Hurricane Isaac
Forecast Advisory 9
422
WTNT25 KNHC 230858
TCMAT5
TROPICAL DEPRESSION TEN FORECAST/ADVISORY NUMBER 4
NWS NATIONAL HURRICANE CENTER MIAMI FL AL102012
0900 UTC THU AUG 23 2012
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
TROPICAL DEPRESSION CENTER LOCATED NEAR 14.5N 40.6W AT 23/0900Z
POSITION ACCURATE WITHIN 40 NM
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 14 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
12 FT SEAS..120NE 0SE 0SW 60NW.
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 14.5N 40.6W AT 23/0900Z
AT 23/0600Z CENTER WAS LOCATED NEAR 14.2N 40.0W
FORECAST VALID 23/1800Z 15.2N 42.5W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.
FORECAST VALID 24/0600Z 16.2N 45.0W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 50NE 0SE 0SW 40NW.
FORECAST VALID 24/1800Z 17.4N 47.7W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 60NE 40SE 0SW 50NW.
FORECAST VALID 25/0600Z 18.8N 50.8W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 70NE 40SE 0SW 50NW.
FORECAST VALID 26/0600Z 22.0N 57.0W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 80NE 40SE 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 27/0600Z 27.0N 63.0W
MAX WIND 45 KT...GUSTS 55 KT.
OUTLOOK VALID 28/0600Z 31.0N 64.5W
MAX WIND 45 KT...GUSTS 55 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.5N 40.6W
NEXT ADVISORY AT 23/1500Z
$$
FORECASTER LANDSEA
423
WTNT24 KNHC 230858
TCMAT4
TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 9
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
0900 UTC THU AUG 23 2012
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
NONE.
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
* HAITI
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DOMINICA
* 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
* NORTH COAST OF DOMINICAN REPUBLIC FROM THE HAITI-DOMINICAN
REPUBLIC NORTHERN BORDER EASTWARD TO NORTH OF ISLA SAONA
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED
ISLAND...LONG CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED
ISLANDS AND THE TURKS AND CAICOS ISLANDS
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA. PREPARATIONS TO PROTECT LIFE
AND PROPERTY SHOULD BE RUSHED TO COMPLETION.
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...JAMAICA...AND ELSEWHERE IN THE BAHAMAS SHOULD
MONITOR THE PROGRESS OF ISAAC.
TROPICAL STORM CENTER LOCATED NEAR 15.3N 64.0W AT 23/0900Z
POSITION ACCURATE WITHIN 30 NM
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 10 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB
MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.
34 KT.......120NE 0SE 0SW 60NW.
12 FT SEAS..390NE 60SE 0SW 240NW.
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 15.3N 64.0W AT 23/0900Z
AT 23/0600Z CENTER WAS LOCATED NEAR 15.3N 63.5W
FORECAST VALID 23/1800Z 16.2N 65.9W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...120NE 30SE 0SW 90NW.
FORECAST VALID 24/0600Z 16.9N 68.4W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 25NE 0SE 0SW 25NW.
34 KT...130NE 50SE 30SW 100NW.
FORECAST VALID 24/1800Z 17.8N 71.1W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 0SE 0SW 20NW.
50 KT... 40NE 20SE 0SW 40NW.
34 KT...140NE 60SE 40SW 120NW.
FORECAST VALID 25/0600Z 19.1N 73.4W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 40NE 20SE 0SW 40NW.
34 KT...140NE 60SE 40SW 120NW.
FORECAST VALID 26/0600Z 21.8N 77.4W...INLAND
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 40NE 20SE 0SW 40NW.
34 KT...140NE 60SE 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 27/0600Z 24.4N 80.9W...OVER WATER
MAX WIND 65 KT...GUSTS 80 KT.
OUTLOOK VALID 28/0600Z 27.4N 83.7W
MAX WIND 70 KT...GUSTS 85 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.3N 64.0W
NEXT ADVISORY AT 23/1500Z
$$
FORECASTER STEWART
