367=20
FZNT01 KWBC 180410
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU DEC 18 2025
CCODE/2:31:04:01:00/AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS=20
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE=20
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE=20
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.=20
ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE=20
NATIONAL WEATHER SERVICE. EMAIL US AT=20
VOSOPS@NOAA.GOV(LOWERCASE).
FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT
https://urldefense.com/v3/__HTTPS://OCEAN.WEATHER.G= OV/ATL_TAB.PHP__;!!DZ3fjg!4O6Ud-HSi7KvBOjBsjGt6wWV1SqZIxTfDFssx8kD10DUeeYFf= VMT0Nl9q84Ns2ce96_xRApOm9XNniX5JbP49ULq4RI$=20
(ALL LOWERCASE).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0000 UTC DEC 18.=20
24 HOUR FORECAST VALID 0000 UTC DEC 19.
48 HOUR FORECAST VALID 0000 UTC DEC 20.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...=20
.COMPLEX LOW WITH MAIN CENTER E OF THE AREA 59N27W 947 MB MOVING
NE 15 KT. WITHIN 120 NM S AND SW OF A LINE FROM 56N35W TO 57N37W
WINDS 50 TO 65 KT. SEAS 8 TO 14 M...HIGHEST NEAR 56N35W.
ELSEWHERE FROM 46N TO 60N E OF 42W AND N OF 60N E OF GREENLAND
WINDS 35 TO 50 KT. SEAS 6 TO 10 M. ALSO FROM 45N TO 60N E OF 45W
WINDS 25 TO 40 KT. SEAS 4.5 TO 8 M.=20=20
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER WELL E OF AREA
61N18W 968 MB AND CONDITIONS DESCRIBED BELOW WITH LOW 59N43W.
=20
...STORM WARNING...
.W AND NW OF A LINE FROM 35N70W TO 43N50W TO 45N45W AND W AND NW
OF A LINE FROM 45N45W TO 55N45W WINDS 25 TO 35 KT. SEAS 3.5 TO 7
M...EXCEPT 2.5 TO 4 M IN THE GULF OF SAINT LAWRENCE.=20=20=20
.12 HOUR FORECAST NEW COMPLEX LOW WITH MAIN CENTER NEAR 63N56W.
WITHIN 240 NM W AND NW OF A LINE FROM 54N55W TO 60N55W TO 63N60W
AND WITHIN 90 NM NE OF A LINE FROM 64N59W TO 59N49W WINDS 30 TO
40 KT. SEAS 3 TO 6 M.=20=20
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 59N43W 975 MB.
BETWEEN 180 NM AND 960 NM SE...180 NM AND 1080 NM S...120 NM AND
660 NM SW...120 NM AND 480 NM W AND 180 NM AND 420 NM NW
QUADRANTS WINDS 35 TO 50 KT. SEAS 4.5 TO 9 M...HIGHEST NEAR
51N38W. ELSEWHERE WITHIN 1140 NM SE...1200 NM S...1260 NM
SW...600 NM W AND 660 NM NW QUADRANTS AND FROM 61N TO 63N E OF
GREENLAND WINDS 25 TO 40 KT. SEAS 3 TO 6 M.=20
.42 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER E OF THE AREA=20
59N29W 964 MB. WITHIN AN AREA BOUNDED BY A LINE FROM 48N35W TO
60N45W TO 58N35W TO 48N35W WINDS 45 TO 60 KT. SEAS 7 TO 12
M...HIGHEST NEAR 57N35W.=20
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER E OF AREA 59N26W
968 MB. WITHIN AN AREA BOUNDED BY A LINE FROM 46N35W TO 60N45W TO
60N35W TO 46N35W WINDS 35 TO 50 KT. SEAS 6 TO 11 M...HIGHEST NEAR
57N35W. ELSEWHERE FROM 46N TO 60N E OF 47W...N OF 60N E OF
GREENLAND WINDS 25 TO 40 KT. SEAS 4 TO 8 M. ALSO WITHIN AN AREA
BOUNDED BY A LINE FROM 42N35W TO 45N40W TO 45N35W TO 42N35W WINDS
20 TO 30 KT. SEAS 2.5 TO 5.5 M.=20
...STORM WARNING...
