000
FZNT02 KNHC 251457
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED OCT 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC WED OCT 25.
24 HOUR FORECAST VALID 1200 UTC THU OCT 26.
48 HOUR FORECAST VALID 1200 UTC FRI OCT 27.

.WARNINGS.

...ATLANTIC HURRICANE WARNING...
.HURRICANE TAMMY NEAR 26.6N 59.3W 965 MB AT 1500 UTC OCT 25
MOVING NE OR 045 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 90 KT
GUSTS 110 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM N
SEMICIRCLE...150 NM SE QUADRANT AND 60 NM SW QUADRANT.SEAS 12
FT OR GREATER WITHIN 240 NM NE AND SW QUADRANTS...330 NM NW
QUADRANT AND 210 NM SE QUADRANT WITH SEAS TO 31 FT. ELSEWHERE 
WITHIN 31N55W TO 31N65W TO 24N64W TO 24N55W TO 31N55W WINDS 20 TO
33 KT. SEAS 12 FT. REMAINDER AREA WITHIN 24N55W TO 25N63W TO 
24N64W TO 21N64W TO 21N58W TO 24N55W WINDS 20 KT OR LESS. SEAS 8 
TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 29.8N 
59.5W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM 
FORCE WINDS WITHIN 210 NM NE QUADRANT...150 NM SE QUADRANT...100 
NM SW QUADRANT...AND 170 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 420 NM N SEMICIRCLE...270 NM SE QUADRANT...AND 480 NM SW 
QUADRANT WITH SEAS TO 32 FT. ELSEWHERE WITHIN 31N53W TO 31N64W TO
27N64W TO 26N56W TO 28N54W TO 31N53W WINDS 20 TO 33 KT. SEAS 
DESCRIBED ABOVE. REMAINDER AREA WITHIN 31N50W TO 28N64W TO 19N64W
TO 24N53W TO 31N50W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 31.0N 
61.8W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM 
FORCE WINDS WITHIN 150 NM NE QUADRANT...110 NM SE QUADRANT...100 
NM SW QUADRANT...AND 160 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 600 NM NE QUADRANT...360 NM SE QUADRANT...660 NM SW 
QUADRANT...AND 420 NM NW QUADRANT WITH SEAS TO 28 FT. ELSEWHERE 
WITHIN 31N58W TO 31N65W TO 29N64W TO 28N62W TO 29N60W TO 31N58W 
WINDS 20 TO 33 KT. SEAS DESCRIBED ABOVE. REMAINDER AREA WITHIN 
31N45W TO 30N65W TO 21N65W TO 17N62W TO 19N57W TO 26N53W TO 
31N45W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 31.4N 
62.7W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 31.7N 
63.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 31.9N 
63.0W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.

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

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N66W TO 30N80W TO 26N80W TO 24N75W TO 24N66W TO
31N66W NE WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 
24N66W TO 25N76W TO 24N75W TO 21N70W TO 20N67W TO 21N66W TO 
24N66W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 31N66W TO 31N81W TO 26N80W TO 22N74W TO
27N66W TO 31N66W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. 
ELSEWHERE WITHIN 28N66W TO 25N75W TO 23N74W TO 19N69W TO 19N66W 
TO 28N66W WINDS 20 KT OR LESS. SEAS 8 TO 13 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 31N65W TO 31N73W TO 29N79W TO 25N78W TO
28N66W TO 31N65W NE WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. 
ELSEWHERE WITHIN 31N66W TO 30N80W TO 28N80W TO 19N68W TO 21N65W 
TO 31N66W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NE SWELL.

.ATLC 36 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 29N41W TO
29N37W TO 30N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
NW SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 31N41W TO 27N40W TO 27N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.

.CARIBBEAN WITHIN 21N78W TO 20N80W TO 20N81W TO 19N80W TO 19N79W
TO 20N77W TO 21N78W...INCLUDING BETWEEN CUBA AND JAMAICA... NE
TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. WITHIN 20N74W TO
20N76W TO 19N76W TO 18N76W TO 18N75W TO 19N74W TO
20N74W NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 20N78W TO 21N81W TO 19N81W TO 19N80W TO
19N78W TO 20N78W...INCLUDING BETWEEN CUBA AND JAMAICA... NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.GULF OF MEXICO WITHIN 24N80W TO 26N82W TO 25N84W TO 24N85W TO 
23N84W TO 23N81W TO 24N80W...INCLUDING STRAITS OF FLORIDA... NE 
TO E WINDS 20 TO 25 KT. SEAS 8 FT. 
.24 HOUR FORECAST WITHIN 27N83W TO 28N86W TO 24N86W TO 23N85W TO
24N81W TO 27N83W E WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST WITHIN 25N80W TO 26N82W TO 25N84W TO 24N83W TO
23N82W TO 24N80W TO 25N80W...INCLUDING STRAITS OF FLORIDA... NE 
TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.