791 
FZNT02 KNHC 172044
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 TUE OCT 17.
24 HOUR FORECAST VALID 1800 UTC WED OCT 18.
48 HOUR FORECAST VALID 1800 UTC THU OCT 19.

.WARNINGS.

...ATLC GALE WARNING...
.LOW PRES NEAR 11.5N43.5W 1010 MB. FROM 12N TO 18N BETWEEN 40W 
AND 46W E TO SE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.12 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
12N46.5W 1008 MB. WITHIN 90 E SEMICIRCLE WINDS 30 TO 35 KT. SEAS 
9 TO 12 FT. ELSEWHERE WITHIN 150 NM N SEMICIRCLE AND 180 NM SE 
QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. REMAINDER OF THE 
AREA FROM 15N TO 20N BETWEEN 43W AND 52W E WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
12.5N49.5W 1005 MB. WITHIN 120 NM NE...90 SE AND 60 NM NW 
QUADRANTS WINDS 30 TO 40 KT. SEAS 10 TO 14 FT. ELSEWHERE WITHIN 
150 NM N SEMICIRCLE...180 NM SE QUADRANT AND 60 NM SW QUADRANT 
WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. REMAINDER OF THE AREA FROM 
15N TO 20N BETWEEN 45W AND 55W E WINDS 20 TO 25 KT. SEAS 8 TO 
10 FT. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13.5N54.5W 1002 MB. WITHIN 120 NM NE...90 NM SE...30 NM SW AND 
75 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 18 FT. 
ELSEWHERE WITHIN 180 NM N SEMICIRCLE...210 NM SE QUADRANT AND 90 
NM SW QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER OF 
THE AREA FROM 16N TO 22N BETWEEN 45W AND 60W E WINDS 20 TO 25 
KT. SEAS 8 TO 11 FT. 

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT FROM 31N64W TO 21N77W. LOW PRES N OF AREA 
NEAR 32N68W 1009 MB. N OF 29N BETWEEN 68W AND 74W SW WINDS 20 TO 
25 KT...EXCEPT W TO NW WINDS BETWEEN 71W AND 74W. SEAS TO 8 FT. 
N OF 30N E OF FRONT TO 60W WINDS 20 KT OR LESS. SEAS 8 FT IN W 
TO NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN 18 HOUR FORECAST FROM 18N TO 20N BETWEEN 81W AND 
85W...AND FROM 16N TO 18N BETWEEN 84W AND 86W N TO NE WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF MEXICO S OF 21N W OF 93W NW TO N WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT.  
.06 HOUR FORECAST 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.