000
FZNT02 KNHC 250332
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU AUG 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 0000 UTC THU AUG 25.
24 HOUR FORECAST VALID 0000 UTC FRI AUG 26.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 27.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IRENE NEAR 23.8N 75.4W 952 MB AT 0300 UTC AUG 25 
MOVING NW OR 315 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 105 KT 
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 220 NM NE 
QUADRANT...180 NM SE QUADRANT...100 NM SW QUADRANT...AND 130 NM 
NW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 240 NM NW AND SE 
QUADRANTS...270 NM NE QUADRANT AND 90 NM SW QUADRANT WITH SEAS 
TO 34 FT.
.24 HOUR FORECAST HURRICANE IRENE NEAR 27.5N 77.3W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER WITH SEAS 
TO 38 FT.
.48 HOUR FORECAST HURRICANE IRENE NEAR 31.5N 77.0W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. LITTLE CHANGE IN RADIUS OF 
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER WITH SEAS 
TO 41 FT. 
.72 HOUR FORECAST HURRICANE IRENE NEAR 36.0N 75.2W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IRENE NEAR 42.5N 72.0W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IRENE NEAR 50.0N
67.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

.SYNOPSIS AND FORECAST.

.ATLC AND CARIBBEAN...EXCEPT AS NOTED IN IRENE WARNING...OVER 
FORECAST WATERS WITHIN 510 NM NE AND 270 NM SW SEMICIRCLES...
WINDS 20 TO 33 KT. SEAS TO 12 FT. WITHIN 120 NM NW AND 15 NM SE 
SEMICIRCLES OF IRENE...NUMEROUS STRONG CONVECTION.  
.24 HOUR FORECAST...EXCEPT AS NOTED IN IRENE WARNING...OVER 
FORECAST WATERS WITHIN 540 NM NE AND 240 NM SW SEMICIRCLES  
WINDS 20 TO 33 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST...EXCEPT AS NOTED IN IRENE WARNING...OVER 
FORECAST WATERS WITHIN 450 NM E AND 270 NM W SEMICIRCLES WINDS 
20 TO 33 KT. SEAS TO 12 FT. 

.ATLC LOW PRES AT 23N44.5W 1014 MB MOVING W 15 KT. WITHIN 300 NM 
N SEMICIRCLE OF LOW PRES WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. 
FROM 20N TO 28N E OF 40W NE TO E WINDS 20 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WEAKENING LOW PRES NEAR 23.5N51W 1016 MB.  
WITHIN 270 NM N SEMICIRCLE E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 
11 FT. FROM 20N TO 25N E OF 45W NE TO E WINDS 20 KT. SEAS TO 9 
FT. 
.48 HOUR FORECAST LOW PRES DISSIPATED TO TROUGH ALONG 56W FROM 
23N TO 27N. FROM 25N TO 30N BETWEEN 51W AND 57W E TO SE WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT.

.ATLC 24 HOUR FORECAST LOW PRES 1006 MB E OF AREA ASSOCIATED 
WITH TROPICAL WAVE ALONG 29W. FROM 16N TO 20N E OF 37W NE WINDS 
20 KT. SEAS TO 8 FT. 
.ATLC 48 HOUR FORECAST LOW PRES 1005 MB E OF AREA...POSSIBLE 
TROPICAL CYCLONE...ASSOCIATED WITH TROPICAL WAVE ALONG 34W. FROM 
15N TO 23N E OF 40W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT IN NE 
SWELL. ELSEWHERE S OF 25N E OF 40W WINDS LESS THAN 20 KT. SEAS 8 
FT IN NE SWELL.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.