000
FZNT02 KNHC 270307
HSFAT2

HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC MON AUG 27 2012

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE 
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

PAN PAN

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

SYNOPSIS VALID 0000 UTC MON AUG 27.
24 HOUR FORECAST VALID 0000 UTC TUE AUG 28.
48 HOUR FORECAST VALID 0000 UTC WED AUG 29.

.WARNINGS.

...GULF OF MEXICO HURRICANE WARNING...
.TROPICAL STORM ISAAC NEAR 24.2N 82.9W 993 MB AT 0300 UTC AUG 27 
MOVING WNW OR 285 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 55 KT 
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM N 
SEMICIRCLE...120 NM SE QUADRANT AND 80 NM SW QUADRANT.SEAS 12 
FT OR GREATER WITHIN 200 NM E SEMICIRCLE AND 150 NM W SEMICIRCLE 
WITH SEAS TO 19 FT.
.24 HOUR FORECAST HURRICANE ISAAC NEAR 26.5N 86.7W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER WITHIN 210 NM 
N SEMICIRCLE...AND 150 NM SE...180 NM SW QUADRANTS WITH SEAS TO 
26 FT.
.48 HOUR FORECAST HURRICANE ISAAC NEAR 28.9N 89.3W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS 
WITHIN 180 NM NE QUADRANT...150 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
210 NM NE...270 NM SE...210 NM SW...AND 75 NM NW QUADRANTS WITH 
SEAS TO 30 FT.
.72 HOUR FORECAST HURRICANE ISAAC INLAND NEAR 30.6N 90.3W. 
MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION ISAAC INLAND NEAR 33.0N
91.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION ISAAC INLAND NEAR 36.0N
91.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.EXCEPT AS NOTED IN ISAAC WARNING...OVER ATLC...GULF OF MEXICO 
AND CARIBBEAN FORECAST WATERS WITHIN 390 NM NE...420 NM SE...300 
NM SW...AND 390 NM NW QUADRANTS WINDS 20 TO 33 KT. SEAS TO 12 
FT. 
.24 HOUR FORECAST EXCEPT AS NOTED IN ISAAC WARNING...OVER 
FORECAST WATERS WITHIN 240 NM OF CENTER EXCEPT 360 NM W 
SEMICIRCLE WINDS 20 TO 33 KT. SEAS TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN ISAAC WARNING...GULF OF 
MEXICO WATERS N OF 24N E OF 95W WINDS 20 TO 33 KT. SEAS TO 12 FT.

.ATLC FROM 25N TO 30N BETWEEN 56W AND 61W E TO SE WINDS 20 KT OR 
LESS. SEAS TO 9 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC LOW PRES NEAR 18.5N37.5W 1009 MB MOVING NW 13 KT. FROM 18N 
TO 24N E OF 42W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
21.5N42.5W 1012 MB. WITHIN 300 NM N SEMICIRCLE WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
23N47W 1013 MB. WITHIN 270 NM NE QUADRANT E TO SE WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT. WITHIN 180 NM NW QUADRANT NE WINDS 20 TO 25 
KT. SEAS TO 9 FT.

.CARIBBEAN S OF 16N BETWEEN 67W AND 74W E TO SE WINDS 20 TO 25 
KT. SEAS TO 8 FT. EXCEPT AS NOTED ABOVE WITH ISAAC N OF 16N 
BETWEEN BETWEEN 74W AND 77W SE WINDS 20 KT. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST FROM 11N TO 17N BETWEEN 66W AND 78W E TO SE 
WINDS 20 TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST FROM 11N TO 18N BETWEEN 66W AND 79W E TO SE 
WINDS 20 TO 25 KT. SEAS TO 10 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.