000 WTNT33 KNHC 310853 TCPAT3 BULLETIN TROPICAL STORM FIONA ADVISORY NUMBER 3 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082010 500 AM AST TUE AUG 31 2010 ...FIONA REMAINS A WEAK TROPICAL STORM... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...15.8N 53.0W ABOUT 590 MI...950 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/HR PRESENT MOVEMENT...WNW OR 285 DEGREES AT 23 MPH...37 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 WATCH IN IN EFFECT FOR... * ANTIGUA...BARBUDA...MONTSERRAT...ST. KITTS...NEVIS...AND ANGUILLA * ST. MAARTEN...SABA...AND ST. EUSTATIUS A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 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 THIS MORNING. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 AM AST...0900 UTC...THE CENTER OF TROPICAL STORM FIONA WAS LOCATED NEAR LATITUDE 15.8 NORTH...LONGITUDE 53.0 WEST. FIONA IS MOVING TOWARD THE WEST-NORTHWEST NEAR 23 MPH...37 KM/HR. A GRADUAL TURN TOWARD THE NORTHWEST WITH A DECREASE IN FORWARD SPEED IS ANTICIPATED DURING THE NEXT 48 HOURS. 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 REMAIN NEAR 40 MPH...65 KM/HR...WITH HIGHER GUSTS. SOME SLOW STRENGTHENING IS POSSIBLE DURING THE NEXT DAY OR TWO. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE 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 INTERMEDIATE ADVISORY...800 AM AST. NEXT COMPLETE ADVISORY...1100 AM AST. $$ FORECASTER CANGIALOSI/BLAKE