000
FZNT02 KNHC 270331
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT AUG 27 2011

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT AUG 27.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 28.
48 HOUR FORECAST VALID 0000 UTC MON AUG 29.

.WARNINGS.

...TROPICAL STORM WARNING...
.HURRICANE IRENE NEAR 32.6N 76.9W 951 MB AT 0300 UTC AUG 27 
MOVING NNE OR 020 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 85 KT 
GUSTS 105 KT. HURRICANE FORCE WINDS N OF AREA. TROPICAL STORM 
FORCE WINDS WITHIN 250 NM NE QUADRANT...225 NM SE QUADRANT...140 
NM SW QUADRANT...AND 175 NM NW QUADRANT. SEAS 12 FT OR GREATER 
OVER FORECAST WATERS WITHIN 330 NM SE AND 180 NM SW QUADRANTS 
WITH SEAS TO 26 FT.
.24 HOUR FORECAST HURRICANE IRENE NEAR 36.7N 75.5W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 250 NM NE QUADRANT...225 NM SE QUADRANT...140 NM SW 
QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER 
FORECAST WATERS N OF 29N BETWEEN 69W AND 77W WITH SEAS TO 16 
FT.
.48 HOUR FORECAST TROPICAL STORM IRENE INLAND NEAR 43.8N 71.3W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE 
WINDS WITHIN 270 NM NE QUADRANT...240 NM SE QUADRANT...140 NM SW 
QUADRANT...AND 110 NM NW QUADRANT. SEAS 8 TO 12 FT N OF 29N
BETWEEN 63W AND 71W.
.72 HOUR FORECAST POST TROPICAL EXTRATROPICAL IRENE NEAR 52.0N 
62.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST TROPICAL EXTRATROPICAL IRENE NEAR 56.5N 
46.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST POST TROPICAL EXTRATROPICAL IRENE NEAR 57.5N 
26.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

.SYNOPSIS AND FORECAST.

.ATLC EXCEPT AS NOTED IN WARNINGS...ELSEWHERE N OF 26N W OF 70W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. N OF 27N BETWEEN 67W AND 70W 
SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. FROM 24N TO 27N W OF 
70W S TO SW WINDS 20 KT. SEAS TO 8 FT E OF BAHAMAS.
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...ELSEWHERE N OF 
29N BETWEEN 69W AND 77W S TO SW WINDS 20 TO 30 KT. SEAS 11 TO 16 
FT. REMAINDER OF AREA N OF 28N W OF 67W S TO SW WINDS 20 KT. 
SEAS 8 TO 11 FT E OF 79W. FROM 26N TO 28N BETWEEN 67W AND 77W 
WINDS LESS THAN 20 KT. SEAS 8 TO 10 FT IN A BROAD MIX OF SWELL.
.48 HOUR FORECAST EXCEPT AS NOTED IN WARNINGS...N OF 29N BETWEEN 
63W AND 71W S TO SW WINDS 20 KT. SEAS 8 TO 12 FT IN MIXED SE AND 
NW SWELL. FROM 27N TO 29N BETWEEN 63W AND 71W WINDS LESS THAN 20 
KT. SEAS TO 9 FT PRIMARILY IN SE SWELL.

.ATLC LOW...REMNANTS OF TROPICAL DEPRESSION TEN...E OF AREA NEAR 
16N34W 1010 MB. FROM 15N TO 23N E OF 39W N TO NE WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 13N TO 23N E OF 42W WINDS 
LESS THAN 20 KT. SEAS TO 9 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST LOW NEAR 17N36W 1012 MB. WITHIN 240 NM NW 
QUADRANT OF LOW N TO NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. 
ELSEWHERE FROM 15N TO 23N E OF 41W WINDS LESS THAN 20 KT. SEAS 
TO 9 FT IN MIXED NE AND SE SWELL.
.48 HOUR FORECAST REMNANT LOW DISSIPATED. TROUGH FROM 22N37W TO 
18N38W TO 14N38W. WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.ATLC TROUGH FROM 30N61W TO 27N57W TO 24N54W. WITHIN 180 NM NE 
OF TROUGH E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST TROUGH DISSIPATED. N OF 29N BETWEEN 56W AND 
61W WINDS LESS THAN 20 KT. SEAS 8 FT IN SE SWELL.
.30 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. 

.CARIBBEAN S OF 14N BETWEEN 68W AND 72W E TO SE WINDS 20 KT. 
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO 12 HOUR FORECAST N OF 27N E OF 87W W TO NW WINDS 
20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.