000 ABNT20 KNHC 010531 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 200 AM EDT MON AUG 1 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 AREA OF CLOUDINESS...SHOWERS...AND THUNDERSTORMS. THE THUNDERSTORM ACTIVITY HAS BECOME MORE CONCENTRATED ABOUT 350 MILES EAST OF MARTINIQUE...AND A TROPICAL DEPRESSION OR A TROPICAL STORM COULD FORM IN THIS AREA LATER TODAY. 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 TODAY...TROPICAL STORM 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 THE AREA THIS MORNING. REGARDLESS OF TROPICAL CYCLONE FORMATION...THIS SYSTEM WILL BRING LOCALLY HEAVY RAINFALL AND GUSTY WINDS TO PORTIONS OF THE LESSER ANTILLES TODAY AND TONIGHT. ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. $$ FORECASTER PASCH