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#289757 (Received by flhurricane at: 7:46 PM 20.Aug.2009) TCPAT3 BULLETIN HURRICANE BILL INTERMEDIATE ADVISORY NUMBER 22A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL032009 800 PM AST THU AUG 20 2009 ...LARGE AND DANGEROUS HURRICANE BILL CONTINUES NORTHWESTWARD... A TROPICAL STORM WARNING AND A HURRICANE WATCH ARE IN EFFECT FOR BERMUDA. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 24 HOURS. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 36 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE OF THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. 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. AT 800 PM AST...0000 UTC...THE EYE OF HURRICANE BILL WAS LOCATED NEAR LATITUDE 24.4 NORTH...LONGITUDE 63.9 WEST OR ABOUT 550 MILES... 885 KM...SOUTH OF BERMUDA AND ABOUT 1020 MILES...1640 KM...SOUTHEAST OF CAPE HATTERAS NORTH CAROLINA. BILL IS MOVING TOWARD THE NORTHWEST NEAR 18 MPH...30 KM/HR. THIS MOTION SHOULD CONTINUE THROUGH TONIGHT WITH A GRADUAL TURN TO THE NORTH-NORTHWEST ON FRIDAY...FOLLOWED BY A TURN TOWARD THE NORTH ON SATURDAY. ON THE FORECAST TRACK...THE CORE OF THE HURRICANE IS EXPECTED TO PASS BETWEEN BERMUDA AND THE EAST COAST OF THE UNITED STATES ON SATURDAY. MAXIMUM SUSTAINED WINDS ARE NEAR NEAR 125 MPH...205 KM/HR...WITH HIGHER GUSTS. BILL IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON SCALE. SOME FLUCTUATIONS IN INTENSITY ARE LIKELY DURING THE NEXT 12 TO 24 HOURS...AND BILL COULD REGAIN CATEGORY FOUR STRENGTH TONIGHT OR FRIDAY. BILL IS A LARGE HURRICANE AND ITS HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 115 MILES...185 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 260 MILES...415 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 948 MB...27.99 INCHES. LARGE SWELLS GENERATED BY THIS HURRICANE ARE AFFECTING THE NORTHERN LEEWARD ISLANDS...PUERTO RICO AND HISPANIOLA...AND SHOULD BEGIN AFFECTING THE BAHAMAS...BERMUDA...MOST OF THE U.S. EAST COAST...AND THE ATLANTIC MARITIMES OF CANADA DURING THE NEXT FEW DAYS. THESE SWELLS WILL LIKELY CAUSE EXTREMELY DANGEROUS SURF AND LIFE-THREATENING RIP CURRENTS. PLEASE CONSULT STATEMENTS ISSUED BY YOUR LOCAL WEATHER OFFICE FOR MORE DETAILS. ...SUMMARY OF 800 PM AST INFORMATION... LOCATION...24.4N 63.9W MAXIMUM SUSTAINED WINDS...125 MPH PRESENT MOVEMENT...NORTHWEST OR 305 DEGREES AT 18 MPH MINIMUM CENTRAL PRESSURE...948 MB THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 PM AST. $$ FORECASTER BROWN/PASCH |