Tropical Storm ISAAC

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TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER  27
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092012
2100 UTC MON AUG 27 2012
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
THE HURRICANE WARNING FROM THE FLORIDA-ALABAMA BORDER TO DESTIN HAS
BEEN CHANGED TO A TROPICAL STORM WARNING.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* EAST OF MORGAN CITY LOUISIANA TO THE ALABAMA-FLORIDA BORDER...
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...
* FROM THE ALABAMA-FLORIDA BORDER TO THE AUCILLA 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. 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 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 26.4N  86.2W AT 27/2100Z
POSITION ACCURATE WITHIN  15 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT  10 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  981 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT....... 50NE  15SE  15SW  50NW.
34 KT.......150NE 150SE  80SW 180NW.
12 FT SEAS..180NE 180SE 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 26.4N  86.2W AT 27/2100Z
AT 27/1800Z CENTER WAS LOCATED NEAR 26.1N  85.9W
 
FORECAST VALID 28/0600Z 27.4N  87.5W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 20NE   0SE   0SW  20NW.
50 KT... 60NE  20SE  20SW  60NW.
34 KT...165NE 150SE  80SW 180NW.
 
FORECAST VALID 28/1800Z 28.6N  89.0W
MAX WIND  80 KT...GUSTS 100 KT.
64 KT... 20NE  20SE   0SW  20NW.
50 KT... 60NE  50SE  30SW  60NW.
34 KT...180NE 150SE  80SW 180NW.
 
FORECAST VALID 29/0600Z 29.5N  90.0W...NEAR THE COAST
MAX WIND  85 KT...GUSTS 105 KT.
64 KT... 30NE  20SE  10SW  20NW.
50 KT... 60NE  60SE  40SW  60NW.
34 KT...180NE 150SE  80SW 150NW.
 
FORECAST VALID 29/1800Z 30.3N  90.7W...INLAND
MAX WIND  75 KT...GUSTS  90 KT.
50 KT... 60NE  60SE  40SW  40NW.
34 KT...180NE 150SE  80SW 110NW.
 
FORECAST VALID 30/1800Z 32.2N  91.8W...INLAND
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 60NE 130SE  30SW  40NW.
 
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 31/1800Z 35.9N  92.1W...INLAND
MAX WIND  25 KT...GUSTS  35 KT.
 
OUTLOOK VALID 01/1800Z 38.7N  89.3W...INLAND
MAX WIND  20 KT...GUSTS  30 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.4N  86.2W
 
NEXT ADVISORY AT 28/0300Z
 
$$
FORECASTER STEWART
 
 
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