000
FZNT02 KNHC 182116
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED OCT 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED OCT 18.
24 HOUR FORECAST VALID 1800 UTC THU OCT 19.
48 HOUR FORECAST VALID 1800 UTC FRI OCT 20.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM TAMMY NEAR 13.0N 51.7W 1007 MB AT 2100 UTC OCT 
18 MOVING W OR 275 DEG AT 20 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER 
EXCEPT 120 NM NE QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM OF 
CENTER EXCEPT 120 NM NE QUADRANT WITH SEAS TO 15 FT. ELSEWHERE 
WITHIN 150 NM N SEMICIRCLE AND 180 NM SE QUADRANT WINDS 20 TO 33 
KT. SEAS 9 TO 12 FT. REMAINDER OF AREA FROM 15N TO 22N BETWEEN 
44W AND 58W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST TROPICAL STORM TAMMY NEAR 13.5N 55.9W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM NW AND SE QUADRANTS...120 NM NE QUADRANT AND 20 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER... 
EXCEPT 120 NM NE QUADRANT WITH SEAS TO 18 FT. ELSEWHERE WITHIN 
150 NM N SEMICIRCLE...180 NM SE QUADRANT AND 60 NM SW QUADRANT 
WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF THE AREA FROM 
16N TO 19N BETWEEN 50W AND 60W E TO SE WINDS 20 TO 25 KT. SEAS 8 
TO 11 FT. ELSEWHERE FROM 11N TO 23N BETWEEN 50W AND 64W WINDS 20 
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM TAMMY NEAR 15.0N 60.2W. MAXIMUM 
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE QUADRANT...120 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
90 NM OF CENTER...EXCEPT 120 SE QUADRANT WITH SEAS TO 22 FT. 
ELSEWHERE WITHIN 180 NM OF CENTER...EXCEPT 150 NM SW QUADRANT 
WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF THE AREA FROM 
10N TO 22N BETWEEN 51W AND 66W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM TAMMY NEAR 17.5N 62.7W. MAXIMUM 
SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM TAMMY NEAR 21.4N 63.4W. MAXIMUM 
SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM TAMMY NEAR 26.1N 60.2W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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 STATIONARY FRONT FROM 31N64W TO 21N77W. N OF 27N W OF 
FRONT TO 70W N WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT. 
.06 HOUR FORECAST COLD FRONT FROM 31N60W TO 27N65W THEN 
STATIONARY TO NEAR 21N76W. N OF 27N WITHIN 60 NM W OF FRONT N TO 
NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N60W TO 21N76W. WINDS 
20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN STATIONARY FRONT FROM 21N76W TO 16N84W. W OF FRONT TO 
85W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.06 HOUR FORECAST STATIONARY FRONT IN SAME LOCATION. S OF 18N W 
OF FRONT NE WINDS 20 TO 25 KT. SEAS 8 FT.  
.24 HOUR FORECAST STATIONARY FRONT DISSIPATED. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.