676 
 WTNT24 KNHC 270850
 TCMAT4
  
 TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER  25
 NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
 0900 UTC MON AUG 27 2012
  
 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
  
 A TROPICAL STORM WARNING HAS BEEN ISSUED FROM INTRACOASTAL CITY TO
 MORGAN CITY LOUISIANA.
  
 A HURRICANE WATCH HAS BEEN ISSUED FROM INTRACOASTAL CITY TO MORGAN
 CITY LOUISIANA.
  
 A TROPICAL STORM WATCH HAS BEEN ISSUED FROM EAST OF SABINE PASS TO
 WEST OF INTRACOASTAL CITY LOUISIANA.
  
 THE HURRICANE WATCH FOR THE FLORIDA PANHANDLE FROM EAST OF DESTIN
 TO INDIAN PASS HAS BEEN DISCONTINUED.
  
 THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED ALONG THE EAST
 COAST OF FLORIDA NORTH OF OCEAN REEF AND FOR LAKE OKEECHOBEE.
  
 SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
  
 A HURRICANE WARNING IS IN EFFECT FOR...
 * EAST OF MORGAN CITY LOUISIANA TO DESTIN FLORIDA...INCLUDING
 METROPOLITAN NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE MAUREPAS
  
 A HURRICANE WATCH IS IN EFFECT FOR...
 * INTRACOASTAL CITY TO MORGAN CITY LOUISIANA
  
 A TROPICAL STORM WARNING IS IN EFFECT FOR...
 * THE FLORIDA PENINSULA FROM OCEAN REEF SOUTHWARD ON THE EAST COAST
 AND FROM TARPON SPRINGS SOUTHWARD ON THE WEST COAST
 * FLORIDA KEYS...INCLUDING THE DRY TORTUGAS AND FLORIDA BAY
 * EAST OF DESTIN FLORIDA TO THE SUWANNEE RIVER
 * INTRACOASTAL CITY TO MORGAN CITY LOUISIANA
  
 A TROPICAL STORM WATCH IS IN EFFECT FOR...
 * EAST OF SABINE PASS TO WEST OF INTRACOASTAL CITY LOUISIANA
  
 A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
 SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED
 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL STORM
 FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT
 OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE
 RUSHED TO COMPLETION.
  
 A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
 WITHIN THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS
 BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL STORM FORCE
 WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
 DANGEROUS.
  
 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.
  
 TROPICAL STORM CENTER LOCATED NEAR 25.2N  84.2W AT 27/0900Z
 POSITION ACCURATE WITHIN  25 NM
  
 PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT  12 KT
  
 ESTIMATED MINIMUM CENTRAL PRESSURE  990 MB
 MAX SUSTAINED WINDS  55 KT WITH GUSTS TO  65 KT.
 50 KT....... 50NE   0SE   0SW  50NW.
 34 KT.......210NE 210SE  80SW 180NW.
 12 FT SEAS..200NE 200SE 180SW 150NW.
 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 25.2N  84.2W AT 27/0900Z
 AT 27/0600Z CENTER WAS LOCATED NEAR 24.9N  83.7W
  
 FORECAST VALID 27/1800Z 26.2N  85.9W
 MAX WIND  60 KT...GUSTS  75 KT.
 50 KT... 60NE   0SE   0SW  60NW.
 34 KT...180NE 180SE  80SW 180NW.
  
 FORECAST VALID 28/0600Z 27.6N  87.8W
 MAX WIND  70 KT...GUSTS  85 KT.
 64 KT... 20NE  20SE   0SW  20NW.
 50 KT... 60NE  60SE  30SW  60NW.
 34 KT...180NE 150SE  80SW 180NW.
  
 FORECAST VALID 28/1800Z 28.8N  89.1W
 MAX WIND  75 KT...GUSTS  90 KT.
 64 KT... 30NE  20SE  10SW  20NW.
 50 KT... 60NE  60SE  40SW  60NW.
 34 KT...180NE 150SE  80SW 150NW.
  
 FORECAST VALID 29/0600Z 29.7N  90.1W...INLAND
 MAX WIND  80 KT...GUSTS 100 KT.
 50 KT... 70NE  60SE  50SW  50NW.
 34 KT...180NE 150SE  90SW 140NW.
  
 FORECAST VALID 30/0600Z 31.2N  91.1W...INLAND
 MAX WIND  50 KT...GUSTS  60 KT.
 50 KT... 40NE  40SE   0SW  30NW.
 34 KT... 90NE 150SE  60SW  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 31/0600Z 34.0N  92.0W...INLAND
 MAX WIND  30 KT...GUSTS  40 KT.
  
 OUTLOOK VALID 01/0600Z 38.0N  91.5W...INLAND
 MAX WIND  20 KT...GUSTS  30 KT.
  
 REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 25.2N  84.2W
  
 NEXT ADVISORY AT 27/1500Z
  
 $$
 FORECASTER BRENNAN