299 
FZNT02 KNHC 172119
HSFAT2

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

.WARNINGS.

...ATLC STORM WARNING...
.LOW PRES N OF AREA WITH COLD FRONT FROM 31N80W TO 23N80W. N OF 
30N E OF FRONT TO 77W SE TO S WINDS 40 TO 50 KT. SEAS 20 TO 26 
FT. ELSEWHERE N OF 26.5N E OF FRONT TO 72W SE TO S WINDS 30 TO 
40 KT. SEAS 12 TO 22 FT. W OF FRONT NW WINDS 20 TO 30 KT. SEAS 9 
TO 12 FT N OF THE BAHAMAS. REMAINDER OF THE AREA N OF 16N W OF 
60W...INCLUDING ATLANTIC EXPOSURES...E TO SE WINDS 20 TO 30 KT. 
SEAS 8 TO 12 FT.  
.06 HOUR FORECAST COLD FRONT FROM 31N77W TO 22N78W. N OF 27N W 
OF FRONT W TO NW WINDS 30 TO 40 KT. SEAS 12 TO 22 FT. N OF 27N E 
OF FRONT TO 70W SE TO S WINDS 30 TO 40 KT. SEAS 12 TO 22 FT. 
ELSEWHERE N OF 15N W OF 60W...INCLUDING ATLANTIC EXPOSURES...E 
TO SE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N69W TO 21N74W. N OF 29N W 
OF FRONT W WINDS 20 TO 25 KT. SEAS 12 TO 18 FT IN E TO SE SWELL. 
N OF 27N E OF FRONT TO 65W SE TO S WINDS 30 TO 40 KT. SEAS 12 TO 
20 FT. FROM 22N TO 27N BETWEEN 65W AND 70W SE WINDS 20 TO 30 KT. 
SEAS 10 TO 14 FT. ELSEWHERE N OF 16N W OF 60W...INCLUDING 
ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NE 
TO E SWELL.
.36 HOUR FORECAST COLD FRONT FROM 31N68W TO 20N72W. N OF 29N W 
OF 77W NW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE W OF 
FRONT WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NE SWELL...EXCEPT 
12 TO 15 FT N OF 27 W OF FRONT TO 74W. N OF 27N E OF FRONT TO 
70W SE TO S WINDS 20 TO 30 KT. SEAS 12 TO 15 FT. ELSEWHERE N OF 
19N E OF FRONT TO 60W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NE 
SWELL. 
.48 HOUR FORECAST COLD FRONT FROM 31N67W TO 20N70W. N OF 18N W 
OF 60W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE TO E SWELL... 
EXCEPT 11 TO 14 FT N OF 27N BETWEEN 60W AND 68W.  

...ATLC GALE WARNING...
.N OF 28N BETWEEN 40W AND 50W NE WINDS 25 TO 35 KT. SEAS 10 TO 
14 FT. ELSEWHERE W OF A LINE FROM 31N35W TO 21N50W TO 16N60W... 
INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...NE WINDS 20 TO 30 
KT. SEAS 8 TO 11 FT.  
.06 HOUR FORECAST E OF 55W AND N OF A LINE FROM 31N40W TO 25N55W 
NE WINDS 30 TO 35 KT. SEAS 12 TO 14 FT. ELSEWHERE NW OF A LINE 
FROM 31N36W TO 20N50W TO 15N60W...INCLUDING IN ATLANTIC 
EXPOSURES AND PASSAGES...NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT 
IN N TO NE SWELL.  
.24 HOUR FORECAST E OF 50W AND NW OF A LINE FROM 31N37W TO 
25N50W NE WINDS 30 TO 35 KT. SEAS 12 TO 20 FT. ELSEWHERE E OF 
60W AND NW OF A LINE FROM 31N36W TO 23N50W TO 22N60W NE TO E 
WINDS 20 TO 30 KT. SEAS 12 TO 17 FT IN N TO NE SWELL. REMAINDER 
OF THE AREA NW OF A LINE FROM 31N35W TO 21N50W TO 16N60W... 
INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN N TO NE SWELL.  
.48 HOUR FORECAST N OF 27N BETWEEN 48W AND 56W E WINDS 30 TO 35 
KT. SEAS 18 TO 21 FT. ELSEWHERE NW OF A LINE FROM 30N35W TO 
22N50W TO 27N59W NE TO E WINDS 20 TO 30 KT. SEAS 12 TO 18 FT IN 
NE SWELL. REMAINDER OF AREA N OF A LINE FROM 21N35W TO 16N50W TO 
18N60W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N TO NE SWELL.

...GULF OF MEXICO GALE WARNING...
.N OF 26N E OF 85W NW TO N WINDS 30 TO 35 KT. SEAS 9 TO 13 FT. 
ELSEWHERE E OF 87W...INCLUDING THE YUCATAN CHANNEL...NW WINDS 20 
TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF THE AREA E OF A LINE 
FROM 29N87W TO 27N93W TO 19N96W WINDS 20 KT OR LESS. SEAS 8 TO 
10 FT IN NW SWELL.
.06 HOUR FORECAST E OF 87W...INCLUDING THE YUCATAN CHANNEL...NW 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE E OF A LINE FROM 
27N87W TO 26N92W TO 22N92W TO 21.5N87W WINDS 20 KT OR LESS. SEAS 
8 TO 10 FT IN NW SWELL.
.18 HOUR FORECAST S OF 24.5N BETWEEN 83W AND 88W...INCLUDING THE 
YUCATAN CHANNEL...WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.CARIBBEAN COLD FRONT FROM 23N82W TO 15N83W. W OF FRONT... 
INCLUDING THE YUCATAN CHANNEL AND GULF OF HONDURAS W TO NW WINDS 
20 TO 25 KT. SEAS TO 8 FT...EXCEPT 8 TO 11 FT IN YUCATAN CHANNEL.
.24 HOUR FORECAST COLD FRONT FROM 21N74W TO 10N80W. FROM 10N TO 
15N W OF FRONT TO 83W N WINDS 20 TO 25 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST COLD FRONT FROM 20N70W TO 10N79W. W OF FRONT 
TO A LINE FROM 18N78W TO 15N83W N WINDS 20 TO 25 KT. SEAS 8 
TO 9 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.