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HURRICANE IRMA FORECAST/ADVISORY NUMBER  30
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL112017
1500 UTC WED SEP 06 2017

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

A HURRICANE WARNING HAS BEEN ISSUED FOR THE NORTH COAST OF HAITI
FROM THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC TO LE
MOLE ST. NICHOLAS.  A TROPICAL STORM WARNING HAS BEEN ISSUED FOR
FOR THE COAST OF HAITI FROM SOUTH OF LE MOLE ST. NICHOLAS TO
PORT-AU-PRINCE.

THE GOVERNMENT OF FRANCE HAS DISCONTINUED ALL WARNINGS FOR
GUADELOUPE.

THE GOVERNMENT OF ANTIGUA HAS DISCONTINUED ALL WARNINGS FOR
ANTIGUA...BARBUDA...ST. KITTS...NEVIS...AND MONTSERRAT.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* ANGUILLA
* SABA...ST. EUSTATIUS...AND SINT MAARTEN
* SAINT MARTIN AND SAINT BARTHELEMY
* BRITISH VIRGIN ISLANDS
* U.S. VIRGIN ISLANDS
* PUERTO RICO...VIEQUES...AND CULEBRA
* DOMINICAN REPUBLIC FROM CABO ENGANO TO THE NORTHERN BORDER WITH
HAITI
* HAITI FROM THE NORTHERN BORDER WITH THE DOMINICAN REPUBLIC TO LE
MOLE ST. NICHOLAS
* SOUTHEASTERN BAHAMAS AND THE TURKS AND CAICOS ISLANDS

A HURRICANE WATCH IS IN EFFECT FOR...
* CUBA FROM MATANZAS PROVINCE EASTWARD TO GUANTANAMO PROVINCE
* CENTRAL BAHAMAS

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DOMINICAN REPUBLIC FROM SOUTH OF CABO ENGANO WESTWARD TO THE
SOUTHERN BORDER WITH HAITI
* HAITI FROM SOUTH OF LE MOLE ST. NICHOLAS TO PORT-AU-PRINCE

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA.  PREPARATIONS TO PROTECT LIFE AND
PROPERTY SHOULD BE RUSHED TO COMPLETION.

A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA.  A WATCH IS TYPICALLY ISSUED 48 HOURS
BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE
WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
DANGEROUS.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.

INTERESTS ELSEWHERE IN THE DOMINICAN REPUBLIC AND HAITI... AS
WELL AS CUBA...THE NORTHWESTERN BAHAMAS...AND FLORIDA SHOULD
MONITOR THE PROGRESS OF IRMA.

HURRICANE CENTER LOCATED NEAR 18.2N  64.0W AT 06/1500Z
POSITION ACCURATE WITHIN  10 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT  14 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  918 MB
EYE DIAMETER  25 NM
MAX SUSTAINED WINDS 160 KT WITH GUSTS TO 195 KT.
64 KT....... 45NE  45SE  30SW  45NW.
50 KT....... 80NE  60SE  50SW  70NW.
34 KT.......160NE 110SE  90SW 150NW.
12 FT SEAS..420NE  90SE  60SW 240NW.
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 18.2N  64.0W AT 06/1500Z
AT 06/1200Z CENTER WAS LOCATED NEAR 18.1N  63.3W

FORECAST VALID 07/0000Z 19.0N  66.2W
MAX WIND 155 KT...GUSTS 190 KT.
64 KT... 50NE  45SE  35SW  50NW.
50 KT... 90NE  70SE  50SW  80NW.
34 KT...160NE 120SE 100SW 150NW.

FORECAST VALID 07/1200Z 20.2N  69.0W
MAX WIND 150 KT...GUSTS 185 KT.
64 KT... 50NE  45SE  35SW  50NW.
50 KT... 90NE  70SE  50SW  80NW.
34 KT...180NE 130SE 100SW 160NW.

FORECAST VALID 08/0000Z 21.2N  71.7W
MAX WIND 145 KT...GUSTS 175 KT.
64 KT... 50NE  50SE  40SW  50NW.
50 KT... 90NE  80SE  60SW  80NW.
34 KT...180NE 150SE 100SW 160NW.

FORECAST VALID 08/1200Z 21.9N  74.2W
MAX WIND 140 KT...GUSTS 170 KT.
50 KT... 90NE  80SE  60SW  80NW.
34 KT...180NE 150SE 100SW 160NW.

FORECAST VALID 09/1200Z 22.9N  78.1W
MAX WIND 135 KT...GUSTS 165 KT.
50 KT... 90NE  80SE  60SW  80NW.
34 KT...180NE 160SE 110SW 160NW.

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 10/1200Z 25.2N  80.0W
MAX WIND 125 KT...GUSTS 150 KT.

OUTLOOK VALID 11/1200Z 29.0N  80.5W
MAX WIND 110 KT...GUSTS 135 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.2N  64.0W

NEXT ADVISORY AT 06/2100Z

$$
FORECASTER BROWN


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