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HURRICANE HELENE FORECAST/ADVISORY NUMBER 22
NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018
2100 UTC WED SEP 12 2018
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
INTERESTS IN THE AZORES SHOULD MONITOR THE PROGRESS OF HELENE.
HURRICANE CENTER LOCATED NEAR 21.4N 36.7W AT 12/2100Z
POSITION ACCURATE WITHIN 15 NM
PRESENT MOVEMENT TOWARD THE NORTH OR 350 DEGREES AT 12 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 980 MB
MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT.
64 KT....... 40NE 30SE 30SW 40NW.
50 KT....... 70NE 60SE 60SW 90NW.
34 KT.......150NE 100SE 100SW 120NW.
12 FT SEAS..210NE 240SE 270SW 270NW.
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 21.4N 36.7W AT 12/2100Z
AT 12/1800Z CENTER WAS LOCATED NEAR 20.8N 36.6W
FORECAST VALID 13/0600Z 23.1N 37.1W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 40NE 30SE 10SW 40NW.
50 KT... 70NE 60SE 60SW 80NW.
34 KT...150NE 110SE 90SW 120NW.
FORECAST VALID 13/1800Z 26.0N 37.2W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 70NE 60SE 60SW 80NW.
34 KT...150NE 100SE 100SW 120NW.
FORECAST VALID 14/0600Z 29.0N 36.5W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 60NE 60SE 50SW 60NW.
34 KT...140NE 120SE 80SW 100NW.
FORECAST VALID 14/1800Z 32.5N 35.5W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 60NE 50SE 30SW 30NW.
34 KT...130NE 120SE 70SW 90NW.
FORECAST VALID 15/1800Z 39.0N 32.0W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 20NE 30SE 20SW 10NW.
34 KT...100NE 130SE 80SW 50NW.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
OUTLOOK VALID 16/1800Z 43.0N 24.0W
MAX WIND 45 KT...GUSTS 55 KT.
OUTLOOK VALID 17/1800Z 47.5N 14.5W...POST-TROP/EXTRATROP
MAX WIND 40 KT...GUSTS 50 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.4N 36.7W
NEXT ADVISORY AT 13/0300Z
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FORECASTER AVILA
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