000 ABNT20 KNHC 240541 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT MON AUG 24 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE BILL...LOCATED ABOUT 90 MILES NORTH-NORTHWEST OF CAPE RACE NEWFOUNDLAND. DISORGANIZED SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL LOW ARE LOCATED ABOUT 450 MILES EAST OF THE LEEWARD ISLANDS. SOME SLOW DEVELOPMENT OF THIS SYSTEM IS POSSIBLE OVER THE NEXT COUPLE OF DAYS AS IT MOVES TOWARD THE WEST-NORTHWEST AT 20 TO 25 MPH. 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 ROBERTS/BROWN