000
FZNT02 KNHC 271017
HSFAT2

HIGH SEAS FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MON AUG 27.
24 HOUR FORECAST VALID 0600 UTC TUE AUG 28.
48 HOUR FORECAST VALID 0600 UTC WED AUG 29.

.WARNINGS.

...GULF OF MEXICO HURRICANE WARNING...
.TROPICAL STORM ISAAC NEAR 25.2N 84.2W 990 MB AT 0900 UTC AUG 27
MOVING WNW OR 300 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 55 KT 
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM E 
SEMICIRCLE...80 NM SW QUADRANT AND 180 NM NW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 200 NM E SEMICIRCLE...180 NM SW QUADRANT 
AND 150 NM NW QUADRANT WITH SEAS TO 19 FT.
.24 HOUR FORECAST HURRICANE ISAAC NEAR 27.6N 87.8W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM N SEMICIRCLE...150 NM SE QUADRANT AND 80 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER WITH
SEAS TO 23 FT.
.48 HOUR FORECAST HURRICANE ISAAC INLAND NEAR 29.7N 90.1W.
MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE
WINDS WITHIN 180 NM NE QUADRANT...150 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 140 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER
FORECAST WATERS WITHIN 240 NM SE AND 180 NM SW QUADRANTS WITH
SEAS TO 20 FT.
.72 HOUR FORECAST TROPICAL STORM ISAAC INLAND NEAR 31.2N 91.1W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION ISAAC INLAND NEAR 34.0N
92.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION ISAAC INLAND NEAR 38.0N
91.5W. 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 WARNINGS...OVER GULF OF MEXICO AND ATLC
FORECAST WATERS WITHIN 390 NM E AND 300 NM W SEMICIRCLES OF 
CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...OVER FORECAST 
WATERS WITHIN 360 NM NE AND 240 NM SW SEMICIRCLES OF CENTER 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN ISAAC WARNING...GULF OF 
MEXICO WATERS N OF 25N E OF 89W AND N OF 26N BETWEEN 89W AND
95W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

.ATLC FROM 25N TO 29N BETWEEN 56W AND 60W E TO SE WINDS 20 KT OR 
LESS. SEAS TO 9 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC LOW PRES NEAR 19N40W 1011 MB IS MOVING NW 15 KT. FROM 18N 
TO 24N E OF 41W NE TO E WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
21N43W 1010 MB. WITHIN 330 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.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
22N45W 1012 MB. WITHIN 300 NM NE QUADRANT E TO SE WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT. WITHIN 150 NM NW QUADRANT NE WINDS 20 TO 25 
KT. SEAS TO 9 FT.

.CARIBBEAN N OF 13N BETWEEN 70W AND 75W E TO SE WINDS 20 TO 25 
KT. SEAS 8 FT. N OF 16N BETWEEN 75W AND 83W SE TO S WINDS 20 TO 
25 KT. SEAS 8 FT.
.24 HOUR FORECAST FROM 11N TO 17N BETWEEN 66W AND 77W E TO SE 
WINDS 20 TO 25 KT. SEA 8 TO 10 FT.
.48 HOUR FORECAST FROM 11N TO 18N BETWEEN 66W AND 78W E TO SE 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.