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#289379 (Received by flhurricane at: 4:46 AM 19.Aug.2009) TCPAT3 BULLETIN HURRICANE BILL ADVISORY NUMBER 16 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL032009 500 AM AST WED AUG 19 2009 ...BILL STRENGTHENS TO A CATEGORY FOUR HURRICANE... INTERESTS IN THE LEEWARD ISLANDS AND BERMUDA SHOULD MONITOR THE PROGRESS OF BILL. FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE OF THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. AT 500 AM AST...0900 UTC...THE CENTER OF HURRICANE BILL WAS LOCATED NEAR LATITUDE 18.0 NORTH...LONGITUDE 54.9 WEST OR ABOUT 460 MILES... 740 KM...EAST OF THE LEEWARD ISLANDS. BILL IS MOVING TOWARD THE WEST-NORTHWEST NEAR 16 MPH...26 KM/HR... AND A GRADUAL TURN TOWARD THE NORTHWEST IS EXPECTED DURING THE NEXT 24 TO 48 HOURS. ON THIS TRACK...THE CORE OF THIS DANGEROUS HURRICANE WILL BE PASSING WELL TO THE NORTHEAST OF THE NORTHERN LEEWARD ISLANDS LATE TODAY AND EARLY THURSDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 135 MPH...215 KM/HR...WITH HIGHER GUSTS. BILL IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME ADDITIONAL STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS. A NOAA HURRICANE HUNTER AIRCRAFT IS CURRENTLY ENROUTE TO INVESTIGATE BILL. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 948 MB...27.99 INCHES. LARGE SWELLS ASSOCIATED WITH BILL WILL BE IMPACTING THE ISLANDS OF THE NORTHEAST CARIBBEAN SEA DURING THE NEXT DAY OR TWO. LARGE SWELLS ASSOCIATED WITH BILL SHOULD ALSO BEGIN TO AFFECT BERMUDA AND PORTIONS OF THE SOUTHEASTERN COAST OF THE UNITED STATES FRIDAY AND SATURDAY. ...SUMMARY OF 500 AM AST INFORMATION... LOCATION...18.0N 54.9W MAXIMUM SUSTAINED WINDS...135 MPH PRESENT MOVEMENT...WEST-NORTHWEST OR 295 DEGREES AT 16 MPH MINIMUM CENTRAL PRESSURE...948 MB THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 AM AST. $$ FORECASTER BEVEN |