000
FZNT02 KNHC 221535
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN OCT 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SUN OCT 22.
24 HOUR FORECAST VALID 1200 UTC MON OCT 23.
48 HOUR FORECAST VALID 1200 UTC TUE OCT 24.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE TAMMY NEAR 19.1N 63.0W 992 MB AT 1500 UTC OCT 22
MOVING NW OR 320 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE
QUADRANT...120 NM SE QUADRANT...30 NM SW QUADRANT...AND 70 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N SEMICIRCLE...150
NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 25 FT. 
ELSEWHERE WITHIN 20N59W TO 22N61W TO 22N63W TO 19N64W TO 17N62W 
TO 17N60W TO 20N59W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. 
REMAINDER OF AREA WITHIN 24N59W TO 25N64W TO 20N65W TO 16N61W TO 
19N57W TO 24N59W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL.
.24 HOUR FORECAST HURRICANE TAMMY NEAR 21.4N 63.9W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM NE QUADRANT...100 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 150 NM N AND 90 NM S SEMICIRCLES WITH SEAS TO 25 FT.
ELSEWHERE WITHIN 22N60W TO 24N63W TO 24N66W TO 21N66W TO
19N64W TO 19N62W TO 22N60W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT.
REMAINDER OF AREA WITHIN 25N60W TO 26N66W TO 23N69W TO 20N68W TO
19N61W TO 21N60W TO 25N60W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE TAMMY NEAR 23.0N 62.9W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE QUADRANT...110 NM SE QUADRANT...40 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 150 NM N AND 75 NM S SEMICIRCLES WITH SEAS TO 25 FT.
ELSEWHERE WITHIN 24N60W TO 25N64W TO 24N65W TO 21N64W TO
21N61W TO 24N60W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA WITHIN 30N61W TO 31N67W TO 27N76W TO 21N66W TO 21N61W TO
30N61W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.72 HOUR FORECAST HURRICANE TAMMY NEAR 24.5N 61.0W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE TAMMY NEAR 27.5N 60.5W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL TAMMY NEAR 30.0N 
63.9W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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 31N59W TO 31N72W TO 27N71W TO 28N68W TO 31N59W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W SWELL.
.24 HOUR FORECAST WITHIN 31N56W TO 31N62W TO 29N61W TO 30N57W TO
31N56W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN W SWELL.

.ATLC TROUGH FROM 14N50W TO 07N53W. WITHIN 16N50W TO 15N53W TO 
13N52W TO 13N50W TO 16N50W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN E TO SE SWELL. 
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN 24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL
CYCLONE...NEAR 12N82W 1009 MB. WITHIN 14N82W TO 13N83W TO 11N83W
TO 11N81W TO 14N82W E TO SE WINDS 20 TO 30 KT. SEAS LESS THAN 8 
FT. 
.48 HOUR FORECAST LOW PRESSURE INLAND. OVER FORECAST WATERS CONDITIONS
IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO 36 HOUR FORECAST WITHIN 28N95W TO 28N97W TO
26N97W TO 26N95W TO 28N95W SE WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.