000 ABNT20 KNHC 232335 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT SUN AUG 23 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON HURRICANE BILL...LOCATED ABOUT 230 MILES WEST OF CAPE RACE NEWFOUNDLAND. SHOWERS AND THUNDERSTORMS HAVE INCREASED OVER THE PAST SEVERAL HOURS IN ASSOCIATION WITH A TROPICAL WAVE INTERACTING WITH AN UPPER-LEVEL LOW ABOUT 600 MILES EAST OF THE LEEWARD ISLANDS. ANY DEVELOPMENT OF THIS SYSTEM WILL BE SLOW TO OCCUR 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 BRENNAN