471 
FZNT02 KNHC 202021
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED DEC 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 20.
24 HOUR FORECAST VALID 1800 UTC THU DEC 21.
48 HOUR FORECAST VALID 1800 UTC FRI DEC 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N63W TO 21N71W. W OF FRONT TO A LINE 
31N72W TO 27N77W N TO NE WINDS 20 TO 25 KT. SEAS 9 TO 13 FT. N 
OF 25N BETWEEN 45W AND 58W E TO SE WINDS 20 TO 30 KT. SEAS 12 TO 
16 FT IN NE SWELL. SE OF A LINE FROM 31N76W TO 27N80W TO ANOTHER 
LINE FROM 15N35W TO 18N45W TO 12N55W TO 15N61W WINDS 20 KT OR 
LESS. SEAS 8 TO 12 FT IN N TO NE SWELL...EXCEPT 12 TO 14 FT N OF 
25N BETWEEN 45W AND 61W. 
.24 HOUR FORECAST COLD FRONT FROM 31N54W TO 27N55W TO 19N61W. N 
OF 27N W OF FRONT TO 62W NW TO N WINDS 20 TO 25 KT. SEAS 9 TO 12 
FT IN NE TO E SWELL. N OF 26N E OF FRONT TO 46W SE WINDS 20 TO 
25 KT. SEAS 9 TO 11 FT. ELSEWHERE N OF 19N W OF FRONT TO 78W AND 
E OF THE BAHAMAS WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N TO NE 
SWELL...EXCEPT 12 TO 13 FT N OF 29N BETWEEN 60W AND 65W. 
REMAINDER OF THE AREA N OF 21 AND E OF 47W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN N TO NE SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N48W TO 22N55W THEN 
STATIONARY TO 19N61W. N OF 19N W OF FRONT TO 76W AND E OF THE 
BAHAMAS WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL... 
EXCEPT 11 TO 13 FT N OF 29N BETWEEN 55W AND 63W.  ELSEWHERE E OF 
A LINE FROM 28N50W TO 20N41W TO 06N52W WINDS 20 KT OR LESS. SEAS 
8 TO 9 FT IN N TO NE SWELL.

.ATLC N OF 19N E OF 38W SE WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. S 
OF 12N E OF 38W E WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST N OF 30N BETWEEN 38W AND 42W SE WINDS 20 TO 25 
KT. SEAS 9 TO 10 FT. 
.48 HOUR FORECAST CONDITIONS MERGED WITH PARAGRAPH ABOVE.

.CARIBBEAN WEAKENING STATIONARY FRONT FROM 20N71W TO 10N77W. W 
OF FRONT TO TO 83W...INCLUDING THE WINDWARD PASSAGE...NE WINDS 
20 TO 25 KT. SEAS 8 TO 10 FT. 
.24 HOUR FORECAST FRONT DISSIPATED. N OF 18N BETWEEN 73W AND 
83W...INCLUDING THE WINDWARD PASSAGE NE WINDS 20 TO 25 KT. SEAS 
TO 8 FT. FROM 11N TO 15N W OF 81W N WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.48 HOUR FORECAST IN THE WINDWARD PASSAGE NE WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT. FROM 10N TO 15N BETWEEN 72W AND 78W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT...HIGHER NEAR THE COAST OF 
COLOMBIA. FROM 15N TO 17.5N BETWEEN 70W AND 76W NE TO E WINDS 20 
TO 25 KT. SEAS TO 8 FT. FROM 16N TO 18N BETWEEN 80W AND 83W NE 
TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.GULF OF MEXICO FROM 23N TO 25N E OF 84W...INCLUDING STRAITS OF 
FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS BUILDING TO 8 TO 9 FT.
.24 HOUR FORECAST FROM 23N TO 25N E OF 87W...INCLUDING STRAITS 
OF FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 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/HN. NATIONAL HURRICANE CENTER.