Hurricane HELENE

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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
 
 
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