000 ABNT20 KNHC 312335 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT SUN JUL 31 2011 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... AN ELONGATED AREA OF LOW PRESSURE EXTENDING FROM THE LESSER ANTILLES EASTWARD SEVERAL HUNDRED MILES INTO THE TROPICAL ATLANTIC OCEAN IS PRODUCING A LARGE BUT DISORGANIZED AREA OF SHOWERS AND THUNDERSTORMS. CONDITIONS ARE EXPECTED TO REMAIN FAVORABLE FOR A TROPICAL DEPRESSION OR TROPICAL STORM TO FORM...AND THIS SYSTEM HAS A HIGH CHANCE...90 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS AS IT MOVES WEST-NORTHWESTWARD AT AROUND 15 MPH. IF THE SYSTEM BECOMES A TROPICAL CYCLONE TONIGHT OR MONDAY... TROPICAL STORM WATCHES OR WARNINGS WOULD BE ISSUED FOR PORTIONS OF THE NORTHERN WINDWARD ISLANDS AND THE LEEWARD ISLANDS ON VERY SHORT NOTICE...AND INTERESTS IN THESE AREAS SHOULD CLOSELY MONITOR THE PROGRESS OF THIS SYSTEM. A HURRICANE HUNTER AIRCRAFT IS SCHEDULED TO INVESTIGATE THIS SYSTEM MONDAY MORNING. REGARDLESS OF TROPICAL CYCLONE FORMATION...THIS SYSTEM WILL BRING LOCALLY HEAVY RAINFALL AND GUSTY WINDS TO PORTIONS OF THE LESSER ANTILLES TONIGHT AND MONDAY. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER BRENNAN