HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC MON DEC 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC DEC 29.
24 HOUR FORECAST VALID 1200 UTC DEC 30.
48 HOUR FORECAST VALID 1200 UTC DEC 31.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW 43N49W 968 MB MOVING NE 05 KT AND
SECOND LOW 42N41W 994 MB MOVING NW 10 KT. WITHIN 180 NM S AND SW
AND 150 NM E AND NE QUADRANTS WINDS 35 TO 50 KT. SEAS 5.5 TO 8.5
M...HIGHEST NEAR 43N47W. ALSO FROM 31N TO 47N BETWEEN 50W AND
60W...WITHIN 240 NM OF MAIN LOW AND WITHIN 420 NM NE AND E OF A
FRONT FROM 46N47W TO SECOND LOW WINDS 25 TO 40 KT. SEAS 3 TO 6.5
M...HIGHEST NEAR 35N56W. ELSEWHERE S OF 50N E OF 62W WINDS 20 TO
30 KT. SEAS 2.5 TO 5.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 44N46W 990 MB AND
SECOND LOW 46N45W 992 MB. WITHIN 360 NM N AND NE QUADRANTS OF
SECOND LOW WINDS 35 TO 50 KT. SEAS 5.5 TO 8.5 M. ALSO WITHIN 660
NM NE SEMICIRCLE OF SECOND LOW AND WITHIN 240 NM SW AND S
QUADRANTS OF MAIN LOW AND FROM 33N TO 42N BETWEEN 40W AND 50W
WINDS 25 TO 40 KT. SEAS 3 TO 6.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 45N38W 1008 MB.
WITHIN 360 NM N AND NE QUADRANTS WINDS 20 TO 30 KT. SEAS 3 TO
4.5 M.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 60N61W 1000 MB MOVING N 25 KT.
WITHIN 120 NM NE OF A LINE FROM 58N45W TO 62N53W WINDS 35 TO 50
KT. SEAS 5.5 TO 8 M. ELSEWHERE FROM 60N TO 66N W OF 51W AND
WITHIN 420 NM E OF A LINE FROM 60N54W TO 50N43W WINDS 25 TO 40
KT. SEAS 3.5 TO 6.5 M...HIGHEST NEAR 63N55W.
.12 HOUR FORECAST LOW 65N60W 1001 MB. WITHIN 90 NM W OF
GREENLAND WINDS 40 TO 55 KT. SEAS 5.5 TO 9 M.
.24 HOUR FORECAST LOW N OF AREA. N OF 63N W OF GREENLAND WINDS
TO 25 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS N OF AREA.
...STORM WARNING...
.WITHIN 180 NM W AND NW OF A LINE FROM 32N74W TO 38N68W WINDS 25
TO 35 KT. SEAS TO 3 M.
.12 HOUR FORECAST NEW INLAND LOW 45N69W 982 MB. BETWEEN 180 NM
AND 840 NM S QUADRANT WINDS 25 TO 40 KT. SEAS 2.5 TO 5
M...HIGHEST NEAR 38N68W.
.24 HOUR FORECAST COMPLEX WITH MAIN INLAND LOW 49N67W 974 MB.
FROM 36N TO 44N BETWEEN 57W AND 74W WINDS 35 TO 45 KT. SEAS 3 TO
6 M. ELSEWHERE WITHIN 360 NM SE QUADRANT...FROM 35N TO 46N W OF
56W AND WITHIN 180 NM E OF A LINE FROM 35N64W TO 32N67W WINDS 25
TO 40 KT. SEAS 2.5 TO 4.5 M...EXCEPT TO 3.5 M IN THE GULF OF
SAINT LAWRENCE.
.48 HOUR FORECAST COMBINED INLAND LOW 56N74W 959 MB. FROM 58N TO
63N BETWEEN 46W AND 65W WINDS 40 TO 55 KT. SEAS 5 TO 9.5
M...HIGHEST NEAR 60N56W. ELSEWHERE W OF A LINE FROM 66N57W TO
55N42W AND WITHIN 240 NM NE OF A FRONT FROM 55N49W TO 49N45W
WINDS 25 TO 40 KT. SEAS 4 TO 7.5 M. ALSO N OF A LINE FROM 34N76W
TO 37N51W AND WITHIN 360 NM NE AND E OF FRONT WINDS 20 TO 30 KT.
SEAS 3 TO 6.5 M...EXCEPT 2.5 TO 4 M IN THE GULF OF SAINT
LAWRENCE.
..GALE WARNING...
.LOW 35N40W 996 MB MOVING NE 20 KT. FROM 31N TO 42N BETWEEN 35W
AND 40W WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW 43N37W 999 MB. ASSOCIATED CONDITIONS
MERGED WITH COMPLEX LOW IN FIRST STORM WARNING ABOVE.
