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Tropical Storm ISAAC


ZCZC MIATCMAT4 ALL
TTAA00 KNHC DDHHMM
 
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER   7
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
2100 UTC WED AUG 22 2012
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS ISSUED A HURRICANE
WARNING FOR THE SOUTH COAST FROM ISLA SAONA WESTWARD TO THE
HAITI-DOMINICAN REPUBLIC SOUTHERN BORDER
 
A HURRICANE WATCH HAS BEEN ISSUED FOR ALL OF HAITI.
 
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
 
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. AND BRITISH VIRGIN
ISLANDS
* HAITI
 
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 WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA.  A WARNING IS TYPICALLY ISSUED
36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF
TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE
PREPARATIONS DIFFICULT OR DANGEROUS. 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 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 AND JAMAICA SHOULD MONITOR THE PROGRESS OF ISAAC.
 
TROPICAL STORM CENTER LOCATED NEAR 16.0N  61.2W AT 22/2100Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  19 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB
MAX SUSTAINED WINDS  40 KT WITH GUSTS TO  50 KT.
34 KT....... 70NE   0SE   0SW  70NW.
12 FT SEAS..360NE  60SE   0SW 150NW.
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 16.0N  61.2W AT 22/2100Z
AT 22/1800Z CENTER WAS LOCATED NEAR 15.9N  60.4W
 
FORECAST VALID 23/0600Z 16.3N  63.6W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 70NE   0SE   0SW  70NW.
 
FORECAST VALID 23/1800Z 16.7N  66.7W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 25NE   0SE   0SW  25NW.
34 KT... 70NE  40SE  30SW  70NW.
 
FORECAST VALID 24/0600Z 17.2N  69.4W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 30NE  20SE   0SW  30NW.
34 KT... 70NE  50SE  40SW  70NW.
 
FORECAST VALID 24/1800Z 17.9N  71.6W...INLAND
MAX WIND  70 KT...GUSTS  85 KT.
50 KT... 40NE  30SE  20SW  40NW.
34 KT... 90NE  60SE  40SW  90NW.
 
FORECAST VALID 25/1800Z 20.5N  75.5W...INLAND
MAX WIND  60 KT...GUSTS  75 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 26/1800Z 23.5N  79.5W...OVER WATER
MAX WIND  60 KT...GUSTS  75 KT.
 
OUTLOOK VALID 27/1800Z 26.5N  82.5W
MAX WIND  70 KT...GUSTS  85 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.0N  61.2W
 
NEXT ADVISORY AT 23/0300Z
 
$$
FORECASTER BEVEN
 
 
NNNN


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Page last modified: Monday, 31-Dec-2012 12:09:23 UTC