Hurricane Isaac
Forecast Advisory 5
845
WTNT24 KNHC 220852
TCMAT4
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 5
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
0900 UTC WED AUG 22 2012
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS ISSUED A HURRICANE
WATCH FOR THE SOUTH COAST OF DOMINICAN REPUBLIC FROM ISLA SAONA
WESTWARD TO THE HAITI-DOMINICAN REPUBLIC SOUTHERN BORDER.
THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS ISSUED A TROPICAL
STORM WATCH FOR THE NORTH COAST OF DOMINICAN REPUBLIC FROM THE
HAITI-DOMINICAN REPUBLIC NORTHERN BORDER EASTWARD TO NORTH OF
ISLA SAONA.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* MARTINIQUE
* DOMINICA
* GUADELOUPE AND THE SURROUNDING ISLANDS...AND ST. MARTIN
* ST. KITTS...NEVIS...ANTIGUA...BARBUDA...MONTSERRAT...AND ANGUILLA
* SABA...ST. EUSTATIUS...AND ST. MAARTEN
* BRITISH VIRGIN ISLANDS
* PUERTO RICO...VIEQUES...CULEBRA...AND THE U.S. VIRGIN ISLANDS
A HURRICANE WATCH IS IN EFFECT FOR...
* PUERTO RICO...VIEQUES...CULEBRA...AND THE U.S. VIRGIN ISLANDS
* SOUTH COAST OF DOMINICAN REPUBLIC FROM ISLA SAONA WESTWARD TO THE
HAITI-DOMINICAN REPUBLIC SOUTHERN BORDER
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* NORTH COAST OF DOMINICAN REPUBLIC FROM THE HAITI-DOMINICAN
REPUBLIC NORTHERN BORDER EASTWARD TO NORTH OF ISLA SAONA
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 WITHIN 36 HOURS.
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
INTERESTS IN HAITI AND CUBA SHOULD MONITOR THE PROGRESS OF
ISAAC.
TROPICAL STORM CENTER LOCATED NEAR 15.5N 57.3W AT 22/0900Z
POSITION ACCURATE WITHIN 20 NM
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 16 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB
MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT.
34 KT....... 40NE 30SE 0SW 0NW.
12 FT SEAS..120NE 30SE 0SW 30NW.
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 15.5N 57.3W AT 22/0900Z
AT 22/0600Z CENTER WAS LOCATED NEAR 15.5N 56.5W
FORECAST VALID 22/1800Z 15.9N 59.7W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT... 50NE 30SE 20SW 50NW.
FORECAST VALID 23/0600Z 16.3N 62.8W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 20NE 0SE 0SW 20NW.
34 KT... 60NE 40SE 30SW 60NW.
FORECAST VALID 23/1800Z 16.8N 65.7W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 15NE 10SE 0SW 15NW.
50 KT... 30NE 20SE 0SW 30NW.
34 KT... 70NE 50SE 40SW 70NW.
FORECAST VALID 24/0600Z 17.3N 68.4W
MAX WIND 75 KT...GUSTS 90 KT.
50 KT... 40NE 30SE 20SW 40NW.
34 KT... 90NE 60SE 40SW 90NW.
FORECAST VALID 25/0600Z 18.8N 73.2W...OVER WATER
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 40NE 30SE 20SW 40NW.
34 KT...110NE 70SE 50SW 100NW.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 175 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
OUTLOOK VALID 26/0600Z 21.8N 77.1W...OVER WATER
MAX WIND 65 KT...GUSTS 80 KT.
OUTLOOK VALID 27/0600Z 24.8N 80.0W
MAX WIND 80 KT...GUSTS 100 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.5N 57.3W
NEXT ADVISORY AT 22/1500Z
$$
FORECASTER STEWART
