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| #112191 (Received by flhurricane at: 4:52 AM 21.Sep.2006) TCPAT3 BULLETIN HURRICANE HELENE ADVISORY NUMBER 36 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006 500 AM AST THU SEP 21 2006 ...HELENE WEAKENS SLIGHTLY OVER THE CENTRAL ATLANTIC... AT 500 AM AST...0900Z...THE CENTER OF HURRICANE HELENE WAS LOCATED NEAR LATITUDE 28.4 NORTH...LONGITUDE 56.8 WEST OR ABOUT 550 MILES... 880 KM...EAST-SOUTHEAST OF BERMUDA. HELENE IS MOVING TOWARD THE NORTH NEAR 13 MPH...20 KM/HR. A GRADUAL TURN TOWARD THE NORTH-NORTHEAST OR NORTHEAST...WITH AN INCREASE IN FORWARD SPEED...IS EXPECTED DURING THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 90 MPH...150 KM/HR...WITH HIGHER GUSTS. SLIGHT STRENGTHENING IS POSSIBLE DURING THE NEXT 24 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 964 MB...28.47 INCHES. ALTHOUGH HELENE IS EXPECTED TO PASS SEVERAL HUNDRED MILES TO THE EAST OF BERMUDA...LARGE OCEAN SWELLS PRODUCING HAZARDOUS SURF CONDITIONS COULD AFFECT THE AREA LATER TODAY AND ON FRIDAY. REPEATING THE 500 AM AST POSITION...28.4 N...56.8 W. MOVEMENT TOWARD...NORTH NEAR 13 MPH. MAXIMUM SUSTAINED WINDS...90 MPH. MINIMUM CENTRAL PRESSURE...964 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 AM AST. $$ FORECASTER STEWART |
