Tropical Storm ISAAC

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TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER  19
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
2100 UTC SAT AUG 25 2012
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
A TROPICAL STORM WATCH HAS BEEN ISSUED FOR THE FLORIDA WEST COAST
NORTH OF TARPON SPRINGS TO SUWANNEE RIVER.
 
THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS DISCONTINUED THE
TROPICAL STORM WARNING FOR THE DOMINICAN REPUBLIC.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* THE FLORIDA KEYS INCLUDING THE DRY TORTUGAS
* THE WEST COAST OF FLORIDA FROM BONITA BEACH SOUTHWARD TO OCEAN
REEF
* FLORIDA BAY
 
A HURRICANE WATCH IS IN EFFECT FOR...
* THE FLORIDA EAST COAST FROM GOLDEN BEACH SOUTHWARD TO OCEAN REEF
* ANDROS ISLAND IN THE BAHAMAS
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* HAITI
* CUBAN PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...VILLA
CLARA...CAMAGUEY...LAS TUNAS...GRANMA...HOLGUIN...SANTIAGO DE
CUBA...AND GUANTANAMO
* THE BAHAMAS
* TURKS AND CAICOS ISLANDS
* THE FLORIDA EAST COAST FROM SEBASTIAN INLET SOUTHWARD TO OCEAN
REEF
* LAKE OKEECHOBEE
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* CUBAN PROVINCES OF MATANZAS AND CIENFUEGOS
* THE FLORIDA EAST COAST NORTH OF SEBASTIAN INLET TO FLAGLER BEACH
* THE FLORIDA WEST COAST NORTH OF BONITA BEACH TO SUWANNEE RIVER
 
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...IN THIS CASE WITHIN THE NEXT 24 TO 36 HOURS.
 
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 THE REMAINDER OF CUBA...THE REMAINDER OF FLORIDA...AND
ELSEWHERE ALONG THE NORTHERN GULF COAST SHOULD MONITOR THE PROGRESS
OF ISAAC.
 
TROPICAL STORM CENTER LOCATED NEAR 21.3N  76.0W AT 25/2100Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT  18 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  997 MB
MAX SUSTAINED WINDS  50 KT WITH GUSTS TO  60 KT.
50 KT....... 60NE   0SE   0SW   0NW.
34 KT.......180NE  90SE   0SW 180NW.
12 FT SEAS..300NE 120SE   0SW 270NW.
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 21.3N  76.0W AT 25/2100Z
AT 25/1800Z CENTER WAS LOCATED NEAR 20.8N  75.3W
 
FORECAST VALID 26/0600Z 22.6N  78.0W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 60NE   0SE   0SW   0NW.
34 KT...180NE  90SE  60SW 180NW.
 
FORECAST VALID 26/1800Z 24.1N  80.6W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 60NE  30SE   0SW  30NW.
34 KT...180NE  90SE  60SW 180NW.
 
FORECAST VALID 27/0600Z 25.2N  82.7W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 30NE   0SE   0SW   0NW.
50 KT... 60NE  40SE  20SW  50NW.
34 KT...180NE 100SE  80SW 160NW.
 
FORECAST VALID 27/1800Z 26.5N  84.3W
MAX WIND  75 KT...GUSTS  90 KT.
50 KT... 70NE  50SE  30SW  60NW.
34 KT...180NE 110SE  90SW 150NW.
 
FORECAST VALID 28/1800Z 29.0N  86.0W
MAX WIND  85 KT...GUSTS 105 KT.
50 KT... 80NE  60SE  50SW  70NW.
34 KT...180NE 130SE 110SW 140NW.
 
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 29/1800Z 31.5N  86.0W...INLAND
MAX WIND  55 KT...GUSTS  65 KT.
 
OUTLOOK VALID 30/1800Z 33.5N  85.5W...INLAND
MAX WIND  25 KT...GUSTS  35 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.3N  76.0W
 
NEXT ADVISORY AT 26/0300Z
 
$$
FORECASTER BEVEN
 
 
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