000 WTNT24 KNHC 230256 TCMAT4 TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 8 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 0300 UTC THU AUG 23 2012 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF FRANCE HAS DISCONTINUED THE TROPICAL STORM WARNING FOR MARTINIQUE...GUADELOUPE AND THE SURROUNDING ISLANDS...AND ST. MARTIN. THE HURRICANE WATCH FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS HAS BEEN DISCONTINUED. THE GOVERNMENT OF ANTIGUA AND BARBUDA HAS DISCONTINUED THE HURRICANE WATCH FOR THE BRITISH VIRGIN ISLANDS. A HURRICANE WARNING HAS BEEN ISSUED FOR HAITI. THE GOVERNMENT OF THE DOMINICAN REPUBLIC HAS CHANGED THE TROPICAL STORM WATCH TO A TROPICAL STORM WARNING FOR THE NORTH COAST OF THE DOMINICAN REPUBLIC FROM THE HAITI-DOMINICAN REPUBLIC NORTHERN BORDER EASTWARD TO NORTH OF ISLA SAONA. THE GOVERNMENT OF THE BAHAMAS HAS ISSUED A TROPICAL STORM WATCH FOR THE SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED ISLAND...LONG CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS...AS WELL AS FOR THE TURKS AND CAICOS ISLANDS. 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 15.8N 63.0W AT 23/0300Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 17 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT.......120NE 0SE 0SW 90NW. 12 FT SEAS..360NE 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 15.8N 63.0W AT 23/0300Z AT 23/0000Z CENTER WAS LOCATED NEAR 15.8N 62.2W FORECAST VALID 23/1200Z 16.2N 65.4W MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 30SE 0SW 90NW. FORECAST VALID 24/0000Z 16.9N 68.1W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 25NE 0SE 0SW 25NW. 34 KT...130NE 50SE 30SW 100NW. FORECAST VALID 24/1200Z 17.5N 70.5W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 25NE 0SE 0SW 25NW. 50 KT... 40NE 20SE 0SW 40NW. 34 KT...140NE 60SE 40SW 120NW. FORECAST VALID 25/0000Z 18.6N 72.7W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 40NE 20SE 0SW 40NW. 34 KT...140NE 60SE 40SW 120NW. FORECAST VALID 26/0000Z 21.5N 77.0W...ON NORTH COAST OF CUBA 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 27/0000Z 24.0N 80.5W MAX WIND 65 KT...GUSTS 80 KT. OUTLOOK VALID 28/0000Z 27.0N 83.5W MAX WIND 70 KT...GUSTS 85 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.8N 63.0W NEXT ADVISORY AT 23/0900Z $$ FORECASTER PASCH