Hurricane Irma

Forecast Advisory 5

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250
WTNT21 KNHC 311448
TCMAT1

HURRICANE IRMA FORECAST/ADVISORY NUMBER 5
NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017
1500 UTC THU AUG 31 2017

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

HURRICANE CENTER LOCATED NEAR 16.9N 33.8W AT 31/1500Z
POSITION ACCURATE WITHIN 10 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 979 MB
EYE DIAMETER 10 NM
MAX SUSTAINED WINDS 85 KT WITH GUSTS TO 105 KT.
64 KT....... 15NE 10SE 10SW 10NW.
50 KT....... 30NE 20SE 20SW 30NW.
34 KT....... 70NE 50SE 40SW 60NW.
12 FT SEAS.. 90NE 60SE 30SW 60NW.
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 16.9N 33.8W AT 31/1500Z
AT 31/1200Z CENTER WAS LOCATED NEAR 16.7N 33.4W

FORECAST VALID 01/0000Z 17.5N 35.2W
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 20NE 10SE 10SW 15NW.
50 KT... 40NE 30SE 20SW 30NW.
34 KT... 80NE 60SE 50SW 70NW.

FORECAST VALID 01/1200Z 18.0N 37.1W
MAX WIND 105 KT...GUSTS 130 KT.
64 KT... 25NE 20SE 15SW 20NW.
50 KT... 40NE 40SE 30SW 40NW.
34 KT... 90NE 70SE 60SW 80NW.

FORECAST VALID 02/0000Z 18.2N 39.2W
MAX WIND 105 KT...GUSTS 130 KT.
64 KT... 30NE 20SE 15SW 20NW.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...100NE 70SE 60SW 90NW.

FORECAST VALID 02/1200Z 18.1N 41.6W
MAX WIND 105 KT...GUSTS 130 KT.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...100NE 70SE 60SW 100NW.

FORECAST VALID 03/1200Z 17.0N 46.5W
MAX WIND 110 KT...GUSTS 135 KT.
50 KT... 60NE 40SE 40SW 50NW.
34 KT...120NE 80SE 70SW 110NW.

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 04/1200Z 16.0N 51.0W
MAX WIND 110 KT...GUSTS 135 KT.

OUTLOOK VALID 05/1200Z 16.0N 55.5W
MAX WIND 115 KT...GUSTS 140 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.9N 33.8W

NEXT ADVISORY AT 31/2100Z

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FORECASTER BLAKE