Hurricane Isaac

Forecast Advisory 12



490
WTNT25 KNHC 240235
TCMAT5

TROPICAL DEPRESSION JOYCE FORECAST/ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL102012
0300 UTC FRI AUG 24 2012

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 16.3N 43.7W AT 24/0300Z
POSITION ACCURATE WITHIN 25 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT 12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
12 FT SEAS..150NE 0SE 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 16.3N 43.7W AT 24/0300Z
AT 24/0000Z CENTER WAS LOCATED NEAR 16.1N 43.1W

FORECAST VALID 24/1200Z 17.4N 46.0W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 25/0000Z 18.9N 48.9W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 25/1200Z 20.7N 52.2W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 26/0000Z 22.8N 55.5W
MAX WIND 30 KT...GUSTS 40 KT.

FORECAST VALID 27/0000Z 27.0N 62.0W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 60NE 0SE 0SW 60NW.

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 28/0000Z 31.5N 64.5W
MAX WIND 45 KT...GUSTS 55 KT.

OUTLOOK VALID 29/0000Z 36.0N 58.0W
MAX WIND 50 KT...GUSTS 60 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.3N 43.7W

NEXT ADVISORY AT 24/0900Z

$$
FORECASTER BLAKE




066
WTNT24 KNHC 240250
TCMAT4

TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 12
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
0300 UTC FRI AUG 24 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE HURRICANE WARNING FOR HAITI HAS BEEN CHANGED TO A TROPICAL STORM
WARNING AND A HURRICANE WATCH.

THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WARNING FOR THE
CUBAN PROVINCES OF CAMAGUEY...LAS TUNAS...GRANMA...HOLGUIN...
SANTIAGO DE CUBA...AND GUANTANAMO.

THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WATCH FOR THE
CUBAN PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...AND VILLA
CLARA.

THE TROPICAL STORM WARNINGS FOR PUERTO RICO...VIEQUES...CULEBRA...
AND THE U.S. VIRGIN ISLANDS HAVE BEEN DISCONTINUED.

THE GOVERNMENT OF ANTIGUA AND BARBUDA HAS DISCONTINUED THE TROPICAL
STORM WARNING FOR THE BRITISH VIRGIN ISLANDS.

THE GOVERNMENT OF THE BAHAMAS HAS ISSUED A TROPICAL STORM WATCH FOR
ANDROS ISLAND AND THE CENTRAL BAHAMAS INCLUDING CAT ISLAND...THE
EXUMAS...LONG ISLAND...RUM CAY...AND SAN SALVADOR.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WATCH IS IN EFFECT FOR...
* HAITI

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DOMINICAN REPUBLIC
* HAITI
* CUBAN PROVINCES OF CAMAGUEY...LAS TUNAS...GRANMA...HOLGUIN...
SANTIAGO DE CUBA...AND GUANTANAMO
* SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED ISLAND...LONG
CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS
* TURKS AND CAICOS ISLANDS

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* CUBAN PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...AND VILLA
CLARA
* ANDROS ISLAND AND THE CENTRAL BAHAMAS INCLUDING CAT ISLAND...THE
EXUMAS...LONG ISLAND...RUM CAY...AND SAN SALVADOR

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 JAMAICA...THE REMAINDER OF CUBA...THE REMAINDER OF THE
BAHAMAS...SOUTH FLORIDA...AND THE FLORIDA KEYS SHOULD MONITOR THE
PROGRESS OF ISAAC.

TROPICAL STORM CENTER LOCATED NEAR 16.7N 68.7W AT 24/0300Z
POSITION ACCURATE WITHIN 40 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 16 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB
MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT.
34 KT.......160NE 120SE 0SW 120NW.
12 FT SEAS..500NE 150SE 0SW 360NW.
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 16.7N 68.7W AT 24/0300Z
AT 24/0000Z CENTER WAS LOCATED NEAR 16.5N 68.0W

FORECAST VALID 24/1200Z 17.5N 70.7W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 30NE 30SE 0SW 30NW.
34 KT...160NE 120SE 30SW 120NW.

FORECAST VALID 25/0000Z 18.8N 73.1W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...160NE 120SE 40SW 120NW.

FORECAST VALID 25/1200Z 20.2N 75.4W...INLAND
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...160NE 120SE 40SW 120NW.

FORECAST VALID 26/0000Z 21.8N 77.7W...INLAND
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...160NE 120SE 40SW 120NW.

FORECAST VALID 27/0000Z 24.8N 82.0W...OVER WATER
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 30NE 30SE 0SW 30NW.
34 KT...160NE 120SE 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 28/0000Z 27.5N 85.5W
MAX WIND 70 KT...GUSTS 85 KT.

OUTLOOK VALID 29/0000Z 30.0N 88.0W
MAX WIND 80 KT...GUSTS 100 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.7N 68.7W

NEXT ADVISORY AT 24/0900Z

$$
FORECASTER PASCH