HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI DEC 12 2025
CCODE/1:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 12.
24 HOUR FORECAST VALID 0000 UTC DEC 13.
48 HOUR FORECAST VALID 0000 UTC DEC 14.
.WARNINGS.
...STORM WARNING...
.LOW E OF AREA 60N28W 944 MB MOVING NE 20 KT. WITHIN 360 NM SW
AND 420 NM NW QUADRANTS WINDS 40 TO 55 KT. SEAS 6 TO 9 M. ALSO
WITHIN 540 NM W SEMICIRCLE WINDS 25 TO 40 KT. SEAS 5 TO 8 M.
ELSEWHERE FROM 40N TO 50N E OF 50W WINDS TO 25 KT. SEAS 3 TO 6.5
M.
.24 HOUR FORECAST LOW WELL NE OF AREA. CONDITIONS DESCRIBED WITH
LOW 55N32W BELOW.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER INLAND 51N57W 978 MB MOVING NE 10
KT. WITHIN 540 NM E AND 900 NM SE QUADRANTS...AND BETWEEN 480 NM
AND 1200 NM SE QUADRANT WINDS 25 TO 40 KT. SEAS 3 TO 7
M...HIGHEST SE OF CENTER.
.12 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 51N59W 978 MB
AND NEW SECOND CENTER 56N49W 969 MB. BETWEEN 300 NM AND 660 NM S
QUADRANT OF FIRST CENTER WINDS 35 TO 50 KT. SEAS 4 TO 7 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 55N54W 969 MB
AND SECOND CENTER 57N48W 962 MB. WITHIN 180 NM N AND NE
QUADRANTS OF SECOND CENTER...AND FROM 39N TO 47N BETWEEN 52W AND
63W WINDS 40 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR 43N58W.
ELSEWHERE...EXCEPT WHERE DESCRIBED WITH LOW 55N32W BELOW...FROM
35N TO 60N BETWEEN 46W AND 71W...INCLUDING WITHIN THE GULF OF
SAINT LAWRENCE...AND WITHIN 600 NM SE AND S QUADRANTS OF SECOND
CENTER WINDS 25 TO 40 KT. SEAS 4 TO 6.5 M IN MIXED SWELL.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 55N39W 960
MB. WITHIN 300 NM SE AND 420 NM SW QUADRANTS WINDS 40 TO 55 KT.
SEAS 6 TO 9.5 M. ALSO FROM 40N TO 56N E OF 50W...AND N OF 39N
BETWEEN 50W AND 63W WINDS 25 TO 40 KT. SEAS 3 TO 7 M. ELSEWHERE
FROM 33N TO 60N E OF 57W WINDS TO 25 KT. SEAS 3 TO 5.5 M.
...STORM WARNING...
.LOW 42N56W 996 MB MOVING NE 45 KT. WITHIN 420 NM E AND 600 NM S
QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M IN S TO SW SWELL.
.12 HOUR FORECAST LOW 48N47W 988 MB. WITHIN 420 NM E AND 480 NM
S WINDS 35 TO 50 KT. SEAS 4 TO 6.5 M IN SW SWELL.
.24 HOUR FORECAST LOW E OF AREA 55N32W 978 MB. N OF 34N SE OF A
FRONT FROM LOW CENTER TO 35N50W WINDS 25 TO 40 KT. SEAS 4 TO 7 M
IN SW SWELL.
.48 HOUR FORECAST LOW E OF AREA NEAR 62N31W 966 MB. N OF 60N E
OF GREENLAND WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
...GALE WARNING...
.N OF 62N BETWEEN 54W AND 63W AREA OF N WINDS 25 TO 35 KT. SEAS
2.5 TO 4 M.
.24 HOUR FORECAST WITHIN 300 NM NW OF A LINE FROM 55N60W TO
67N52W AREA OF N WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 55N39W ABOVE.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 64N E OF 58W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE FROM 60N64W TO
66N53W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 63N W OF
58W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE
FROM 60N64W TO 66N53W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE
FROM 58N62W TO 67N55W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY WITHIN THE GULF OF SAINT LAWRENCE NW OF A LINE FROM 46N63W
TO 51N56W...AND N OF 50N W OF A LINE FROM 50N52W TO 60N59W TO
67N54W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 59N E OF
43W...N OF 59N W OF 56W...AND FROM 42N TO 58N BETWEEN 37W AND
56W.
.24 HOUR FORECAST DENSE FOG FROM 50N TO 60N W OF 35W...N OF 60N
E OF GREENLAND...AND N OF 60N BETWEEN 56W AND 62W.
