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| #111324 (Received by flhurricane at: 4:55 AM 17.Sep.2006) TCPAT3 BULLETIN HURRICANE HELENE ADVISORY NUMBER 20 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006 500 AM AST SUN SEP 17 2006 ...HELENE STRENGTHENS A LITTLE.... AT 500 AM AST...0900Z...THE CENTER OF HURRICANE HELENE WAS LOCATED NEAR LATITUDE 20.0 NORTH...LONGITUDE 48.2 WEST OR ABOUT 980 MILES... 1580 KM...EAST OF THE NORTHERN LEEWARD ISLANDS. HELENE IS MOVING TOWARD THE NORTHWEST NEAR 9 MPH...15 KM/HR. A MOTION BETWEEN WEST-NORTHWEST AND NORTHWEST IS EXPECTED DURING THE NEXT 24 HOURS. MAXIMUM SUSTAINED WINDS ARE NEAR 85 MPH...140 KM/HR...WITH HIGHER GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...35 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 979 MB...28.91 INCHES. REPEATING THE 500 AM AST POSITION...20.0 N...48.2 W. MOVEMENT TOWARD...NORTHWEST NEAR 9 MPH. MAXIMUM SUSTAINED WINDS...85 MPH. MINIMUM CENTRAL PRESSURE...979 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 AM AST. $$ FORECASTER BROWN/KNABB |
