270 
FZNT02 KNHC 181517
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON DEC 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MON DEC 18.
24 HOUR FORECAST VALID 1200 UTC TUE DEC 19.
48 HOUR FORECAST VALID 1200 UTC WED DEC 20.

.WARNINGS.

...ATLC GALE WARNING...
.COLD FRONT FROM 31N71W TO 20N75W. N OF 27N W OF FRONT W TO NW 
WINDS 20 TO 30 KT. SEAS 12 TO 20 FT IN SE SWELL. N OF 27N E OF 
FRONT TO 67W SE TO S WINDS 30 TO 40 KT. SEAS 12 TO 18 FT. 
ELSEWHERE N OF 20N E OF FRONT TO 60W E TO SE WINDS 20 TO 30 KT. 
SEAS 10 TO 14 FT. REMAINDER OF AREA N OF 17N W OF 60W... 
INCLUDING ATLANTIC EXPOSURES...AND E OF THE BAHAMA...WINDS 20 
KT OR LESS. SEAS 8 TO 12 FT IN N TO NE SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N68W TO 20N71W. N OF 25N E 
OF FRONT TO 60W SE TO S WINDS 20 TO 25 KT. SEAS 10 TO 15 FT IN 
NE SWELL. ELSEWHERE N OF 17N W OF 60W AND E OF THE BAHAMAS WINDS 
20 KT OR LESS. SEAS 8 TO 12 FT IN NE SWELL...EXCEPT 12 TO 14 FT 
N OF 27N W OF FRONT TO 72W. 
.48 HOUR FORECAST COLD FRONT FROM 31N62W TO 19N68W. W OF FRONT 
TO A LINE FROM 31N77W TO 27N80W N TO NE WINDS 20 TO 25 KT. SEAS 
9 TO 12 FT IN NE SWELL. N OF 27N E OF FRONT TO 46W E TO SE WINDS 
20 TO 25 KT. SEAS 12 TO 16 FT IN NE SWELL. N OF 20N E OF 38W SE 
WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN N SWELL...EXCEPT 12 TO 13 
FT N OF 29N. ELSEWHERE N OF 18N E OF 48W AND N OF 12N W OF 48W 
AND E OF THE BAHAMAS WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N 
TO NE SWELL.  

...ATLC GALE WARNING...
.E OF 55W AND NW OF A LINE FROM 31N37W TO 25N55W NE WINDS 30 TO 
40 KT. SEAS 12 TO 18 FT IN N TO NE SWELL. ELSEWHERE NW OF A LINE 
FROM 31N38W TO 21N55W TO 21N60W NE TO E WINDS 20 TO 30 KT. SEAS 
10 TO 14 FT. FROM 21N TO 26N BETWEEN 40W AND 43W SE TO S WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT. REMAINDER OF AREA NW OF A LINE FROM 
31N36W TO 22N50W TO 17N60W...INCLUDING IN ATLANTIC EXPOSURES AND 
PASSAGES...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN NW 
SWELL.
.24 HOUR FORECAST N OF 27N BETWEEN 45W AND 55W E WINDS 30 TO 35 
KT. SEAS 18 TO 21 FT IN NE SWELL. ELSEWHERE NW OF A LINE FROM 
30N35W TO 22N50W TO 25N55W TO 27N60W NE TO E WINDS 20 TO 30 KT. 
SEAS 12 TO 18 FT IN NE SWELL. REMAINDER OF AREA N OF A LINE FROM 
20N35W TO 18N50W TO 17N60W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
IN N TO NE SWELL.
.48 HOUR FORECAST CONDITIONS MERGED.

.SYNOPSIS AND FORECAST.

.CARIBBEAN STATIONARY FRONT FROM 20N75W TO 10N80W. W OF FRONT 
NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST COLD FRONT FROM 20N71W TO 10N79W. W OF FRONT 
TO A LINE FROM 20N80W TO 16N85W...INCLUDING THE WINDWARD 
PASSAGE...N WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST COLD FRONT FROM 19N68W TO 10N79W. W OF FRONT 
TO 83W..INCLUDING THE WINDWARD PASSAGE...N TO NE WINDS 20 TO 25 
KT. SEAS 8 TO 9 FT.

.GULF OF MEXICO S OF 24N BETWEEN 84W AND 88W...INCLUDING THE 
YUCATAN CHANNEL...WINDS 20 KT OR LESS. SEAS 8 IN NW SWELL. 
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST FROM 23N TO 26N E OF 84W...INCLUDING THE 
STRAITS OF FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.