.48 HOUR FORECAST DENSE FOG N OF 50N E OF 60W...AND NW OF A LINE
FROM 39N74W TO 45N62W.
.FORECASTER ANDERSON. OCEAN PREDICTION CENTER.
NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA
SYNOPSIS VALID 0000 UTC FRI DEC 12.
24 HOUR FORECAST VALID 0000 UTC SAT DEC 13.
48 HOUR FORECAST VALID 0000 UTC SUN DEC 14.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N35W TO 31N44W TO 27N51W TO 26N61W TO 22N62W TO
23N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW TO
N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N40W TO 26N43W TO 22N43W TO
23N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN N
SWELL.
.48 HOUR FORECAST WITHIN 28N35W TO 27N40W TO 24N46W TO 22N43W TO
23N35W TO 28N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO
NE SWELL.
.ATLC WITHIN 24N38W TO 21N49W TO 14N56W TO 14N44W TO 07N45W TO
08N35W TO 24N38W NE TO E WINDS 20 TO 25 KT. SEAS 3.0 TO 3.5 M IN
MERGING N AND E SWELL. ELSEWHERE WITHIN 23N35W TO 21N63W TO
07N56W TO 07N35W TO 23N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MERGING N
AND E SWELL.
.24 HOUR FORECAST WITHIN 25N35W TO 22N42W TO 22N49W TO 18N56W TO
19N45W TO 18N35W TO 25N35W NE TO E WINDS 20 TO 25 KT. SEAS 3.0
TO 3.5 M IN IN MERGING N AND E SWELL. WITHIN 16N35W TO 17N42W TO
13N43W TO 13N48W TO 07N51W TO 07N37W TO 16N35W NE TO E WINDS 20
TO 25 KT. SEAS 3.0 TO 3.5 M IN IN MERGING N AND E SWELL.
ELSEWHERE WITHIN 19N35W TO 25N50W TO 20N64W TO 12N62W TO 06N55W
TO 07N35W TO 19N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MERGING N
AND E SWELL.
.48 HOUR FORECAST WITHIN 22N35W TO 22N41W TO 19N41W TO 20N49W TO
14N39W TO 14N35W TO 22N35W NE TO E WINDS 20 TO 25 KT. SEAS 3.0
TO 4.0 M IN MERGING N AND E SWELL. ELSEWHERE WITHIN 23N35W TO
26N59W TO 21N66W TO 07N57W TO 07N35W TO 23N35W...INCLUDING IN
ATLANTIC EXPOSURES AND PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5
TO 3.5 M IN PRIMARILY E SWELL.
.ATLC WITHIN 31N57W TO 31N65W TO 29N67W TO 30N62W TO 28N61W TO
30N57W TO 31N57W S TO SW WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M IN
SW SWELL. ELSEWHERE WITHIN 31N57W TO 30N62W TO 31N69W TO 29N68W
TO 28N59W TO 29N56W TO 31N57W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN SW SWELL. WITHIN 31N68W TO 31N73W TO 30N74W TO 30N73W TO
30N71W TO 31N69W TO 31N68W W TO NW WINDS 20 TO 25 KT. SEAS 3.0
TO 3.5 M IN W TO NW SWELL. REMAINDER OF AREA WITHIN 31N68W TO
31N72W TO 31N76W TO 28N76W TO 29N71W TO 31N68W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.5 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 31N52W TO 31N68W TO 28N65W TO 28N58W TO
31N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN W TO NW SWELL.
.48 HOUR FORECAST WITHIN 31N45W TO 31N63W TO 28N65W TO 27N58W TO
27N53W TO 29N50W TO 31N45W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0M
IN NW SWELL.
.CARIBBEAN WITHIN 13N72W TO 14N76W TO 12N76W TO 11N75W TO 12N74W
TO 11N70W TO 13N72W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN 15N76W TO
15N79W TO 12N79W TO 11N75W TO 13N76W TO 13N73W TO 15N76W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.24 HOUR FORECAST WITHIN 12N71W TO 12N73W TO 13N74W TO 11N75W TO
12N73W TO 11N71W TO 12N71W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN 16N78W
TO 15N81W TO 13N82W TO 10N80W TO 10N78W TO 12N73W TO 16N78W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.48 HOUR FORECAST WITHIN 14N74W TO 12N76W TO 11N74W TO 12N73W TO
11N71W TO 12N70W TO 14N74W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS TO 3.0 M. ELSEWHERE WITHIN 18N75W
TO 14N80W TO 12N80W TO 11N76W TO 14N74W TO 13N71W TO 18N75W
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 STRIPLING. NATIONAL HURRICANE CENTER.