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