...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 46N63W TO
52N55W INCLUDING THE GULF OF SAINT LAWRENCE AND N OF 64N E OF
GREENLAND.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 63N60W TO 67N53W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY WITHIN THE
GULF OF SAINT LAWRENCE W OF 62W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY W OF A LINE FROM 43N70W TO 46N61W TO
51N58W...INCLUDING THE BAY OF FUNDY AND GULF OF SAINT LAWRENCE.
64N53W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 40N W OF
68W...FROM 44N TO 50N BETWEEN 46W AND 53W...WITHIN 180 NM W OF A
LINE FROM 51N44W TO 60N53W...AND NW AND N OF A LINE FROM 55N56W
TO 64N53W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 45N W OF 61W TO NOVA
SCOTIA...FROM 44N TO 48N BETWEEN 43W AND 52W...FROM 48N TO 58N
TO NEWFOUNDLAND AND LABRADOR AND N OF 64N W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 54N BETWEEN 45W AND 51W.
.FORECASTER BANCROFT. 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 1200 UTC MON DEC 29.
24 HOUR FORECAST VALID 1200 UTC TUE DEC 30.
48 HOUR FORECAST VALID 1200 UTC WED DEC 31.
.WARNINGS.
...ATLANTIC GALE WARNING...
.ATLC COLD FRONT FROM 31N41W TO 21N58W TO 23.5N72W. E OF COLD
FRONT WITHIN 30N40W TO 31N39W TO 31N41W TO 28N42W TO 29N40W TO
30N40W SW TO W WINDS 30 TO 35 KT. SEAS 4.0 TO 5.0 M IN W TO SW
SWELL. ELSEWHERE WITHIN 31N36W TO 31N39W TO 24N47W TO 24N45W TO
26N39W TO 31N36W SW WINDS 20 TO 30 KT. SEAS 3.0 TO 4.5 M. W OF
COLD FRONT WITHIN 31N41W TO 31N58W TO 26N55W TO 25N46W TO 31N41W
W TO NW WINDS 20 TO 30 KT. SEAS 4.0 TO 5.5 M IN NW TO N SWELL.
REMAINDER OF AREA WITHIN 31N35W TO 26N54W TO 31N68W TO 22N64W TO
20N51W TO 23N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 5.5
M.
.06 HOUR FORECAST COLD FRONT FROM 31N39W TO 20.5N54.5W TO
22N64.5W. E OF COLD FRONT WITHIN 29N35W TO 31N35W TO 31N39W TO
28N40W TO 23N44W TO 25N39W TO 29N35W SW TO W WINDS 20 TO 30 KT.
SEAS 3.0 TO 4.5 M IN W TO NW SWELL. W OF COLD FRONT WITHIN 31N39W
TO 31N56W TO 28N51W TO 27N44W TO 28N41W TO 31N39W W TO NW WINDS
20 TO 30 KT. SEAS 4.0 TO 5.5 M IN NW TO N SWELL. ELSEWHERE WITHIN
31N39W TO 28N49W TO 31N65W TO 23N65W TO 20N54W TO 23N35W TO
31N39W WINDS 20 KT OR LESS. SEAS 2.5 TO 5.0 M.
.24 HOUR FORECAST COLD FRONT FROM E OF AREA TO 26N35W TO
18.5N54W. WITHIN 31N37.5W TO 31N40.5W TO 30.5N39W TO 30.5N38.5W
TO 31N37.5W W WINDS 20 TO 25 KT. SEAS 4.0 TO 4.5 M. ELSEWHERE
WITHIN 31N35W TO 31N63W TO 25N63W TO 16N54W TO 24N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 2.5 TO 5.0 M IN NW TO N SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN 31N35W TO 31N38W
TO 30N36W TO 30N35W TO 31N35W W TO NW WINDS 20 TO 25 KT. SEAS
4.0 TO 4.5 M. ELSEWHERE WITHIN 30N35W TO 31N51W TO 20N59W TO
10N59W TO 07N49W TO 18N35W TO 30N35W WINDS 20 KT OR LESS. SEAS
2.5 TO 4.5 M IN NW TO N SWELL.
...GULF OF AMERICA GALE WARNING...
