000
FZNT02 KNHC 311505
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED AUG 31.
24 HOUR FORECAST VALID 1200 UTC THU SEP 1.
48 HOUR FORECAST VALID 1200 UTC FRI SEP 2.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM KATIA NEAR 14.2N 40.8W 994 MB AT 1500 UTC AUG 31 
MOVING WNW OR 285 DEG AT 18 KT. MAXIMUM SUSTAINED WINDS 55 KT 
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 75 NM N 
SEMICIRCLE...40 NM SE QUADRANT AND 20 NM SW QUADRANT.  SEAS 12 
FT OR GREATER WITHIN 75 NM NE AND 60 NM NW QUADRANTS WITH SEAS 
TO 18 FT.
.12 HOUR FORECAST HURRICANE KATIA NEAR 14.7N 43.3W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.24 HOUR FORECAST HURRICANE KATIA NEAR 15.4N 46.3W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM N SEMICIRCLE...80 NM SE QUADRANT AND 50 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N AND 60 NM S 
SEMICIRCLES WITH SEAS TO 26 FT.
.48 HOUR FORECAST HURRICANE KATIA NEAR 17.3N 51.0W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 140 NM N SEMICIRCLE...120 NM SE QUADRANT AND 75 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 200 NM N AND 90 NM S 
SEMICIRCLES WITH SEAS TO 32 FT.
.72 HOUR FORECAST HURRICANE KATIA NEAR 19.5N 54.5W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE KATIA NEAR 21.5N 57.5W. MAXIMUM
SUSTAINED WINDS 100 KT GUSTS 120 KT.
.120 HOUR FORECAST HURRICANE KATIA NEAR 23.5N 60.5W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT.

.SYNOPSIS AND FORECAST.

.ATLC...EXCEPT AS NOTED IN KATIA WARNING...WITHIN 420 NM N AND 
120 S SEMICIRCLES WINDS 20 TO TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST...EXCEPT AS NOTED IN KATIA WARNING...WITHIN 
420 NM N AND 180 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 
12 FT. 
.48 HOUR FORECAST...EXCEPT AS NOTED IN KATIA WARNING...WITHIN 
420 NM N AND 240 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 
12 FT.

.CARIBBEAN S OF 16N BETWEEN 68W AND 75W E WINDS 20 TO 25 KT. 
SEAS TO 8 FT. ELSEWHERE FROM 12N TO 18N BETWEEN 67W AND 81W E 
WINDS 20 KT. SEAS LESS THAN 8 FT. N OF 15N W OF 81W SE WINDS 20 
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 12N TO 18N BETWEEN 67W AND 81W E WINDS 20 
KT. SEAS TO 8 FT. N OF 15N W OF 81W SE WINDS TO 20 KT. SEAS LESS 
THAN 8 FT.
.48 HOUR FORECAST S OF 14N BETWEEN 68W AND 75W NE TO E WINDS 20 
TO 25 KT. SEAS TO 8 FT. ELSEWHERE FROM 12N TO 16N BETWEEN 68W AND
79W NE TO E WINDS TO 20 KT. SEAS LESS THAN 8 FT. FROM 15N TO 18N
BETWEEN 83W AND 87W SE WINDS 20 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO S OF 26N E OF 90W SE WINDS TO 20 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST NEW LOW PRES 1008 MB NEAR 27N93W. N OF 22N E 
OF 92W SE WINDS TO 20 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.