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| #111476 (Received by flhurricane at: 10:40 PM 17.Sep.2006) TCPAT3 BULLETIN HURRICANE HELENE ADVISORY NUMBER 23 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006 1100 PM AST SUN SEP 17 2006 ...HELENE BECOMES THE SECOND MAJOR HURRICANE OF THE 2006 SEASON... AT 1100 PM AST...0300Z...THE EYE OF HURRICANE HELENE WAS LOCATED NEAR LATITUDE 21.6 NORTH...LONGITUDE 49.4 WEST OR ABOUT 920 MILES... 1480 KM...EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS. HELENE IS MOVING TOWARD THE NORTHWEST NEAR 8 MPH...13 KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE OVERNIGHT WITH A GRADUAL TURN TOWARD THE WEST-NORTHWEST ON MONDAY. MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 115 MPH...185 KM/HR...WITH HIGHER GUSTS. HELENE IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE SCALE. SOME FURTHER STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS. HELENE IS BECOMING A LARGE TROPICAL CYCLONE. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 50 MILES...85 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325 KM. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 962 MB...28.41 INCHES. REPEATING THE 1100 PM AST POSITION...21.6 N...49.4 W. MOVEMENT TOWARD...NORTHWEST NEAR 8 MPH. MAXIMUM SUSTAINED WINDS...115 MPH. MINIMUM CENTRAL PRESSURE...962 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 500 AM AST. $$ FORECASTER BLAKE/PASCH |
