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#537548 (Received by flhurricane at: 10:51 AM 27.Aug.2012)
TCMAT4

TROPICAL STORM ISAAC FORECAST/ADVISORY NUMBER 26
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
1500 UTC MON AUG 27 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

ALL TROPICAL STORM WARNINGS HAVE BEEN DISCONTINUED EAST AND SOUTH OF
AUCILLA RIVER FLORIDA.

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...
* EAST OF DESTIN FLORIDA 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 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 26.1N 85.3W AT 27/1500Z
POSITION ACCURATE WITHIN 15 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 988 MB
MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT.
50 KT....... 50NE 0SE 0SW 50NW.
34 KT.......180NE 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 26.1N 85.3W AT 27/1500Z
AT 27/1200Z CENTER WAS LOCATED NEAR 25.8N 84.8W

FORECAST VALID 28/0000Z 27.1N 86.8W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 20NE 0SE 0SW 20NW.
50 KT... 60NE 0SE 0SW 60NW.
34 KT...180NE 150SE 80SW 180NW.

FORECAST VALID 28/1200Z 28.3N 88.4W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 20NE 20SE 0SW 20NW.
50 KT... 60NE 50SE 30SW 60NW.
34 KT...180NE 150SE 80SW 180NW.

FORECAST VALID 29/0000Z 29.3N 89.6W
MAX WIND 80 KT...GUSTS 100 KT.
64 KT... 30NE 20SE 10SW 20NW.
50 KT... 60NE 60SE 40SW 60NW.
34 KT...180NE 150SE 80SW 150NW.

FORECAST VALID 29/1200Z 30.2N 90.5W...INLAND
MAX WIND 70 KT...GUSTS 85 KT.
50 KT... 60NE 60SE 40SW 40NW.
34 KT...180NE 150SE 80SW 120NW.

FORECAST VALID 30/1200Z 31.9N 91.7W...INLAND
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 90NE 150SE 50SW 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 31/1200Z 35.2N 92.3W...INLAND
MAX WIND 25 KT...GUSTS 35 KT.

OUTLOOK VALID 01/1200Z 39.3N 91.3W...INLAND
MAX WIND 20 KT...GUSTS 30 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.1N 85.3W

NEXT ADVISORY AT 27/2100Z

$$
FORECASTER STEWART