High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 180334
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON DEC 18 2017

CCODE/1:31:04:01:00/AOW/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

SYNOPSIS VALID 0000 UTC DEC 18
24 HOUR FORECAST VALID 0000 UTC DEC 19
48 HOUR FORECAST VALID 0000 UTC DEC 20

.WARNINGS.

...STORM WARNING...
.LOW 62N39W 961 MB MOVING N 30 KT. OVER FORECAST WATERS WITHIN
240 NM E AND 480 NM S AND SE QUADRANTS AND WITHIN 60 NM OF THE E
COAST OF GREENLAND WINDS 45 TO 60 KT. SEAS 20 TO 37 FT EXCEPT 12
TO 22 FT WITHIN 60 NM OF E COAST OF GREENLAND. ELSEWHERE N OF
55N E OF 44W WINDS 30 TO 45 KT. SEAS 9 TO 22 FT.
.24 HOUR FORECAST LOW DISSIPATED INLAND WITH NEW LOW 65N40W 972
MB. BETWEEN 90 NM AND 420 NM S AND SE QUADRANTS WINDS 30 TO 45
KT. SEAS 12 TO 22 FT. ELSEWHERE N OF 58N E OF 47W WINDS 20 TO 30
KT. SEAS 9 TO 14 FT.
.30 HOUR FORECAST LOW 65N38W 974 MB. BETWEEN 90 NM AND 300 NM S
AND SE QUADRANTS WINDS 40 TO 50 KT. SEAS 16 TO 26 FT.
.48 HOUR FORECAST LOW 65N39W 982 MB. BETWEEN 90 NM AND 360 NM S
AND SE QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 20 FT.

...GALE WARNING...
.LOW 55N48W 981 MB MOVING E 15 KT. FROM 50N TO 55N BETWEEN 35W
AND 57W WINDS 25 TO 40 KT. SEAS 10 TO 22 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
57N49W BELOW.

...GALE WARNING...
.LOW 49N35W 992 MB MOVING NE 45 KT. OVER FORECAST WATERS E OF A
LINE FROM 35N42W TO 49N36W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
ELSEWHERE FROM 31N TO 50N E OF 66W WINDS 20 TO 30 KT. SEAS 8 TO
17 FT.
.24 HOUR FORECAST LOW WELL E OF AREA. FROM 31N TO 46N E OF 42W
WIDNS LESS THAN 25 KT. SEAS 9 TO 13 FT.
.48 HOUR CONDITIONS WELL E OF AREA.

...GALE WARNING...
.LOW 60N57W 980 MB MOVING SE 15 KT. OVER FORECAST WATERS W OF A
LINE FROM 55N53W TO 61N58W AND BETWEEN 90 NM AND 300 NM E AND NE
QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 19 FT.
.24 HOUR FORECAST LOW 57N49W 989 MB. WITHIN 480 NM S AND 600 NM
SE QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 18 FT. ELSEWHERE FROM
57N TO 62N BETWEEN 44W AND 62W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 59N36W 997 MB. FROM 52N TO 59N E OF 45W
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 37N64W 1013 MB. FROM 32N TO 38N
BETWEEN 60W AND 72W WINDS 20 TO 30 KT. SEAS TO 9 FT.
.30 HOUR FORECAST LOW 37N60W 1011 MB. WITHIN 180 NM SE AND 240
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST LOW 40N51W 1000 MB. WITHIN 180 NM N AND NE AND
240 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
ELSEWHERE FROM 31N TO 45N BETWEEN 45W AND 56W WINDS 20 TO 30 KT.
SEAS TO 11 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER FORECAST WATERS FROM 47N
TO 50N W OF 61W...AND W OF A LINE FROM 53N53W TO 60N59W TO
67N55W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF LINE
FROM 50N50W TO 57N56W TO 60N59W TO 67N56W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 56N57W TO 60N61W TO 67N56W.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST OVER FORECAST WATERS N OF 35N W OF 58W WINDS
20 TO 30 KT. SEAS TO 9 FT.

.48 HOUR FORECAST WITHIN 420 NM S OF A LINE FROM 60N45W TO
57N56W AREA OF S TO SW WINDS 20 TO 30 KT. SEAS TO 11 FT.

.HIGH 31N70W 1026 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.24 HOUR FORECAST HIGH 42N54W 1022 MB.
.48 HOUR FORECAST HIGH 46N35W 1026 MB.

.FORECASTER KOSIER. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0000 UTC MON DEC 18.
24 HOUR FORECAST VALID 0000 UTC TUE DEC 19.
48 HOUR FORECAST VALID 0000 UTC WED DEC 20.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E WINDS 30 TO 35 KT.
SEAS 12 TO 15 FT. ELSEWHERE FROM 09.5N TO 17.5N BETWEEN 70W AND
83W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30
KT. SEAS 8 TO 13 FT. N OF 14N BETWEEN 64W AND 70W...INCLUDING
CARIBBEAN PASSAGES...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9
FT...EXCEPT LESS THAN 8 FT CARIBBEAN PASSAGES.
.18 HOUR FORECAST FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E
WINDS 25 TO 30 KT. SEAS 10 TO 13 FT. ELSEWHERE FROM 09.5N TO
17.5N BETWEEN 70W AND 82.5W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO
13 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E
WINDS 30 TO 35 KT. SEAS 12 TO 14 FT. ELSEWHERE FROM 09.5N TO
17.5N BETWEEN 70W AND 82.5W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT IN NE TO E SWELL.
.42 HOUR FORECAST FROM 09.5N TO 17.5N BETWEEN 70W AND 82.5W NE
TO E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT IN NE TO E SWELL.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 74W AND 77W NE TO E
WINDS 30 TO 35 KT. SEAS 12 TO 13 FT. ELSEWHERE FROM 09.5N TO
17.5N BETWEEN 70W AND 80W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT IN NE TO E SWELL.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N47W TO 23N65W TO 22N73W. N OF A LINE
FROM 31N42W TO 27N50W TO 25N60W TO 31N63W WINDS 20 KT OR LESS.
SEAS 8 TO 12 FT IN NW SWELL...HIGHEST SEAS N OF 29N.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 31N38W TO 25N50W TO
23N60W. N OF A LINE FROM 30N35W TO 21N50W TO 24N60W TO 31N60W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL...HIGHEST SEAS
N OF 29N.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 31N37W TO 25N50W.
N OF 22N E OF 42W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NW
SWELL.

.ATLC FROM 12N TO 23N E OF 45W WINDS 20 KT OR LESS. SEAS 8 TO 9
FT IN MIXED NE AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC S OF 21N BETWEEN 72W AND 74W...INCLUDING APPROACH TO
WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.CARIBBEAN N OF 18.5N BETWEEN 73W AND 76W...INCLUDING WINDWARD
PASSAGE...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. N OF 18N
BETWEEN 76W AND 83W NE TO E WINDS 20 TO 25 KT. SEAS 8 FT BETWEEN
EASTERN CUBA AND JAMAICA.
.24 HOUR FORECAST N OF 18N BETWEEN 73W AND 83W...INCLUDING
WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS 8 FT BETWEEN
EASTERN CUBA AND JAMAICA.
.48 HOUR FORECAST N OF 18.5N BETWEEN 73W AND 76W...INCLUDING
WINDWARD PASSAGE...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.


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