.12 HOUR FORECAST NEW LOW S OF THE AREA. FROM 31N TO 34N BETWEEN
40W AND 63W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.=20=20
.18 HOUR FORECAST LOW S OF THE AREA FROM 31N TO 33N BETWEEN 54W
AND 58W WINDS 30 TO 40 KT. SEAS 3.5 TO 6 M...HIGHEST NEAR 31N57W.
.24 HOUR FORECAST LOW S OF THE AREA WITHIN 180 NM W AND NW OF A
LINE FROM 31N55W TO 33N51W WINDS 35 TO 50 KT. SEAS 3.5 TO 6.5
M...HIGHEST NEAR 31N56W. ELSEWHERE FROM 32N TO 35N BETWEEN 54W
AND 41W AND FROM 31N TO 35N BETWEEN 54W AND 62W WINDS 25 TO 35
KT. SEAS 2.5 TO 4 M.=20
.48 HOUR FORECAST LOW JUST S OF THE AREA. FROM 31N TO 40N BETWEEN
58W AND 47W AND FROM 34N TO 40N E OF 47W WINDS 25 TO 35 KT. SEAS
2.5 TO 5 M.
...STORM WARNING...
.30 HOUR FORECAST NEW LOW 35N77W 1008 MB. WITHIN 180 NM E...120
NM SE AND 180 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5
M...HIGHEST NEAR 34N77W.=20=20=20
.42 HOUR FORECAST INLAND LOW 43N71W 990 MB. BETWEEN 360 NM AND
720 NM NE...WITHIN 300 NM E...600 NM S AND 660 NM SW QUADRANTS
WINDS 35 TO 50 KT. SEAS 4 TO 7.5 M...EXCEPT 2.5 TO 5 M IN THE
GULF OF SAINT LAWRENCE.=20
.48 HOUR FORECAST INLAND LOW 51N68W 977 MB. BETWEEN 480 NM AND
660 NM NE...120 NM AND 480 NM SE...420 NM AND 960 NM S AND 480 NM
AND 840 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 4.5 TO
8...HIGHEST NEAR 42N66W. SEAS 2.5 TO 5.5 IN THE GULF OF SAINT
LAWRENCE. ELSEWHERE WITHIN 840 NM NE...960 NM E...960 NM SE AND
BETWEEN 360 NM AND 1200 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS
2.5 TO 5 M.
...HEAVY FREEZING SPRAY WARNING...=20
.LIGHT TO MODERATE FREEZING SPRAY FROM 55N TO 60N W OF 60W...FROM
60N TO 62N WITHIN 60 NM W OF GREENLAND AND N OF 62N W OF
GREENLAND.=20=20
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 49N TO 51N BETWEEN 50W AND 59W...INCLUDING THE NE GULF
OF SAIN LAWRENCE...W OF A LINE FROM 51N59W TO 64N59W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY W AND NW OF A LINE FROM 47N46W
TO 62N50W...INCLUDING THE REST OF THE GULF OF SAINT LAWRENCE AND
N OF 62N W OF GREENLAND.=20
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W AND NW OF A
LINE FROM 60N61W TO 63N59W AND W OF A LINE FROM 65N55W TO 67N54W.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY FROM 55N TO 58N W OF
45W...FROM 58N TO 60N W OF 42W AND N OF 60N W OF GREENLAND.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM W AND NW OF A LINE
FROM 48N63W TO 51N55W...INCLUDING THE N GULF OF SAINT
LAWRENCE...FROM 51N TO 58N BETWEEN 46W AND 55W...W OF A LINE FROM
58N52W TO 63N61W AND FROM 55N TO 63N E OF 40W..
.24 HOUR FORECAST DENSE FOG FROM 53N TO 58N E OF 40W...FROM 58N
TO 60N E OF 45W AND WITHIN 120 NM N E OF A LINE FROM 60N51W TO
64N57W TO THE W COAST OF GREENLAND.
.48 HOUR FORECAST DENSE FOG W AND NW OF A LINE FROM 55N47W TO
60N57W TO THE COAST OF LABRADOR AND N OF 62N W OF 36W TO E
GREENLAND.
.FORECASTER FUTTERMAN. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 0000 UTC THU DEC 18.
24 HOUR FORECAST VALID 0000 UTC FRI DEC 19.
48 HOUR FORECAST VALID 0000 UTC SAT DEC 20.
.WARNINGS.
