| HOME | ARCHIVES | FORECASTS | IMAGERY | ABOUT NHC | RECONNAISSANCE |

---

Hurricane HELENE (Text)

ZCZC MIATCPAT3 ALL
TTAA00 KNHC DDHHMM
BULLETIN
HURRICANE HELENE ADVISORY NUMBER  21
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL082006
1100 AM AST SUN SEP 17 2006
 
...HELENE STRENGTHENS...FORECAST TO REMAIN OVER WATER...

AT 1100 AM AST...1500Z...THE CENTER OF HURRICANE HELENE WAS LOCATED
NEAR LATITUDE 20.5 NORTH...LONGITUDE 49.0 WEST OR ABOUT 935 MILES...
1500 KM...EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS.
 
HELENE IS MOVING TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/HR...AND
THIS MOTION IS EXPECTED TO CONTINUE TODAY WITH A GRADUAL TURN TO THE
WEST-NORTHWEST ON MONDAY.
 
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 105 MPH...165
KM/HR...WITH HIGHER GUSTS. HELENE IS A STRONG CATEGORY TWO
HURRICANE ON THE SAFFIR-SIMPSON HURRICANE SCALE.  SOME ADDITIONAL
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.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 970 MB...28.64 INCHES.
 
REPEATING THE 1100 AM AST POSITION...20.5 N...49.0 W.  MOVEMENT
TOWARD...NORTHWEST NEAR 10 MPH.  MAXIMUM SUSTAINED WINDS...105 MPH.
MINIMUM CENTRAL PRESSURE...970 MB.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
500 PM AST.
 
$$
FORECASTER AVILA
 
NNNN