000
FZNT02 KNHC 301539
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC TUE AUG 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC TUE AUG 30.
24 HOUR FORECAST VALID 1200 UTC WED AUG 31.
48 HOUR FORECAST VALID 1200 UTC THU SEP 01.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM KATIA NEAR 12.3N 33.4W 1003 MB AT 1500 UTC AUG
30 MOVING WNW OR 285 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER
EXCEPT 0 NM SW QUADRANT.  SEAS 12 FT OR GREATER WITHIN 30 NM N
SEMICIRCLE AND 0 NM S SEMICIRCLE WITH SEAS TO 13 FT.
.24 HOUR FORECAST TROPICAL STORM KATIA NEAR 13.8N 39.0W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM S SEMICIRCLE...45 NM NE QUADRANT AND 60 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM N SEMICIRCLE...90 
NM SE AND 45 NM SW QUADRANTS WITH SEAS TO SEAS TO 20 FT.
.48 HOUR FORECAST HURRICANE KATIA NEAR 15.4N 45.7W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE. SEAS 12 FT OR 
GREATER WITHIN 150 NM N SEMICIRCLE...120 NM SE AND 60 NM SW 
QUADRANTS WITH SEAS TO 25 FT.
.72 HOUR FORECAST HURRICANE KATIA NEAR 17.0N 51.5W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE KATIA NEAR 19.0N 55.5W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT.
.120 HOUR FORECAST HURRICANE KATIA NEAR 21.5N 59.5W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT.

.SYNOPSIS AND FORECAST.

.ATLC TROUGH FROM 27N41W AND 20N42W N OF 23N E OF TROUGH TO 37W 
SE WINDS 20 KT. SEAS 8 FT. 
.24 HOUR FORECAST WEAKENING TROUGH FROM 30N45W TO 25N47W. WINDS 
LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.ATLC...EXCEPT AS NOTED IN WARNINGS...ELSEWHERE OVER FORECAST 
FROM 11N TO 19N E OF 37W N TO NE WINDS 20 TO 25 KT. SEAS 8 FT. 
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...ELSEWHERE OVER 
FORECAST WATERS WITHIN 510 NM N SEMICIRCLE...270 NM SE QUADRANT 
AND 180 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. 
.48 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...WITHIN 420 NM 
N AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.

.CARIBBEAN S OF 14N BETWEEN 68W AND 74W E WINDS 20 TO 25 KT. 
SEAS TO 8 FT. ELSEWHERE FROM 12N TO 18N BETWEEN 68W AND 75W E 
WINDS 20 KT. SEAS LESS THAN 8 FT. N OF 16N BETWEEN 75W AND 85W 
E TO SE WINDS 20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST S OF 15N BETWEEN 68W AND 77W NE TO E WINDS 
20 TO 25 KT. SEAS TO 9 FT. ELSEWHERE FROM 12N TO 18N BETWEEN 67W 
AND 82W E WINDS 20 KT. SEAS LESS THAN 8 FT. N OF 16N W OF 83W SE 
WINDS 20 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST S OF 15N BETWEEN 70W AND 80W E WINDS 20 TO 25 
KT. SEAS TO 9 FT. FROM 15N TO 18N BETWEEN 70W AND 83W E WINDS 20 
KT. SEAS LESS THAN 8 FT. W OF 83W SE WINDS 20 KT. SEAS LESS THAN 
8 FT. 

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

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.