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| #111423 (Received by flhurricane at: 4:31 PM 17.Sep.2006) TCPAT3 BULLETIN HURRICANE HELENE ADVISORY NUMBER 22 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006 500 PM AST SUN SEP 17 2006 ...NOAA PLANE CONFIRMS THAT HELENE IS A STRONG CATEGORY TWO HURRICANE... AT 500 PM AST...2100Z...THE CENTER OF HURRICANE HELENE WAS LOCATED NEAR LATITUDE 21.2 NORTH...LONGITUDE 49.3 WEST OR ABOUT 920 MILES... 1480 KM...EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS. HELENE IS MOVING TOWARD THE NORTHWEST NEAR 9 MPH...15 KM/HR. A GRADUAL TURN TO THE WEST-NORTHWEST IS EXPECTED ON MONDAY. DATA FROM A NOAA PLANE INDICATE THAT MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH...165 KM/HR...WITH HIGHER GUSTS. SOME STRENGTHENING IS POSSIBLE DURING THE NEXT 24 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 40 MILES...65 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. MINIMUM CENTRAL PRESSURE RECENTLY MEASURED BY A NOAA RECONNAISSANCE PLANE WAS 970 MB...28.64 INCHES. REPEATING THE 500 PM AST POSITION...21.2 N...49.3 W. MOVEMENT TOWARD...NORTHWEST NEAR 9 MPH. MAXIMUM SUSTAINED WINDS...105 MPH. MINIMUM CENTRAL PRESSURE...970 MB. THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 1100 PM AST. $$ |
