Hurricane Helene

Forecast Advisory 41

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508
WTNT23 KNHC 221441
TCMAT3
HURRICANE HELENE FORECAST/ADVISORY NUMBER 41
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006
1500 UTC FRI SEP 22 2006

HURRICANE CENTER LOCATED NEAR 34.4N 54.2W AT 22/1500Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 18 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB
MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT.
64 KT....... 30NE 45SE 30SW 30NW.
50 KT....... 75NE 90SE 60SW 75NW.
34 KT.......200NE 200SE 200SW 200NW.
12 FT SEAS..400NE 300SE 350SW 400NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 34.4N 54.2W AT 22/1500Z
AT 22/1200Z CENTER WAS LOCATED NEAR 33.8N 55.0W

FORECAST VALID 23/0000Z 36.2N 51.6W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 45NE 45SE 45SW 45NW.
50 KT... 80NE 80SE 75SW 75NW.
34 KT...200NE 200SE 225SW 240NW.

FORECAST VALID 23/1200Z 37.9N 47.4W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 45NE 45SE 45SW 45NW.
50 KT... 90NE 90SE 90SW 90NW.
34 KT...200NE 200SE 240SW 275NW.

FORECAST VALID 24/0000Z 40.0N 42.8W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 30NE 30SE 50SW 50NW.
50 KT... 90NE 90SE 100SW 120NW.
34 KT...225NE 225SE 240SW 300NW.

FORECAST VALID 24/1200Z 42.4N 37.5W...EXTRATROPICAL
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 90NE 90SE 100SW 120NW.
34 KT...225NE 225SE 240SW 300NW.

FORECAST VALID 25/1200Z 47.5N 29.0W...EXTRATROPICAL
MAX WIND 65 KT...GUSTS 80 KT.
50 KT...100NE 125SE 125SW 100NW.
34 KT...225NE 300SE 360SW 275NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 225 NM
ON DAY 4 AND 300 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 26/1200Z 52.5N 20.0W...EXTRATROPICAL
MAX WIND 55 KT...GUSTS 65 KT.

OUTLOOK VALID 27/1200Z 56.5N 15.0W...EXTRATROPICAL
MAX WIND 50 KT...GUSTS 60 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 34.4N 54.2W

NEXT ADVISORY AT 22/2100Z

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FORECASTER RHOME/KNABB