Hurricane Isaac
Forecast Advisory 13
218
WTNT25 KNHC 240844
TCMAT5
TROPICAL DEPRESSION JOYCE FORECAST/ADVISORY NUMBER 8
NWS NATIONAL HURRICANE CENTER MIAMI FL AL102012
0900 UTC FRI AUG 24 2012
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
TROPICAL DEPRESSION CENTER LOCATED NEAR 16.9N 45.0W AT 24/0900Z
POSITION ACCURATE WITHIN 15 NM
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 12 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
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 16.9N 45.0W AT 24/0900Z
AT 24/0600Z CENTER WAS LOCATED NEAR 16.6N 44.3W
FORECAST VALID 24/1800Z 17.8N 47.0W
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 25/0600Z 19.2N 50.6W
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 25/1800Z 21.0N 54.0W
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 26/0600Z 22.8N 57.5W
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 27/0600Z 27.0N 63.0W
MAX WIND 30 KT...GUSTS 40 KT.
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 28/0600Z 31.5N 64.0W
MAX WIND 30 KT...GUSTS 40 KT.
OUTLOOK VALID 29/0600Z 36.5N 56.0W
MAX WIND 30 KT...GUSTS 40 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.9N 45.0W
NEXT ADVISORY AT 24/1500Z
$$
FORECASTER LANDSEA
621
WTNT24 KNHC 240846
TCMAT4
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 13
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
0900 UTC FRI AUG 24 2012
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
NONE.
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 16.1N 70.0W AT 24/0900Z
POSITION ACCURATE WITHIN 40 NM
PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 13 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT.
34 KT.......160NE 90SE 60SW 120NW.
12 FT SEAS..490NE 90SE 0SW 490NW.
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 16.1N 70.0W AT 24/0900Z
AT 24/0600Z CENTER WAS LOCATED NEAR 16.2N 69.6W
FORECAST VALID 24/1800Z 17.0N 71.9W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 30NE 30SE 0SW 30NW.
34 KT...160NE 120SE 60SW 120NW.
FORECAST VALID 25/0600Z 18.8N 74.1W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...160NE 120SE 60SW 120NW.
FORECAST VALID 25/1800Z 20.6N 76.7W...INLAND
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...160NE 120SE 40SW 120NW.
FORECAST VALID 26/0600Z 22.4N 78.9W...OVER WATER
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...160NE 120SE 40SW 120NW.
FORECAST VALID 27/0600Z 25.0N 82.5W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 30NE 30SE 0SW 30NW.
34 KT...150NE 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 28/0600Z 28.0N 86.0W
MAX WIND 65 KT...GUSTS 80 KT.
OUTLOOK VALID 29/0600Z 30.5N 87.5W...INLAND
MAX WIND 75 KT...GUSTS 90 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.1N 70.0W
NEXT ADVISORY AT 24/1500Z
$$
FORECASTER BRENNAN
