000
FZNT02 KNHC 210308
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
0430 UTC FRI DEC 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FRI DEC 21.
24 HOUR FORECAST VALID 0000 UTC SAT DEC 22.
48 HOUR FORECAST VALID 0000 UTC SUN DEC 23.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC N OF 27N W OF 77W S TO SW WINDS 30 TO 35 KT. SEAS 9 TO 15 
FT. ELSEWHERE NW OF LINE FROM 31N67W TO 23N80W S WINDS 20 TO 30 
KT. SEAS 8 TO 11 FT N OF 26N. SCATTERED TSTMS IN LINES N OF 26N 
W OF 75W.
.06 HOUR FORECAST COLD FRONT APPROACH SE UNITED STATES COAST.
N OF 27N BETWEEN 75W AND 80W AND S OF 27N W OF 77W S TO SW WINDS 
30 TO 35 KT. SEAS 11 TO 17 FT. ELSEWHERE NW OF A LINE FROM 
31N68W TO 27N67W TO 22N79W S WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
SCATTERED TSTMS IN LINES WITHIN 240 NM E OF FRONT.
.24 HOUR FORECAST COLD FRONT FROM 31N77W TO 23N80W. W OF LINE 
FROM 31N70W TO 23N80W SW WINDS 30 TO 40 KT. SEAS 12 TO 23 FT... 
HIGHEST SEAS AT 31N76W. ELSEWHERE NW OF A LINE FROM 31N63W TO 
26N70W TO 23N78W S TO SW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
SCATTERED TSTMS IN LINES WITHIN 360 NM E OF FRONT.
.36 HOUR FORECAST COLD FRONT FROM 31N69W TO 21N76W. N OF 27.5N W 
OF 63W SW TO W WINDS 20 TO 30 KT. SEAS 8 TO 21 FT WITH HIGHEST 
SEAS AT 31N72W. OPEN WATERS ELSEWHERE W OF FRONT WINDS 20 KT OR 
LESS. SEAS TO 11 FT IN MIXED SWELL. SCATTERED TSTMS IN LINES 
WITHIN 240 NM E OF FRONT. 
.48 HOUR FORECAST COLD FRONT FROM 31N64W TO 20N74W. WITHIN AREA 
BOUNDED BY A LINE 31N76W TO 31N62W TO 24N70W TO 31N76W WINDS 20 
KT OR LESS. SEAS 8 TO 14 FT PRIMARILY IN MIXED SWELL...HIGHEST 
SEAS AT 31N67W.
 
...GULF OF MEXICO GALE WARNING...
.GULF OF MEXICO COLD FRONT FROM 30N85W TO 20N86W. E OF FRONT S 
TO SW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. FROM 23N TO 29N 
BETWEEN 87W AND 95W NW WINDS 30 TO 35 KT. SEAS 11 TO 16 FT. 
ELSEWHERE W OF FRONT NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 13 FT 
N OF 20N. SCATTERED TSTMS IN LINES E OF FRONT. 
.12 HOUR FORECAST COLD FRONT FROM 30N83W TO 21N84W. N OF 24N E 
OF 92W W TO NW WINDS 30 TO 35 KT. SEAS 13 TO 20 FT. ELSEWHERE E 
OF FRONT SW WINDS 20 TO 30 KT. SEAS 8 TO 18 FT. ELSEWHERE W OF 
FRONT NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. SCATTERED 
TSTMS ACROSS STRAITS OF FLORIDA. 
.24 HOUR FORECAST FRONT E OF AREA. E OF 90W W TO NW WINDS 20 TO 
30 KT. SEAS 12 TO 20 FT. ELSEWHERE E OF 94W WINDS 20 KT OR LESS. 
SEAS TO 11 FT PRIMARILY IN NW SWELL.
.36 HOUR FORECAST E OF 89W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT 
PRIMARILY IN NW SWELL. 
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N41W TO 28N44W THEN STATIONARY TO 24N60W 
TO 27N70W. WITHIN AREA BOUNDED BY A LINE FROM 31N56W TO 31N35W 
TO 28N35W TO 21N55W TO 25N60W TO 31N56W WINDS 20 KT OR LESS. 
SEAS TO 11 FT PRIMARILY IN NW SWELL...HIGHEST SEAS AT 31N43W.
.24 HOUR FORECAST FRONTAL TROUGH FROM 31N37W TO 25N42W. WITHIN 
AREA BOUNDED BY A LINE FROM 31N50W TO 31N35W TO 18N35W TO 16N50W 
TO 26N55W TO 31N50W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY 
IN NW SWELL...HIGHEST SEAS AT 31N37W.
.48 HOUR FORECAST TROUGH DIFFUSE. WITHIN AREA BOUNDED BY A LINE 
FROM 31N44W TO 31N35W TO 27N35W TO 31N44W WINDS 20 KT OR LESS. 
SEAS TO 8 FT PRIMARILY IN NW SWELL.

.ATLC S OF 08N BETWEEN 43W AND 52W WINDS 20 KT OR LESS. SEAS TO 
9 FT IN MIXED N AND SE SWELL. 
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 10.5N TO 16N BETWEEN 69W AND 78W NE TO E WINDS 
20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST S OF 14N BETWEEN 70W AND 77W NE TO E WINDS 20 
TO 30 KT. SEAS TO 9 FT.
.36 HOUR FORECAST FROM 10N TO 14N BETWEEN 72W AND 79W NE WINDS 
20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST S OF 14N BETWEEN 74W AND 80W NE WINDS 20 TO 30 
KT. SEAS TO 11 FT.

.CARIBBEAN COLD FRONT ACROSS YUCATAN CHANNEL. N OF 19N E OF 
FRONT TO 80W S TO SW WINDS 20 TO 25 KT. SEAS TO 9 FT. NW OF 
FRONT NW WINDS 20 TO 25 KT. SEAS TO 9 FT. 
.12 HOUR FORECAST COLD FRONT FROM 22N81W TO 16N84W. N OF 20N E 
OF FRONT TO 79W SW WINDS 20 TO 25 KT. SEAS TO 8 FT. W OF FRONT 
NW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT N OF 20N W OF FRONT.
SCATTERED TSTMS IN LINES E OF FRONT. 
.24 HOUR FORECAST COLD FRONT FROM 23N80W TO 11N83W. S OF 16N 
BETWEEN 80W AND 83W N WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
ELSEWHERE W OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 13 
FT...HIGHEST SEAS IN YUCATAN BASIN. 
.48 HOUR FORECAST STATIONARY FRONT FROM 20N74W TO 09N80W. S OF 
18N BETWEEN 79W AND 83W N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT.

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

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.