FZNT01 KWBC 110348
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU DEC 11 2025

CCODE/2:31:04:01:00/AOE/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(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 11.
24 HOUR FORECAST VALID 0000 UTC DEC 12.
48 HOUR FORECAST VALID 0000 UTC DEC 13.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MAIN CENTER JUST E OF AREA 55N34W 956 MB MOVING
NE 20 KT. BETWEEN 180 NM AND 420 NM SW SEMICIRCLE...AND FROM 57M
TO 62N BETWEEN 40W AND 44W WINDS 55 TO 70 KT. SEAS 8 TO 13.5 M.
ALSO WITHIN 600 NM SW SEMICIRCLE...AND WITHIN 180 NM NW OF A LINE
FROM 57N41W TO 63N35W WINDS 40 TO 55 KT. SEAS 6 TO 11 M.
ELSEWHERE FROM 40N TO 60N E OF 52W...AND N OF 60N E OF GREENLAND
WINDS 25 TO 40 KT. SEAS 4.5 TO 9 M. OTHERWISE S OF 60N E OF
40W...AND FROM 50N TO 58N E OF 57W WINDS TO 25 KT. SEAS 3 TO 6
M.
.24 HOUR FORECAST LOW ABSORBED E OF AREA. CONDITIONS DESCRIBED
WITH LOW 60N28W BELOW.

...STORM WARNING...
.12 HOUR FORECAST LOW E OF AREA NEAR 61N27W 934 MB. N OF 46N E OF
42W WINDS 40 TO 55 KT. SEAS 7 TO 12 M...HIGHEST NEAR 52N35W.
.24 HOUR FORECAST LOW E OF AREA 60N28W 939 MB. WITHIN 420 NM W
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 6 TO 10 M...HIGHEST NEAR
64N36W AND 56N35W. ALSO WITHIN 480 NM W SEMICIRCLE WINDS 25 TO 35
KT. SEAS 5 TO 8 M. ELSEWHERE N OF 50N E OF 50W...EXCEPT N OF 59N
W OF GREENLAND... WINDS TO 25 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 65N23W 958 MB. WITHIN 120 NM
OF THE E GREENLAND COAST N OF 60N WINDS 25 TO 40 KT. SEAS 4 TO
6.5 M...HIGHEST NEAR 64N35W. ELSEWHERE CONDITIONS DESCRIBED WITH
LOW 57N44W ABOVE.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER INLAND NEAR 44N76W 988 MB MOVING NE
25 KT. WITHIN 720 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO
4 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER INLAND 50N64W 978
MB AND NEW SECOND CENTER 50N54W 984 MB. BETWEEN 240 NM AND 780 NM
SE AND S QUADRANTS OF SECOND CENTER WINDS 35 TO 45 KT. SEAS 3 TO
6 M. ELSEWHERE S OF 50N E OF 75W WINDS 25 TO 35 KT. SEAS 2.5 TO 5
M IN MIXED SWELL.
.30 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 52N52W 980 MB.
BETWEEN 300 NM AND 660 NM SE QUADRANT WINDS 35 TO 50 KT. SEAS 5
TO 7.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 55N52W 970 MB AND
SECOND CENTER 57N44W 968 MB. WITHIN 480 NM SE QUADRANT OF FIRST
CENTER...AND BETWEEN 420 NM AND 1020 NM S AND SW QUADRANTS OF
FIRST CENTER WINDS 35 TO 45 KT. SEAS 5 TO 8 M...HIGHEST NEAR
43N57W. ELSEWHERE FROM 40N TO 50N E OF 56W...AND WITHIN 1200 NM
SW QUADRANT OF FIRST CENTER...INCLUDING THE GULF OF SAINT
LAWRENCE...WINDS 25 TO 35 KT. SEAS 3 TO 6.5 M...EXCEPT SEAS 2.5
TO 4.5 M WITHIN THE GULF OF SAINT LAWRENCE.

...GALE WARNING...
.LOW 43N61W 1006 MB MOVING NE 20 KT THEN DISSIPATING. WITHIN 360
NM SE SEMICIRCLE WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 50N54W ABOVE.