...ATLC GALE WARNING...
.WITHIN 28N62W TO 30N60W TO 28N65W TO 27N64W TO 24N67W TO 26N63W
TO 28N62W N TO NE WINDS 20 TO 30 KT. SEAS 3.0 TO 3.5 M IN N
SWELL.
WITHIN 31N46.5W TO 31N51W TO 31N54.5W TO 30.5N53.5W TO 30.5N50.5W
TO 31N46.5W E WINDS 20 TO 25 KT. SEAS 3.0 TO 3.5 M IN NW TO N=20
SWELL. ELSEWHERE WITHIN 30N37W TO 31N60W TO 26N77W TO 19N68W TO=20
19N60W TO 24N40W TO 30N37W...INCLUDING IN ATLANTIC EXPOSURES...=20
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW TO N SWELL.
.12 HOUR FORECAST LOW PRES NEAR 30N58W 1010 MB. WITHIN 30N59W TO
31N58W TO 31N59W TO 30N61W TO 28N61W TO 29N60W TO 30N59W N TO NE
WINDS 30 TO 40 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE WITHIN 31N58W TO
31N63W TO 29N62W TO 27N62W TO 28N59W TO 31N58W N TO NE WINDS 20=20
TO 30 KT. SEAS 2.5 TO 4.0 M. WITHIN 29N56W TO 31N56W TO 31N58W TO
29N59W TO 27N59W TO 28N57W TO 29N56W SW WINDS 20 TO 30 KT. SEAS=20
2.5 TO 4.0 M IN N SWELL. REMAINDER OF AREA WITHIN 31N35W TO=20
26N53W TO 31N57W TO 26N77W TO 19N55W TO 25N35W TO=20
31N35W...INCLUDING IN ATLANTIC EXPOSURES...WINDS 20 KT OR LESS.=20
SEAS 2.5 TO 4.0 M IN MIXED N AND E SWELL.
.24 HOUR FORECAST LOW PRES NEAR 30N56W 1008 MB. WITHIN 31N56W TO
31N58W TO 30N59W TO 28N58W TO 29N57W TO 31N56W N TO NE WINDS 30=20
TO 45 KT. SEAS 4.0 TO 5.5 M. ELSEWHERE WITHIN 31N55W TO 31N61W TO
28N61W TO 27N59W TO 28N57W TO 31N55W N TO NE WINDS 20 TO 30 KT.=20
SEAS 3.0 TO 4.5 M IN N TO NE SWELL. WITHIN 29N54W TO 30N55W TO=20
29N56W TO 28N56W TO 27N55W TO 29N54W S TO SW WINDS 20 TO 25 KT.=20
SEAS 2.5 TO 3.5 M IN MIXED N AND SW SWELL. REMAINDER OF AREA=20
WITHIN 31N35W TO 28N54W TO 31N80W TO 24N74W TO 27N55W TO 26N35W=20
TO 31N35W...INCLUDING ATLANTIC EXPOSURES..WINDS 20 KT OR LESS.=20
SEAS 2.5 TO 3.5 M IN N TO NE SWELL E OF 65W AND IN E TO SE SWELL=20
W OF 65W.
.42 HOUR FORECAST LOW PRES NEAR 29.5N56W 1010 MB. WITHIN 29N54W=20
TO 31N57W TO 31N59W TO 27N55W TO 28N54W TO 29N54W WINDS 20 TO 25=20
KT. SEAS 3.0 TO 4.5 M IN NE SWELL. ELSEWHERE WITHIN 31N35W TO=20
31N64W TO 23N65W TO 22N50W TO 24N35W TO 31N35W E WINDS 20 TO 25=20
KT. SEAS 2.5 TO 4.5 M IN N TO NE SWELL.
