000
FZNT02 KNHC 111012
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC WED OCT 11 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC WED OCT 11.
24 HOUR FORECAST VALID 0600 UTC THU OCT 12.
48 HOUR FORECAST VALID 0600 UTC FRI OCT 13.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM SEAN NEAR 10.3N 33.1W 1006 MB AT 0900 UTC OCT 11
MOVING WNW OR 285 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER
EXCEPT 80 NM NE QUADRANT. SEAS TO 12 FT WITHIN 45 NM NE 
QUADRANT. ELSEWHERE OVER FORECAST WATERS WITHIN 14N35W TO 
13.5N35.5W TO 13N35.5W TO 11N35.5W TO 10.5N35W TO 14N35W WINDS 20
KT OR LESS. SEAS 8 FT IN N SWELL.
.24 HOUR FORECAST TROPICAL STORM SEAN NEAR 11.2N 36.5W. MAXIMUM 
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NE QUADRANT...60 NM SE QUADRANT...0 NM SW 
QUADRANT...AND 40 NM NW QUADRANT. SEAS TO 12 FT WITHIN 45 NM NE 
QUADRANT. ELSEWHERE WITHIN 12N36W TO 12N37W TO 11N37W TO 11N36W 
TO 11N35W TO 12N36W WINDS 20 TO 33 KT. SEAS 9 TO 10 FT. 
REMAINDER OF AREA WITHIN 15N35W TO 15N37W TO 14N39W TO 11N38W TO 
09N35W TO 15N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED N 
AND SE SWELL.
.48 HOUR FORECAST TROPICAL STORM SEAN NEAR 12.6N 39.5W. MAXIMUM 
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NE QUADRANT...60 NM SE QUADRANT...20 NM SW 
QUADRANT...AND 50 NM NW QUADRANT. SEAS TO 12 FT WITHIN 45 NM NE 
QUADRANT. ELSEWHERE WITHIN 13N39W TO 13N40W TO 12N40W TO 13N39W 
WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. REMAINDER OF AREA WITHIN 
15N36W TO 16N37W TO 16N41W TO 15N42W TO 11N39W TO 13N36W TO 
15N36W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED N AND SE 
SWELL.
.72 HOUR FORECAST TROPICAL STORM SEAN NEAR 14.5N 42.0W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM SEAN NEAR 16.7N 44.6W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW SEAN NEAR 18.0N 
47.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

...ATLC GALE WARNING...
.24 HOUR FORECAST WITHIN 31N78.5W TO 31N81.5W TO 30.5N81W TO 
30.5N80.5W TO 31N80.5W TO 31N78.5W E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.33 HOUR FORECAST WITHIN 31N76W TO 31N75W TO 31N78W TO 30N79W TO
29N79W TO 30N77W TO 31N76W SW TO W WINDS 25 TO 35 KT. SEAS 8 TO 
10 FT IN S SWELL. ELSEWHERE WITHIN 31N73W TO 31N76W TO 30N77W TO 
30N80W TO 28N79W TO 29N76W TO 31N73W SW WINDS 20 TO 25 KT. SEAS 
TO 8 FT. REMAINDER OF AREA WITHIN 31N79W TO 31N81W TO 31N80.5W TO
30.5N80.5W TO 31N79W NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT IN NE
TO E SWELL.
.48 HOUR FORECAST WITHIN 31N63W TO 31N66W TO 30N69W TO 29N68W TO
29N66W TO 30N65W TO 31N63W SW TO W WINDS 30 TO 35 KT. SEAS 10 TO
12 FT. ELSEWHERE WITHIN 30N62W TO 31N62W TO 30N67W TO 28N74W TO 
28N66W TO 30N62W SW TO W WINDS 20 TO 30 KT. SEAS TO 10 FT. WITHIN
31N69W TO 31N72W TO 30N71W TO 30N70W TO 31N69W N WINDS 20 TO 25 
KT. SEAS 10 TO 12 FT IN E TO SE SWELL. REMAINDER OF AREA WITHIN 
31N66W TO 31N71W TO 31N72W TO 31N76W TO 28N75W TO 30N69W TO 
31N66W WINDS 20 KT OR LESS. CONFUSED SEAS 8 TO 11 FT IN MIXED 
SWELL.

...GULF OF MEXICO GALE WARNING...
.WITHIN 27N91W TO 27N92W TO 27N91W TO 26N90W TO 27N90W TO 27N91W
E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.09 HOUR FORECAST WITHIN 28N90W TO 29N92W TO 29N94W TO 28N94W TO
27N93W TO 28N91W TO 28N90W NE WINDS 25 TO 35 KT. SEAS TO 10 FT 
IN E SWELL. ELSEWHERE WITHIN 30N88W TO 29N91W TO 29N95W TO 27N93W
TO 29N91W TO 28N88W TO 30N88W NE TO E WINDS 20 TO 25 KT. SEAS TO
8 FT. WITHIN 28N88W TO 28N89W TO 27N91W TO 25N92W TO 26N89W TO 
27N88W TO 28N88W S TO SW WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST WITHIN 30.5N86W TO 30.5N87W TO 30N89.5W TO 
29.5N89.5W TO 29.5N88W TO 30N85.5W TO 30.5N86W NE WINDS 20 TO 25 
KT. SEAS TO 10 FT. WITHIN 30N84W TO 29N87W TO 27N88W TO 27N86W 
TO 26N84W TO 27N83W TO 30N84W SW WINDS 20 TO 25 KT. SEAS TO 8 FT.
ELSEWHERE FROM 26N TO 30N BETWEEN 85W AND 94.5W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN MIXED NE AND S SWELL. 
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 30N35W TO 31N35W TO 29N36W TO 30N35W SW WINDS 20 TO
25 KT. SEAS 9 FT IN N SWELL. ELSEWHERE WITHIN 31N35W TO 31N43W 
TO 31N46W TO 29N39W TO 28N36W TO 28N35W TO 31N35W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN N SWELL. 
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN 18 HOUR FORECAST WITHIN 18N84W TO 18N85W TO 17N86W TO
16N86W TO 16N84W TO 17N84W TO 18N84W SE WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 18N84W TO 19N86W TO 17N87W TO 16N85W TO
17N84W TO 18N84W SE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.