Hurricane Helene

Forecast Advisory 36

---

178
WTNT23 KNHC 210843
TCMAT3
HURRICANE HELENE FORECAST/ADVISORY NUMBER 36
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL082006
0900 UTC THU SEP 21 2006

HURRICANE CENTER LOCATED NEAR 28.4N 56.8W AT 21/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTH OR 10 DEGREES AT 11 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 964 MB
EYE DIAMETER 15 NM
MAX SUSTAINED WINDS 80 KT WITH GUSTS TO 100 KT.
64 KT....... 40NE 40SE 30SW 30NW.
50 KT....... 70NE 70SE 60SW 60NW.
34 KT.......175NE 175SE 150SW 150NW.
12 FT SEAS..400NE 300SE 250SW 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 28.4N 56.8W AT 21/0900Z
AT 21/0600Z CENTER WAS LOCATED NEAR 27.8N 56.9W

FORECAST VALID 21/1800Z 30.1N 56.5W
MAX WIND 85 KT...GUSTS 105 KT.
64 KT... 40NE 40SE 30SW 30NW.
50 KT... 70NE 70SE 60SW 60NW.
34 KT...175NE 175SE 150SW 150NW.

FORECAST VALID 22/0600Z 32.8N 55.3W
MAX WIND 90 KT...GUSTS 110 KT.
64 KT... 40NE 40SE 30SW 30NW.
50 KT... 80NE 80SE 70SW 70NW.
34 KT...200NE 175SE 175SW 175NW.

FORECAST VALID 22/1800Z 35.6N 52.7W
MAX WIND 85 KT...GUSTS 105 KT.
64 KT... 40NE 40SE 30SW 30NW.
50 KT... 90NE 90SE 80SW 80NW.
34 KT...200NE 200SE 200SW 200NW.

FORECAST VALID 23/0600Z 38.5N 48.7W...BECOMING EXTRATROPICAL
MAX WIND 75 KT...GUSTS 90 KT.
50 KT...100NE 120SE 120SW 120NW.
34 KT...200NE 240SE 240SW 240NW.

FORECAST VALID 24/0600Z 43.9N 39.1W...EXTRATROPICAL
MAX WIND 65 KT...GUSTS 80 KT.
50 KT...120NE 150SE 150SW 150NW.
34 KT...240NE 275SE 300SW 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 25/0600Z 48.0N 30.0W...EXTRATROPICAL
MAX WIND 60 KT...GUSTS 75 KT.

OUTLOOK VALID 26/0600Z 53.0N 22.0W...EXTRATROPICAL
MAX WIND 55 KT...GUSTS 65 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.4N 56.8W

NEXT ADVISORY AT 21/1500Z

$$
FORECASTER STEWART