.48 HOUR FORECAST LOW PRES NEAR 30.5N56.5W 1012 MB. WITHIN=20
30N53W TO 31N53W TO 31N55W TO 29N54W TO 29N50W TO 30N49W TO=20
30N53W SE TO S WINDS 20 TO 25 KT. SEAS 3.0 TO 3.5 M IN N TO NE=20
SWELL. ELSEWHERE WITHIN 31N35W TO 28N48W TO 31N64W TO 23N64W TO=20
20N59W TO 22N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M
IN N TO NE SWELL.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 22N35W TO 24N40W TO 19N48W TO 15N46W TO 17N41W TO
12N35W TO 22N35W E WINDS 20 TO 25 KT. SEAS 3.0 TO 3.5 M IN NE TO
E SWELL. ELSEWHERE WITHIN 24N35W TO 24N41W TO 17N62W TO 08N58W=20
TO 06N52W TO 07N35W TO 24N35W...INCLUDING IN ATLANTIC EXPOSURES=20
AND PASSAGES...WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M IN NE TO E=20
SWELL.
.24 HOUR FORECAST WITHIN 22N38W TO 22N41W TO 20N42W TO 21N40W TO
19N39W TO 20N37W TO 22N38W E WINDS 20 TO 25 KT. SEAS 3.5 TO 4.0=20
M IN MIXED E AND N SWELL. WITHIN 09N35W TO 09N36W TO 09N37W TO=20
08N40W TO 07N39W TO 07N35W TO 09N35W NE TO E WINDS 20 TO 25 KT.=20
SEAS 3.0 TO 3.5 M IN NE SWELL. ELSEWHERE WITHIN 26N35W TO 25N52W=20
TO 19N62W TO 10N60W TO 06N53W TO 09N35W TO 26N35W...INCLUDING IN=20
ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5=20
TO 4.0 M IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 23N35W TO 23N39W TO 22N39W TO 23N44W TO
21N45W TO 19N36W TO 23N35W NE TO E WINDS 20 TO 25 KT. SEAS 3.0=20
TO 3.5 M IN MIXED E AND N SWELL. ELSEWHERE WITHIN 23N35W TO=20
20N58W TO 12N60W TO 06N53W TO 07N35W TO 23N35W...INCLUDING IN=20
ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5=20
TO 3.5 M IN NE TO E SWELL.
.ATLC 18 HOUR FORECAST WITHIN 31N78.5W TO 31N79W TO 31N80W TO
30N77.5W TO 30N77W TO 30.5N77W TO 31N78.5W SE TO S WINDS 20 TO
25 KT. SEAS TO 2.5 M IN SE SWELL.
.24 HOUR FORECAST WITHIN 31N76W TO 31N80W TO 30N79W TO 30N77W TO
30N76W TO 31N76W SE TO S WINDS 20 TO 30 KT. SEAS TO 3.0 M IN SE=20
SWELL.
.48 HOUR FORECAST WITHIN 31N70.5W TO 31N72.5W TO 30.5N71W TO=20
31N70.5W SW WINDS 20 TO 25 KT. SEAS 2.5 M IN E SWELL. ELSEWHERE=20
WITHIN 31N70W TO 31N79W TO 29N78W TO 29N77W TO 30N75W TO 30N72W=20
TO 31N70W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MERGING W AND
SE SWELL.
.CARIBBEAN 03 HOUR FORECAST WITHIN 12N74W TO 12N75W TO 12N76W TO
11N75W TO 11N74W TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.24 HOUR FORECAST WITHIN 12N70W TO 12N73W TO 13N74W TO 11N75W TO
12N73W TO 11N71W TO 12N70W...INCLUDING THE GULF OF VENEZUELA...=20
NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 12N73W TO 12N74W TO 12N76W TO 11N75W TO
12N74W TO 12N73W NE WINDS 20 TO 30 KT. SEAS TO 2.50 M IN NE TO E
SWELL. ELSEWHERE WITHIN 12N76W TO 12N75W TO 13N77W TO 11N79W TO=20
11N75W TO 12N76W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE TO E=20
SWELL.
.GULF OF AMERICA 03 HOUR FORECAST FROM 25N TO 26N BETWEEN 87W AND
88.5W WINDS 20 KT OR LESS. SEAS 2.5 M IN SE SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS=20
LESS THAN 2.5 M.
.33 HOUR FORECAST WITHIN 28N94.5W TO 28.5N94.5W TO 28.5N95W TO=20
28N96W TO 27.5N96.5W TO 27.5N95.5W TO 28N94.5W NE WINDS 20 TO 25=20
KT. SEAS LESS THAN 2.5 M.
.39 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS=20
LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
$$
=3D =3D =3D =3D =3D =3D =3D
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