000 ABNT20 KNHC 052342 TWOAT TROPICAL WEATHER OUTLOOK NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT MON OCT 5 2009 FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO... THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL STORM GRACE...LOCATED SEVERAL HUNDRED MILES SOUTHWEST OF THE SOUTHWESTERN COAST OF IRELAND. A BROAD AREA OF LOW PRESSURE LOCATED ABOUT 875 MILES EAST OF THE LESSER ANTILLES IS MOVING WEST-NORTHWESTWARD AT ABOUT 15 MPH. THE ASSOCIATED SHOWER AND THUNDERSTORM ACTIVITY HAS BECOME A LITTLE BETTER ORGANIZED THIS EVENING AND THIS SYSTEM HAS THE POTENTIAL TO BECOME A TROPICAL DEPRESSION DURING THE NEXT DAY OR SO BEFORE UPPER-LEVEL WINDS BECOME LESS FAVORABLE FOR DEVELOPMENT. THERE IS A MEDIUM CHANCE...30 TO 50 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. PUBLIC ADVISORIES ON GRACE ARE ISSUED UNDER WMO HEADER WTNT34 KNHC AND UNDER AWIPS HEADER MIATCPAT4. FORECAST/ADVISORIES ON GRACE ARE ISSUED UNDER WMO HEADER WTNT24 KNHC AND UNDER AWIPS HEADER MIATCMAT4. $$ FORECASTER BROWN/ROBERTS