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#536410 (Received by flhurricane at: 5:03 PM 23.Aug.2012) TCMAT4 TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 2100 UTC THU AUG 23 2012 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF THE BAHAMAS HAS ISSUED A TROPICAL STORM WARNING FOR THE SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED ISLAND...LONG CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS AND THE TURKS AND CAICOS ISLANDS. THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WATCH FOR THE CUBAN PROVINCES OF CAMAGUEY...LAS TUNAS...GRANMA...HOLGUIN... SANTIAGO DE CUBA...AND GUANTANAMO. 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... * 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 * SOUTHEASTERN BAHAMAS INCLUDING THE ACKLINS...CROOKED ISLAND...LONG CAY...THE INAGUAS...MAYAGUANA...AND THE RAGGED ISLANDS AND THE TURKS AND CAICOS ISLANDS A TROPICAL STORM WATCH IS IN EFFECT FOR... * THE CUBAN PROVINCES OF CAMAGUEY...LAS TUNAS...GRANMA...HOLGUIN... SANTIAGO DE CUBA...AND GUANTANAMO. 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 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 16.0N 67.1W AT 23/2100Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT.......120NE 60SE 0SW 90NW. 12 FT SEAS..500NE 60SE 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 16.0N 67.1W AT 23/2100Z AT 23/1800Z CENTER WAS LOCATED NEAR 15.9N 66.4W FORECAST VALID 24/0600Z 16.6N 69.0W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 60SE 0SW 90NW. FORECAST VALID 24/1800Z 17.5N 71.5W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 25NE 0SE 0SW 25NW. 34 KT...130NE 50SE 30SW 100NW. FORECAST VALID 25/0600Z 18.9N 74.0W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 20SE 0SW 40NW. 34 KT...140NE 60SE 40SW 120NW. FORECAST VALID 25/1800Z 20.3N 76.2W...INLAND MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 40NE 20SE 0SW 30NW. 34 KT...140NE 60SE 40SW 120NW. FORECAST VALID 26/1800Z 23.0N 80.0W...OVER WATER MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 20SE 0SW 20NW. 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 27/1800Z 25.5N 83.0W MAX WIND 65 KT...GUSTS 80 KT. OUTLOOK VALID 28/1800Z 28.5N 85.5W MAX WIND 75 KT...GUSTS 90 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.0N 67.1W NEXT ADVISORY AT 24/0300Z $$ FORECASTER BEVEN |