Tropical Storm ISAAC

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TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER   8
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
0300 UTC THU AUG 23 2012
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
THE GOVERNMENT OF FRANCE HAS DISCONTINUED THE TROPICAL STORM WARNING
FOR MARTINIQUE...GUADELOUPE AND THE SURROUNDING ISLANDS...AND ST.
MARTIN.
 
THE HURRICANE WATCH FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS HAS
BEEN DISCONTINUED.
 
THE GOVERNMENT OF ANTIGUA AND BARBUDA HAS DISCONTINUED THE HURRICANE
WATCH FOR THE BRITISH VIRGIN ISLANDS.
 
A HURRICANE WARNING HAS BEEN ISSUED FOR HAITI.
 
THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS CHANGED THE TROPICAL
STORM WATCH TO A TROPICAL STORM WARNING FOR THE NORTH COAST OF THE
DOMINICAN REPUBLIC FROM THE HAITI-DOMINICAN REPUBLIC NORTHERN
BORDER EASTWARD TO NORTH OF ISLA SAONA.
 
THE GOVERNMENT OF THE BAHAMAS HAS ISSUED A TROPICAL STORM WATCH FOR
THE SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED
ISLAND...LONG CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED
ISLANDS...AS WELL AS FOR THE TURKS AND CAICOS ISLANDS.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* SOUTH COAST OF DOMINICAN REPUBLIC FROM ISLA SAONA WESTWARD TO THE
HAITI-DOMINICAN REPUBLIC SOUTHERN BORDER
* HAITI
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DOMINICA
* 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
* NORTH COAST OF DOMINICAN REPUBLIC FROM THE HAITI-DOMINICAN
REPUBLIC NORTHERN BORDER EASTWARD TO NORTH OF ISLA SAONA
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED
ISLAND...LONG CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED
ISLANDS AND THE TURKS AND CAICOS ISLANDS
 
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 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 CUBA...JAMAICA...AND ELSEWHERE IN THE BAHAMAS SHOULD
MONITOR THE PROGRESS OF ISAAC.
 
TROPICAL STORM CENTER LOCATED NEAR 15.8N  63.0W AT 23/0300Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT  17 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB
MAX SUSTAINED WINDS  40 KT WITH GUSTS TO  50 KT.
34 KT.......120NE   0SE   0SW  90NW.
12 FT SEAS..360NE  60SE   0SW 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 15.8N  63.0W AT 23/0300Z
AT 23/0000Z CENTER WAS LOCATED NEAR 15.8N  62.2W
 
FORECAST VALID 23/1200Z 16.2N  65.4W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...120NE  30SE   0SW  90NW.
 
FORECAST VALID 24/0000Z 16.9N  68.1W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 25NE   0SE   0SW  25NW.
34 KT...130NE  50SE  30SW 100NW.
 
FORECAST VALID 24/1200Z 17.5N  70.5W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 25NE   0SE   0SW  25NW.
50 KT... 40NE  20SE   0SW  40NW.
34 KT...140NE  60SE  40SW 120NW.
 
FORECAST VALID 25/0000Z 18.6N  72.7W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  20SE   0SW  40NW.
34 KT...140NE  60SE  40SW 120NW.
 
FORECAST VALID 26/0000Z 21.5N  77.0W...ON NORTH COAST OF CUBA
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 40NE  20SE   0SW  40NW.
34 KT...140NE  60SE  40SW 120NW.
 
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 27/0000Z 24.0N  80.5W
MAX WIND  65 KT...GUSTS  80 KT.
 
OUTLOOK VALID 28/0000Z 27.0N  83.5W
MAX WIND  70 KT...GUSTS  85 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.8N  63.0W
 
NEXT ADVISORY AT 23/0900Z
 
$$
FORECASTER PASCH
 
 
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