000
FZNT02 KNHC 310343
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED AUG 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED AUG 31.
24 HOUR FORECAST VALID 0000 UTC THU SEP 01.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 02.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM KATIA AT 13.3N 37.5W 997 MB AT 0300 UTC AUG 31 
MOVING W NW OR 285 DEG AT 19 KT. MAXIMUM SUSTAINED WIND 50 GUSTS 
60 KT. TROPICAL STORM FORCE WIND WITHIN 75 NM N SEMICIRCLE...40 
NM SE QUADRANT AND 20 NM SW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 50 NM N SEMICIRCLE WITH SEAS TO 15 FT.
.24 HOUR FORECAST HURRICANE KATIA NEAR 14.8N 43.4W.  MAXIMUM 
SUSTAINED WIND 70 GUSTS 85 KT. TROPICAL STORM FORCE WIND WITHIN 
100 NM N SEMICIRCLE...75 NM SE QUADRANT AND 40 NM SW QUADRANT. 
SEAS 12 FT OR GREATER WITHIN AREAS OF TROPICAL STORM WIND WITH 
SEAS TO 20 FT.
.48 HOUR FORECAST HURRICANE KATIA NEAR 16.5N 49.3W.  MAXIMUM 
SUSTAINED WIND 90 GUSTS 110 KT. TROPICAL STORM FORCE WIND WITHIN 
140 NM N SEMICIRCLE...120 NM SE QUADRANT AND 75 NM SW QUADRANT.  
SEAS 12 FT OR GREATER WITHIN 180 NM N AND 150 NM S SEMICIRCLES 
WITH SEAS TO 25 FT.
.72 HOUR FORECAST HURRICANE KATIA NEAR 18.5N 54.0W.
MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE KATIA NEAR 20.5N 57.5W.
MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE KATIA NEAR 23.0N 60.5W.
MAXIMUM SUSTAINED WINDS 110 KT GUSTS 135 KT.

.SYNOPSIS AND FORECAST.

.ATLC...EXCEPT AS NOTED IN WARNINGS...ELSEWHERE OVER FORECAST 
FROM 12N TO 17N E OF 37W N TO NE WINDS 20 TO 33 KT. SEAS TO 9 FT.
.24 HOUR FORECAST...EXCEPT AS NOTED IN WARNINGS...ELSEWHERE OVER 
FORECAST WATERS WITHIN 360 NM N SEMICIRCLE...270 NM SE QUADRANT 
AND 180 NM  SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 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 12 FT.

.ATLC TROUGH ALONG 54W N OF 26N WITHIN 120 NM W OF AXIS NE WINDS 
20 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST TROUGH DISSIPATED. WINDS LESS THAN 20 KT. SEAS 
LESS THAN 8 FT.

.CARIBBEAN S OF 14N FROM 70W TO 75W E WINDS 20 KT.  SEAS 8 FT.  
ELSEWHERE FROM 15N TO 18N BETWEEN 75W AND 80W E TO SE WINDS 20 
KT.  SEAS LESS THAN 8 FT.
.24 HOUR FORECAST S OF 17N BETWEEN 70W AND 80W E WINDS 20 TO 25 
KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST S OF 15N BETWEEN 70W AND 75W E WINDS 20 TO 25 
KT. SEAS 8 TO 9 FT. 

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

$$
.FORECASTER WALLY BARNES. NATIONAL HURRICANE CENTER.