Hurricane Isaac
Forecast Advisory 17
703
WTNT24 KNHC 250845
TCMAT4
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 17
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
0900 UTC SAT AUG 25 2012
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
A HURRICANE WARNING HAS BEEN ISSUED FOR THE FLORIDA KEYS INCLUDING
THE DRY TORTUGAS...THE WEST COAST OF FLORIDA FROM BONITA BEACH
SOUTHWARD...AND FLORIDA BAY.
A HURRICANE WATCH HAS BEEN ISSUED FOR THE FLORIDA EAST COAST FROM
GOLDEN BEACH SOUTHWARD.
THE GOVERNMENT OF THE BAHAMAS HAS ISSUED A HURRICANE WATCH FOR
ANDROS ISLAND.
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
* FLORIDA BAY
A HURRICANE WATCH IS IN EFFECT FOR...
* HAITI
* THE FLORIDA EAST COAST FROM GOLDEN BEACH SOUTHWARD
* ANDROS ISLAND IN THE BAHAMAS
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DOMINICAN REPUBLIC
* 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 JUPITER INLET SOUTHWARD
* LAKE OKEECHOBEE
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* CUBAN PROVINCES OF MATANZAS AND CIENFUEGOS
* JAMAICA
* THE FLORIDA EAST COAST NORTH OF JUPITER INLET TO SEBASTIAN INLET
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 AND THE REMAINDER OF THE FLORIDA
PENINSULA SHOULD MONITOR THE PROGRESS OF ISAAC.
TROPICAL STORM CENTER LOCATED NEAR 19.0N 73.3W AT 25/0900Z
POSITION ACCURATE WITHIN 30 NM
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT 12 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 992 MB
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.
50 KT....... 60NE 0SE 0SW 0NW.
34 KT.......200NE 90SE 75SW 200NW.
12 FT SEAS..420NE 240SE 60SW 450NW.
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 19.0N 73.3W AT 25/0900Z
AT 25/0600Z CENTER WAS LOCATED NEAR 18.1N 72.7W
FORECAST VALID 25/1800Z 20.4N 75.0W...INLAND
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 50NE 0SE 0SW 0NW.
34 KT...180NE 90SE 60SW 180NW.
FORECAST VALID 26/0600Z 22.2N 77.6W...OVER WATER
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 50NE 0SE 0SW 30NW.
34 KT...180NE 90SE 60SW 180NW.
FORECAST VALID 26/1800Z 23.8N 80.0W
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 27/0600Z 25.0N 81.8W
MAX WIND 70 KT...GUSTS 85 KT.
50 KT... 70NE 50SE 30SW 60NW.
34 KT...180NE 110SE 90SW 150NW.
FORECAST VALID 28/0600Z 27.7N 84.9W
MAX WIND 80 KT...GUSTS 100 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 29/0600Z 30.5N 86.0W...INLAND
MAX WIND 70 KT...GUSTS 85 KT.
OUTLOOK VALID 30/0600Z 32.5N 86.0W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.0N 73.3W
NEXT ADVISORY AT 25/1500Z
$$
FORECASTER BRENNAN
