000
FZNT02 KNHC 210307
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU DEC 21 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC THU DEC 21.
24 HOUR FORECAST VALID 0000 UTC FRI DEC 22.
48 HOUR FORECAST VALID 0000 UTC SAT DEC 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC FROM 14N TO 20N E OF 36W WINDS 20 KT OR LESS. SEAS 8 FT IN 
NW SWELL.
.24 HOUR FORECAST FROM 19N TO 27N E OF 36W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED NW AND E SWELL.
.48 HOUR FORECAST FROM 19N TO 27N E OF 38W WINDS 20 KT OR LESS. 
SEAS 8 FT IN NE TO E SWELL.

.ATLC COLD FRONT APPROACH 31N80W. N OF 29N AND W OF 73W SW TO W 
WINDS 20 TO 30 KT. SEAS BUILDING TO 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N64W TO 29N72W TO 28N80W. N 
OF 28N AND E OF FRONT TO 60W SW TO W WINDS 20 TO 30 KT. SEAS TO 
10 FT. N OF FRONT AND W TO 70W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N55W TO 25N65W...THEN 
WEAKENING COLD FRONT TO 25N73W TO 27N77W TO 31N79W. N OF LINE 
FROM 31N56W TO 27N65W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.

.CARIBBEAN 24 HOUR FORECAST N OF 18.5N AND E OF 
75.5W...INCLUDING WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS 
LESS THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 18N TO 20N BETWEEN 73W AND 
80W...INCLUDING WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS 
LESS THAN 8 FT.

.CARIBBEAN N OF 10N AND S OF LINE FROM 18N70W TO 
14N80W...INCLUDING WITHIN 90 NM OF COAST OF COLOMBIA...NE TO E 
WINDS 20 TO 30 KT. SEAS TO 12 FT...HIGHEST NEAR 11.5N75.5W. 
ELSEWHERE S OF LINE FROM 16N74W TO 13N83W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN NE TO E SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.