Hurricane Helene

Forecast Advisory 46

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873
WTNT23 KNHC 231435
TCMAT3
HURRICANE HELENE FORECAST/ADVISORY NUMBER 46
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006
1500 UTC SAT SEP 23 2006

HURRICANE CENTER LOCATED NEAR 37.7N 46.4W AT 23/1500Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR 65 DEGREES AT 19 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB
MAX SUSTAINED WINDS 80 KT WITH GUSTS TO 100 KT.
64 KT....... 0NE 115SE 115SW 90NW.
50 KT....... 75NE 150SE 150SW 175NW.
34 KT.......225NE 225SE 300SW 300NW.
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 37.7N 46.4W AT 23/1500Z
AT 23/1200Z CENTER WAS LOCATED NEAR 37.3N 47.5W

FORECAST VALID 24/0000Z 38.9N 43.0W...EXTRATROPICAL
MAX WIND 80 KT...GUSTS 100 KT.
64 KT... 0NE 115SE 115SW 90NW.
50 KT... 75NE 150SE 150SW 175NW.
34 KT...225NE 225SE 300SW 300NW.

FORECAST VALID 24/1200Z 40.7N 38.5W...EXTRATROPICAL
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 90NE 120SE 120SW 90NW.
50 KT...120NE 175SE 175SW 175NW.
34 KT...240NE 270SE 270SW 300NW.

FORECAST VALID 25/0000Z 42.5N 34.2W...EXTRATROPICAL
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 90NE 120SE 120SW 90NW.
50 KT...120NE 175SE 175SW 175NW.
34 KT...240NE 270SE 270SW 300NW.

FORECAST VALID 25/1200Z 44.1N 30.7W...EXTRATROPICAL
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 90NE 120SE 120SW 120NW.
34 KT...360NE 360SE 300SW 240NW.

FORECAST VALID 26/1200Z 47.0N 23.0W...EXTRATROPICAL
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 90NE 120SE 120SW 120NW.
34 KT...360NE 360SE 300SW 240NW.

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 27/1200Z 49.0N 18.0W...EXTRATROPICAL
MAX WIND 45 KT...GUSTS 55 KT.

OUTLOOK VALID 28/1200Z 50.5N 13.0W...EXTRATROPICAL
MAX WIND 40 KT...GUSTS 50 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 37.7N 46.4W

NEXT ADVISORY AT 23/2100Z

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FORECASTER RHOME/KNABB