Hurricane Irma

Forecast Advisory 9

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580
WTNT21 KNHC 011449
TCMAT1

HURRICANE IRMA FORECAST/ADVISORY NUMBER 9
NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017
1500 UTC FRI SEP 01 2017

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

HURRICANE CENTER LOCATED NEAR 18.5N 37.8W AT 01/1500Z
POSITION ACCURATE WITHIN 10 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 11 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 972 MB
EYE DIAMETER 10 NM
MAX SUSTAINED WINDS 95 KT WITH GUSTS TO 115 KT.
64 KT....... 15NE 10SE 10SW 10NW.
50 KT....... 40NE 30SE 20SW 30NW.
34 KT....... 80NE 60SE 40SW 60NW.
12 FT SEAS..210NE 45SE 120SW 210NW.
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 18.5N 37.8W AT 01/1500Z
AT 01/1200Z CENTER WAS LOCATED NEAR 18.3N 37.2W

FORECAST VALID 02/0000Z 18.7N 39.5W
MAX WIND 90 KT...GUSTS 110 KT.
64 KT... 20NE 15SE 10SW 15NW.
50 KT... 40NE 30SE 20SW 30NW.
34 KT... 90NE 60SE 40SW 70NW.

FORECAST VALID 02/1200Z 18.5N 41.8W
MAX WIND 90 KT...GUSTS 110 KT.
64 KT... 25NE 20SE 15SW 20NW.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...100NE 70SE 50SW 80NW.

FORECAST VALID 03/0000Z 18.0N 44.2W
MAX WIND 95 KT...GUSTS 115 KT.
64 KT... 30NE 20SE 15SW 20NW.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...110NE 80SE 60SW 100NW.

FORECAST VALID 03/1200Z 17.3N 46.6W
MAX WIND 100 KT...GUSTS 120 KT.
50 KT... 60NE 40SE 40SW 50NW.
34 KT...120NE 90SE 70SW 110NW.

FORECAST VALID 04/1200Z 16.2N 51.0W
MAX WIND 105 KT...GUSTS 130 KT.
50 KT... 70NE 50SE 40SW 60NW.
34 KT...140NE 110SE 90SW 130NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 05/1200Z 16.7N 55.2W
MAX WIND 110 KT...GUSTS 135 KT.

OUTLOOK VALID 06/1200Z 18.0N 59.5W
MAX WIND 110 KT...GUSTS 135 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.5N 37.8W

NEXT ADVISORY AT 01/2100Z

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FORECASTER BLAKE