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#372696 (Received by flhurricane at: 1:59 PM 31.Aug.2010) TCPAT3 BULLETIN TROPICAL STORM FIONA INTERMEDIATE ADVISORY NUMBER 4A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082010 200 PM AST TUE AUG 31 2010 ...AIRCRAFT REACHES THE CENTER OF FIONA... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...16.3N 56.8W ABOUT 335 MI...540 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/HR PRESENT MOVEMENT...WNW OR 285 DEGREES AT 24 MPH...39 KM/HR MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * ST. MARTIN AND ST. BARTHELEMY A TROPICAL STORM WATCH IS IN EFFECT FOR... * ANTIGUA...BARBUDA...MONTSERRAT...ST. KITTS...NEVIS...AND ANGUILLA * ST. MAARTEN...SABA...AND ST. EUSTATIUS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 24 HOURS. INTERESTS ELSEWHERE IN THE NORTHERN LEEWARD ISLANDS SHOULD MONITOR THE PROGRESS OF FIONA. ADDITIONAL WATCHES OR WARNINGS MAY BE REQUIRED FOR A PORTION OF THIS AREA LATER TODAY. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 200 PM AST...1800 UTC...THE CENTER OF TROPICAL STORM FIONA WAS LOCATED NEAR LATITUDE 16.3 NORTH...LONGITUDE 56.8 WEST. FIONA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 24 MPH...39 KM/HR. A TURN TOWARD THE NORTHWEST WITH A DECREASE IN FORWARD SPEED IS ANTICIPATED DURING THE NEXT DAY OR SO. ON THE FORECAST TRACK...THE CENTER OF FIONA IS EXPECTED TO PASS NEAR OR NORTHEAST OF THE NORTHERN LEEWARD ISLANDS EARLY WEDNESDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH...65 KM/HR...WITH HIGHER GUSTS. SOME GRADUAL STRENGTHENING IS POSSIBLE DURING THE NEXT DAY OR SO. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM TO THE NORTHEAST OF THE CENTER. THE LATEST MINIMUM CENTRAL PRESSURE ESTIMATED FROM RECONNAISSANCE AIRCRAFT DATA IS 1006 MB...29.71 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS COULD SPREAD OVER PORTIONS OF THE NORTHERN LEEWARD ISLANDS TONIGHT OR EARLY WEDNESDAY. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...500 PM AST. $$ FORECASTER BROWN |