000
FZNT02 KNHC 202047
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT JAN 20 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT JAN 20.
24 HOUR FORECAST VALID 1800 UTC SUN JAN 21.
48 HOUR FORECAST VALID 1800 UTC MON JAN 22.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.CARIBBEAN FROM 10N TO 15N BETWEEN 70W AND 78W NE TO E WINDS 20 
TO 30 KT. SEAS TO 11 FT...HIGHEST NEAR 12N77W.
.06 HOUR FORECAST FROM 11N TO 12N BETWEEN 74W AND 76W NE WINDS 
30 TO 35 KT. SEAS 10 TO 14 FT. ELSEWHERE FROM 10N TO 17N BETWEEN 
69W AND 79W NE TO E WINDS 20 TO 30 KT. SEAS TO 10 FT. FROM 10N 
TO 16N BETWEEN 79W AND 82W WINDS 20 KT OR LESS. SEAS TO 10 FT IN 
E SWELL. 
.18 HOUR FORECAST FROM 10N TO 13N BETWEEN 74W AND 77W NE WINDS 
25 TO 30 KT. SEAS 10 TO 14 FT. ELSEWHERE FROM 10.5N TO 18N 
BETWEEN 69W AND 80W NE TO E WINDS 20 TO 30 KT. SEAS TO 11 FT. 
FROM 10N TO 16N BETWEEN 80W AND 83W WINDS 20 KT OR LESS. SEAS TO 
10 FT IN E SWELL.
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST FROM 11N TO 16N BETWEEN 71W AND 79W NE TO E 
WINDS 20 TO 25 KT. SEAS TO 12 FT...HIGHEST NEAR 12N77W. 
ELSEWHERE FROM 09.5N TO 17N BETWEEN 70W AND 82W WINDS 20 KT OR 
LESS. SEAS TO 11 FT IN E SWELL.  

.SYNOPSIS AND FORECAST.
 
.ATLC COLD FRONT FROM 31N46W TO 25N54W TO 21N63W THEN 
DISSIPATING STATIONARY FRONT TO 20N74W. S OF 21N BETWEEN 71W AND 
74W...INCLUDING ATLC APPROACH TO WINDWARD PASSAGE...NE WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. N OF FRONT AND E OF LINE FROM 
21N70W TO 23N73W TO 25N64W TO 31N62W WINDS 20 KT OR LESS. SEAS 8 
TO 12 FT PRIMARILY IN NW SWELL...HIGHEST NEAR 31N49W.  
.24 HOUR FORECAST WEAKENING STATIONARY FRONT FROM 31N39W TO 
26N45W TO 23N57W TO 21N65W. S OF 21N BETWEEN 71W AND 
75W...INCLUDING ATLC APPROACH TO WINDWARD PASSAGE...NE WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. N OF FRONT AND E OF LINE FROM 
24N57W TO 31N49W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT PRIMARILY 
IN NW SWELL.  
.30 HOUR FORECAST TROUGH FROM 31N39W TO 26N42W...SECOND TROUGH 
FROM 25N75W TO 22N78W. S OF 25N BETWEEN 75W AND 80W NE TO E 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. N OF 27N AND E OF 46W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST TROUGH FROM 31N38W TO 23N41W. SECOND TROUGH 
DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC FROM 11N TO 16N E OF 44W WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED NW AND NE SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 90 NM OF 12N49W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED NW AND NE SWELL.
.24 HOUR FORECAST FROM 10N TO 14N BETWEEN 49W AND 59W WINDS 20 
KT OR LESS. SEAS SEAS 8 FT IN MIXED NW AND NE SWELL.
.48 HOUR FORECAST FROM 09N TO 16N BETWEEN 48W AND 59W WINDS 20 
KT OR LESS. SEAS SEAS 8 TO 8 FT IN MIXED NW AND NE SWELL.

.ATLC 24 HOUR FORECAST TROUGH FROM 22N78W TO 25N76W. FROM 22N TO 
25N BETWEEN 75W AND 80W NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 
FT.
.48 HOUR FORECAST TROUGH DISSIPATED. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN STATIONARY FRONT FROM 20N75W TO 19N80W. N OF LINE 
FROM 16N71W TO 16N74W...INCLUDING CARIBBEAN APPROACH TO WINDWARD 
PASSAGE...AND N OF LINE FROM 20N79W TO 20N83W NE WINDS 20 TO 25 
KT. SEAS TO 8 FT. 
.18 HOUR FORECAST FRONT DISSIPATED. CONDITIONS MERGED.

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

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.