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Hurricane HELENE


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HURRICANE HELENE FORECAST/ADVISORY NUMBER  18
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL082006
2100 UTC SAT SEP 16 2006
 
HURRICANE CENTER LOCATED NEAR 19.3N  46.3W AT 16/2100Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT  11 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  987 MB
EYE DIAMETER  45 NM
MAX SUSTAINED WINDS  65 KT WITH GUSTS TO  80 KT.
64 KT....... 25NE   0SE   0SW   0NW.
50 KT....... 40NE  40SE  25SW  40NW.
34 KT.......150NE 150SE 100SW 125NW.
12 FT SEAS..200NE 180SE 180SW 225NW.
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 19.3N  46.3W AT 16/2100Z
AT 16/1800Z CENTER WAS LOCATED NEAR 19.1N  45.9W
 
FORECAST VALID 17/0600Z 20.0N  47.4W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 30NE  20SE   0SW  20NW.
50 KT... 50NE  50SE  35SW  50NW.
34 KT...150NE 150SE 100SW 125NW.
 
FORECAST VALID 17/1800Z 20.9N  48.7W
MAX WIND  80 KT...GUSTS 100 KT.
64 KT... 30NE  20SE   0SW  20NW.
50 KT... 50NE  50SE  35SW  50NW.
34 KT...150NE 150SE 100SW 125NW.
 
FORECAST VALID 18/0600Z 21.8N  49.8W
MAX WIND  85 KT...GUSTS 105 KT.
64 KT... 35NE  25SE  20SW  25NW.
50 KT... 60NE  50SE  35SW  50NW.
34 KT...175NE 150SE 100SW 150NW.
 
FORECAST VALID 18/1800Z 22.6N  51.0W
MAX WIND  85 KT...GUSTS 105 KT.
50 KT... 60NE  50SE  35SW  50NW.
34 KT...175NE 150SE 100SW 150NW.
 
FORECAST VALID 19/1800Z 24.0N  53.5W
MAX WIND  85 KT...GUSTS 105 KT.
50 KT... 70NE  60SE  35SW  50NW.
34 KT...200NE 175SE 125SW 150NW.
 
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 20/1800Z 26.0N  56.0W
MAX WIND  80 KT...GUSTS 100 KT.
 
OUTLOOK VALID 21/1800Z 29.0N  57.5W
MAX WIND  75 KT...GUSTS  90 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.3N  46.3W
 
NEXT ADVISORY AT 17/0300Z
 
$$
FORECASTER BEVEN/LANDSEA
 
 
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