000
FZNT02 KNHC 260918
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU OCT 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU OCT 26.
24 HOUR FORECAST VALID 0600 UTC FRI OCT 27.
48 HOUR FORECAST VALID 0600 UTC SAT OCT 28.

.WARNINGS.

...ATLC HURRICANE FORCE WIND WARNING...
.POST-TROPICAL CYCLONE TAMMY NEAR 30.5N 58.4W 973 MB AT 0900 UTC
OCT 26 MOVING N OR 355 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 75 
KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 170 NM NE 
QUADRANT...130 NM SE QUADRANT...100 NM SW QUADRANT...AND 160 NM 
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM E SEMICIRCLE AND
600 NM W SEMICIRCLE WITH SEAS TO 32 FT. ELSEWHERE OVER FORECAST 
WATERS...WITHIN 31N52W TO 29N57W TO 31N65W TO 26N65W TO 27N61W TO
25N54W TO 31N52W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER 
OF AREA...WITHIN 28N49W TO 31N52W TO 27N56W TO 27N65W TO 19N64W 
TO 22N54W TO 28N49W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 31.5N 
61.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM 
FORCE WINDS WITHIN 100 NM S SEMICIRCLE...160 NM NE QUADRANT AND 
170 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 570 NM NE 
QUADRANT...420 NM SE QUADRANT...660 NM SW QUADRANT...AND 510 NM 
NW QUADRANT WITH SEAS TO 29 FT. ELSEWHERE OVER FORECAST 
WATERS...WITHIN 31N56W TO 30N61W TO 31N65W TO 28N64W TO 28N60W TO
28N58W TO 31N56W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER 
OF AREA...WITHIN 31N35W TO 31N57W TO 28N65W TO 19N65W TO 19N58W 
TO 26N50W TO 31N35W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL TAMMY NEAR 32.3N 62.1W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM N SEMICIRCLE...90 NM SE QUADRANT AND 80 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 360 NM NE QUADRANT...300 
NM SE QUADRANT...690 NM SW QUADRANT...AN 420 NM NW QUADRANT WITH 
SEAS TO 19 FT. ELSEWHERE OVER FORECAST WATERS...WITHIN 31N60W TO 
31N65W TO 30N65W TO 30N63W TO 30N61W TO 30N60W TO 31N60W WINDS 20
TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 31N65W TO
18N64W TO 13N55W TO 18N54W TO 31N65W...INCLUDING IN ATLANTIC 
EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN 
MIXED SWELL.
.72 HOUR FORECAST POST-TROPICAL TAMMY NEAR 32.4N 60.4W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL TAMMY NEAR 32.3N 59.6W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST POST-TROPICAL TAMMY NEAR 32.2N 58.4W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N65W TO 29N80W TO 23N80W TO 21N72W TO 26N65W TO
31N65W...INCLUDING ATLANTIC EXPOSURES...NE WINDS 20 TO 30 KT.
SEAS 10 TO 12 FT. ELSEWHERE...WITHIN 31N65W TO 31N81W TO
23N80W TO 20N65W TO 31N65W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT 
IN NE SWELL.
.24 HOUR FORECAST WITHIN 31N66W TO 31N72W TO 27N78W TO 24N80W TO
28N65W TO 31N66W...INCLUDING ATLANTIC EXPOSURES...NE WINDS 20 TO
30 KT. SEAS 10 TO 12 FT. ELSEWHERE...WITHIN 31N66W TO 31N81W TO 
24N80W TO 19N66W TO 31N66W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
IN NE SWELL.
.48 HOUR FORECAST WITHIN 29N66W TO 31N66W TO 31N73W TO 27N80W TO
24N80W TO 25N73W TO 29N66W...INCLUDING ATLANTIC EXPOSURES...NE 
WINDS 20 TO 30 KT. SEAS 10 TO 12 FT IN NE SWELL. 
ELSEWHERE...WITHIN 31N66W TO 31N80W TO 24N80W TO 18N67W TO 22N65W
TO 31N66W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL.

.CARIBBEAN WITHIN 20N78W TO 21N80W TO 21N82W TO 20N79W TO 18N76W
TO 20N74W TO 20N78W...INCLUDING BETWEEN CUBA AND JAMAICA...NE TO
E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE.

.GULF OF MEXICO WITHIN 26N82W TO 26N85W TO 25N87W TO 23N87W TO
23N85W TO 23N81W TO 26N82W...INCLUDING STRAITS OF FLORIDA...E 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 25N81W TO 25N85W TO 25N87W TO 22N86W TO
23N83W TO 23N81W TO 25N81W...INCLUDING STRAITS OF FLORIDA...E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN 24N81W TO 25N82W TO 24N84W TO 23N84W TO
23N81W TO 24N81W...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 KONARIK. NATIONAL HURRICANE CENTER.