 30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER AVILA