.GULF OF AMERICA COLD FRONT FROM 30N88W TO 26N97W. N OF COLD
FRONT WITHIN 28N92W TO 29N94W TO 28N97W TO 27N97W TO 26N96W TO
28N92W N TO NE WINDS 25 TO 35 KT. SEAS LESS THAN 2.5 M. ELSEWHERE
WITHIN 30N88W TO 29N91W TO 30N95W TO 28N97W TO 26N97W TO 28N91W
TO 30N88W N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST COLD FRONT FROM 30N83.5W TO 23.5N97W TO
22N98W. N OF COLD FRONT WITHIN 24N97W TO 25N97W TO 25N97.5W TO
24N98W TO 22.5N98W TO 22.5N97.5W TO 24N97W NW TO N WINDS 30 TO 40
KT. SEAS LESS THAN 2.5 M. ELSEWHERE WITHIN 28N89W TO 30N88W TO
28N97W TO 25N97W TO 26N93W TO 27N92W TO 28N89W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 28N85W TO
30N89W TO 28N97W TO 27N92W TO 25N97W TO 24N97W TO 28N85W N WINDS
20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST COLD FRONT FROM 26.5N80W TO 25N81W TO 21N93.5W
TO 18.5N93W. N OF COLD FRONT WITHIN 20N95W TO 21N96W TO 20N97W
TO 19N96W TO 18N95W TO 19N94W TO 20N95W...INCLUDING WITHIN 60 NM
OF COAST OF VERACRUZ...NW TO N WINDS 30 TO 45 KT. SEAS 4.0 TO 6.0
M. ELSEWHERE WITHIN 27N91W TO 25N95W TO 28N97W TO 24N98W TO
20N96W TO 24N88W TO 27N91W N WINDS 20 TO 30 KT. SEAS 2.5 TO 5.0
M. ELSEWHERE WITHIN 30N85W TO 30N87W TO 29N89W TO 28N92W TO
28N91W TO 29N85W TO 30N85W N WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M. REMAINDER OF AREA WITHIN 28N84W TO 29N88W TO 28N97W TO
24N96W TO 26N91W TO 24N86W TO 28N84W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN N SWELL.
.42 HOUR FORECAST COLD FRONT S OF AREA. WITHIN 19N92W TO 20N94W
TO 20N96W TO 19N96W TO 19N94W TO 19N92W...INCLUDING WITHIN 60 NM
OF COAST OF VERACRUZ AND WITHIN 60 NM OF COAST OF CAMPECHE...N
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 23N84W TO
24N93W TO 22N97W TO 18N95W TO 21N90W TO 21N85W TO
23N84W...INCLUDING STRAITS OF FLORIDA AND IN YUCATAN
CHANNEL...WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN N SWELL.
.48 HOUR FORECAST WITHIN 20N95W TO 20N96W TO 19N96W TO 19N95W TO
20N95W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...NW TO N
WINDS 20 TO 25 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 22N91W TO
22N94W TO 21N97W TO 19N96W TO 18N95W TO 19N92W TO
22N91W...INCLUDING WITHIN 60 NM OF COAST OF CAMPECHE...WINDS 20
KT OR LESS. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 22N85W TO
23N86W TO 22N87W TO 20N86W TO 21N84W TO 22N85W...INCLUDING
STRAITS OF FLORIDA AND IN YUCATAN CHANNEL...WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 21N35W TO 20N52W TO 16N61W TO 07N56W TO 07N49W TO
14N48W TO 21N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N
SWELL.
.24 HOUR FORECAST WITHIN 14N35W TO 09N57W TO 06N53W TO 08N36W TO
14N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.36 HOUR FORECAST CONDITIONS MERGED WITH AREA DESCRIBED IN
ATLANTIC GALE WARNING.
.ATLC 06 HOUR FORECAST COLD FRONT N OF AREA. WITHIN 31N73W TO
31N81W TO 30N80W TO 30N77W TO 30N75W TO 31N73W SW TO W WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST COLD FRONT FROM 31N69.5W TO 26.5N80W. E OF
COLD FRONT WITHIN 31N65W TO 31N70W TO 29N70W TO 29N69W TO 31N65W
SW TO W WINDS 20 TO 25 KT. SEAS 2.5 M IN W SWELL. W OF COLD FRONT
WITHIN 31N69W TO 31N78W TO 30N80W TO 28N80W TO 29N74W TO 30N71W
TO 31N69W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N63W TO 22.5N78W. N OF COLD
FRONT WITHIN 31N51W TO 31N70W TO 30N70W TO 29N61W TO 30N59W TO
30N52W TO 31N51W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.CARIBBEAN WITHIN 12N74W TO 13N75W TO 13N78W TO 11N78W TO 11N75W
TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE
WITHIN 15N77W TO 13N78W TO 14N81W TO 11N80W TO 10N77W TO 12N74W
TO 15N77W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E
SWELL.
.24 HOUR FORECAST WITHIN 11N75W TO 12N76W TO 11N77W TO 11N76W TO
11N75W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE
WITHIN 13N76W TO 12N78W TO 11N78W TO 10N78W TO 10N77W TO 11N75W
TO 13N76W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E
SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.