Hurricane Helene

Forecast Advisory 39

---

665
WTNT23 KNHC 220239
TCMAT3
HURRICANE HELENE FORECAST/ADVISORY NUMBER 39
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006
0300 UTC FRI SEP 22 2006

HURRICANE CENTER LOCATED NEAR 31.8N 56.3W AT 22/0300Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 15 DEGREES AT 12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 970 MB
MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT.
64 KT....... 35NE 35SE 30SW 30NW.
50 KT....... 70NE 90SE 60SW 60NW.
34 KT.......180NE 200SE 200SW 175NW.
12 FT SEAS..400NE 300SE 350SW 350NW.
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 31.8N 56.3W AT 22/0300Z
AT 22/0000Z CENTER WAS LOCATED NEAR 31.0N 56.7W

FORECAST VALID 22/1200Z 33.6N 54.8W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 40NE 40SE 30SW 30NW.
50 KT... 80NE 80SE 60SW 60NW.
34 KT...200NE 200SE 175SW 175NW.

FORECAST VALID 23/0000Z 36.3N 51.2W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 40NE 40SE 30SW 30NW.
50 KT... 80NE 80SE 60SW 60NW.
34 KT...200NE 200SE 175SW 175NW.

FORECAST VALID 23/1200Z 38.9N 45.9W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 40NE 40SE 30SW 30NW.
50 KT... 90NE 90SE 60SW 60NW.
34 KT...225NE 225SE 200SW 200NW.

FORECAST VALID 24/0000Z 41.7N 40.0W...BECOMING EXTRATROPICAL
MAX WIND 65 KT...GUSTS 80 KT.
50 KT...100NE 100SE 100SW 100NW.
34 KT...225NE 225SE 225SW 200NW.

FORECAST VALID 25/0000Z 47.0N 30.0W...EXTRATROPICAL
MAX WIND 60 KT...GUSTS 75 KT.
50 KT...120NE 150SE 150SW 120NW.
34 KT...240NE 300SE 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 26/0000Z 51.5N 23.0W...EXTRATROPICAL
MAX WIND 60 KT...GUSTS 75 KT.

OUTLOOK VALID 27/0000Z 58.0N 17.0W...EXTRATROPICAL
MAX WIND 55 KT...GUSTS 65 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.8N 56.3W

NEXT ADVISORY AT 22/0900Z

$$
FORECASTER MAINELLI/BEVEN