000
FZNT02 KNHC 240304
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC FRI AUG 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 0000 UTC FRI AUG 24.
24 HOUR FORECAST VALID 0000 UTC SAT AUG 25.
48 HOUR FORECAST VALID 0000 UTC SUN AUG 26.

.WARNINGS.

...CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM ISAAC NEAR 16.7N 68.7W 1001 MB AT 0300 UTC AUG 
24 MOVING WNW OR 290 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 40 KT 
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NW AND SE 
QUADRANTS...160 NM NE QUADRANT AND 0 NM SW QUADRANT.  SEAS 12 FT 
OR GREATER WITHIN 500 NM NE QUADRANT...60 NM SE QUADRANT...0 NM 
SW QUADRANT...AND 360 NM NW QUADRANT WITH SEAS TO 17 FT.
.24 HOUR FORECAST TROPICAL STORM ISAAC NEAR 18.8N 73.1W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NW AND SE QUADRANTS...160 NM NE QUADRANT AND 40 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM NE QUADRANT... 
120 NM SE QUADRANT...0 NM SW QUADRANT AND 240 NM NW QUADRANT 
WITH SEAS TO 17 FT.
.48 HOUR FORECAST TROPICAL STORM ISAAC INLAND NEAR 21.8N 77.7W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. 
.72 HOUR FORECAST TROPICAL STORM ISAAC OVER WATER NEAR 24.8N
82.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE ISAAC NEAR 27.5N 85.5W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST HURRICANE ISAAC NEAR 30.0N 88.0W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 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.

.CARIBBEAN AND ATLC EXCEPT AS NOTED IN ISAAC WARNINGS...WITHIN 
500 NM N SEMICIRCLE...420 NM SE QUADRANT...AND 120 NM SW 
QUADRANT OF CENTER WINDS 20 TO 33 KT. SEAS TO 12 FT. ELSEWHERE 
FROM 13N TO 27N BETWEEN 57W AND 61W WINDS 20 KT OR LESS. SEAS TO 
9 FT IN SE SWELL.
.24 HOUR FORECAST EXCEPT AS NOTED IN ISAAC WARNINGS...WITHIN 500 
NM N SEMICIRCLE...420 NM SE QUADRANT...AND 150 NM SW QUADRANT OF 
CENTER WINDS 20 TO 33 KT. SEAS TO 12 FT.
.48 HOUR FORECAST EXCEPT AS NOTED IN ISAAC WARNINGS...WITHIN 420 
NM N AND NE SEMICIRCLES...AND 150 SW QUADRANT OF CENTER WINDS 20 
TO 33 KT. SEAS TO 12 FT. ELSEWHERE S OF 29N BETWEEN 70W AND 81W 
WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL. 

.TROPICAL DEPRESSION JOYCE NEAR 16.3N 43.7W 1008 MB AT 0300 UTC 
AUG 24 MOVING WNW OR 300 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 
30 KT GUSTS 40 KT. WITHIN 300 NM N SEMICIRCLE...150 NM SE 
QUADRANT...AND 45 NM SW QUADRANT OF CENTER WINDS 20 TO 30 KT. 
SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE AND 0 NM S 
SEMICIRCLE WITH SEAS TO 16 FT. ELSEWHERE FROM 10N TO 20N E OF 
45W WINDS 20 KT OR LESS. SEAS TO 9 FT IN SE SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION JOYCE NEAR 18.9N 48.9W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 300 NM N 
SEMICIRCLE...120 NM SE QUADRANT...AND 30 NM SW QUADRANT OF 
CENTER WINDS 20 TO 30 KT. SEAS TO 15 FT. ELSEWHERE FROM 13N TO 
25N E OF 52W WINDS 20 KT OR LESS. SEAS TO 9 FT IN SE SWELL.
.48 HOUR FORECAST TROPICAL DEPRESSION JOYCE NEAR 22.8N 55.5W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 360 NM N 
SEMICIRCLE...150 NM SE QUADRANT...AND 30 NM SW QUADRANT OF 
CENTER WINDS 20 TO 30 KT. SEAS TO 16 FT. ELSEWHERE FROM 17N TO 
28N BETWEEN 48W AND 58W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM JOYCE NEAR 27.0N 62.0W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM JOYCE NEAR 31.5N 64.5W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM JOYCE NEAR 36.0N 58.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.

.CARIBBEAN 48 HOUR FORECAST S OF 14N BETWEEN 67W AND 70W E WINDS 
20 KT. SEAS TO 8 FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.