...GALE WARNING...
.N OF 62N BETWEEN 54W AND 62W AREA OF N WINDS 25 TO 35 KT. SEAS
TO 3.5 M.
.24 HOUR FORECAST N OF 62N BETWEEN 54W AND 61W AREA OF N WINDS 25
TO 40 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST N OF 55N BETWEEN 53W AND 63W AREA OF N TO NE
WINDS 30 TO 45 KT. SEAS 3 TO 5.5 M.

...GALE WARNING...
.30 HOUR FORECAST NEW LOW TO FORM NEAR 45N50W 992 MB. WITHIN 540
NM SE SEMICIRCLE AND 780 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 4
TO 6.5 M.
.42 HOUR FORECAST LOW 49N40W 985 MB. WITHIN 480 NM SE AND 540 NM
S QUADRANTS WINDS 35 TO 50 KT. SEAS 5 TO 8 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 54N31W 978 MB. FROM 38N TO
50N E OF 44W WINDS 25 TO 40 KT. SEAS 5 TO 8 M IN SW SWELL.
ELSEWHERE...EXCEPT WHERE DESCRIBED WITH LOW 57N44W ABOVE...FROM
34N TO 50N E OF 51W WINDS TO 25 KT. SEAS 4 TO 6 M.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY FROM 52N TO 56N W OF 54W.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 49N WITHIN THE
GULF OF SAINT LAWRENCE...FROM 50N TO 58N W OF 50W...AND N OF 61N
W OF 58W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF
58W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 60N W OF
58W...AND NW OF A LINE FROM 46N64W TO 54N52W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE
FROM 61N65W TO 63N60W TO 67N56W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY N OF 59N W OF 57W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 58N E OF
61W...N OF 57N E OF 42W...AND FROM 45N TO 52N BETWEEN 44W AND
67W...INCLUDING WITHIN THE GULF OF SAINT LAWRENCE.
.24 HOUR FORECAST DENSE FOG N OF 56N E OF 43W...N OF 62N W OF
57W...AND FROM 42N TO 56N BETWEEN 37W AND 52W.
.48 HOUR FORECAST DENSE FOG WITHIN 540 NM NW OF A LINE FROM
51N52W TO 60N26W...AND N OF 60N W OF 55W.

.FORECASTER ANDERSON. 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 11.
24 HOUR FORECAST VALID 0000 UTC FRI DEC 12.
48 HOUR FORECAST VALID 0000 UTC SAT DEC 13.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 26N35W TO 23N41W TO 19N56W TO 15N59W TO 07N50W TO
07N35W TO 26N35W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 23N35W TO 27N54W TO 21N63W TO 06N54W TO
07N35W TO 23N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST WITHIN 25N35W TO 26N42W TO 20N63W TO 07N58W TO
07N35W TO 25N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO
3.5 M.

.ATLC WITHIN 31N35W TO 30N63W TO 26N68W TO 25N64W TO 29N40W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N46W TO 28N48W TO 27N45W TO
25N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N
SWELL.
.48 HOUR FORECAST WITHIN 31N35W TO 31N41W TO 26N41W TO 26N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N SWELL.

.ATLC 06 HOUR FORECAST COLD FRONT NW OR AREA. WITHIN 31N74W TO
31N81W TO 29N80W TO 29N78W TO 30N74W TO 31N74W W WINDS 20 TO
25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST COLD FRONT FROM 31N66W TO 22N78W. WITHIN 31N55W

TO 31N65W TO 28N68W TO 28N60W TO 30N56W TO 31N55W SW WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M. WITHIN 31N66W TO 31N76W TO 29N75W TO
29N72W TO 30N67W TO 31N66W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.5 M IN NW SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 31N58W TO 26N63W.
WITHIN 31N51W TO 31N68W TO 27N64W TO 29N56W TO 31N51W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.

.CARIBBEAN WITHIN 14N70W TO 14N75W TO 13N76W TO 11N75W TO 12N73W
TO 12N69W TO 14N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 13N71W TO 14N76W TO 13N76W TO 12N75W TO
11N72W TO 11N70W TO 13N71W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST WITHIN 13N72W TO 13N76W TO 11N76W TO 11N73W TO
11N71W TO 11N70W TO 13N72W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M. WITHIN 13N77W
TO 14N78W TO 14N80W TO 12N81W TO 10N80W TO 11N77W TO 13N77W NE
TO WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.FORECASTER ERA. NATIONAL HURRICANE CENTER.

$$