Hurricane Helene

Public Advisory 17

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588
WTNT32 KNHC 161437
TCPAT2
BULLETIN
HURRICANE GORDON ADVISORY NUMBER 23
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072006
1100 AM AST SAT SEP 16 2006

...GORDON NEARLY STATIONARY AND STILL A HURRICANE...

AT 1100 AM AST...1500Z...THE CENTER OF HURRICANE GORDON WAS LOCATED
NEAR LATITUDE 31.3 NORTH...LONGITUDE 53.7 WEST OR ABOUT 655 MILES...
1055 KM...EAST OF BERMUDA.

GORDON IS NEARLY STATIONARY...BUT A SLOW NORTH TO NORTH-NORTHEAST
MOTION COULD BEGIN AT ANY TIME AND THEN CONTINUE FOR THE NEXT 24
HOURS.

MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. SOME SLOW WEAKENING 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 105
MILES...165 KM.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB...29.15 INCHES.

REPEATING THE 1100 AM AST POSITION...31.3 N...53.7 W. MOVEMENT...
STATIONARY. MAXIMUM SUSTAINED WINDS...75 MPH. MINIMUM CENTRAL
PRESSURE...987 MB.

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
500 PM AST.

$$
FORECASTER MAINELLI/BEVEN




196
WTNT33 KNHC 161453
TCPAT3
BULLETIN
HURRICANE HELENE ADVISORY NUMBER 17
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006
1100 AM AST SAT SEP 16 2006

...HELENE BECOMES THE FOURTH HURRICANE OF THE ATLANTIC SEASON...

AT 1100 AM AST...1500Z...THE CENTER OF HURRICANE HELENE WAS LOCATED
NEAR LATITUDE 18.8 NORTH...LONGITUDE 45.6 WEST OR ABOUT 1145 MILES
...1845 KM...EAST OF THE NORTHERN LEEWARD ISLANDS.

HELENE IS MOVING TOWARD THE NORTHWEST NEAR 14 MPH...22 KM/HR...AND
THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS.

MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. HELENE IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE SCALE. SOME STRENGTHENING IS FORECAST DURING THE NEXT 24
HOURS.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB...29.15 INCHES.

REPEATING THE 1100 AM AST POSITION...18.8 N...45.6 W. MOVEMENT
TOWARD...NORTHWEST NEAR 14 MPH. MAXIMUM SUSTAINED WINDS...75 MPH.
MINIMUM CENTRAL PRESSURE...987 MB.

THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
500 PM AST.

$$
FORECASTER BEVEN/LANDSEA