FZNT01 KWBC 300423
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC TUE DEC 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 30.
24 HOUR FORECAST VALID 0000 UTC DEC 31.
48 HOUR FORECAST VALID 0000 UTC JAN 01.
.WARNINGS.
...STORM WARNING...
.LOW 64N62W 1002 MB MOVING NE 25 KT. WITHIN 60 NM N AND NE OF A
LINE FROM 59N46W TO 63N53W TO 65N54W AND WITHIN 90 NM NE AND E OF
LINE FROM 65N54W TO 67N57W WINDS 40 TO 55 KT. SEAS 6 TO 10 M.
ELSEWHERE FROM 55N TO 60N BETWEEN 35W AND 50W AND N OF 60N W OF
GREENLAND WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW N OF AREA. N OF 64N W OF GREENLAND AREA OF
SE WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS N OF AREA.
...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW 43N49W 982 MB MOVING SE 20 KT AND
SECOND LOW 41N39W 992 MB MOVING NW 30 KT. WITHIN 360 NM N AND NE
OF A FRONT FROM 47N46W TO THE SECOND LOW TO 38N35W WINDS 35 TO 50
KT. SEAS 4.5 TO 8 M...HIGHEST NEAR 45N40W. ELSEWHERE FROM 31N TO
55N E OF 56W WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 51N51W 996 MB AND
SECOND LOW 40N36W 1000 MB. WITHIN 300 NM NE...660 NM N AND NW
QUADRANTS OF MAIN LOW WINDS 40 TO 55 KT. SEAS 6.5 TO 11
M...HIGHEST NEAR 55N52W. ELSEWHERE WITHIN 720 NM SE AND 540 NM NE
QUADRANTS OF MAIN LOW WINDS 25 TO 40 KT. SEAS 4 TO 8 M. ALSO
WITHIN 540 NM S...1260 NM SW AND 660 NM W QUADRANTS OF SECOND LOW
WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST COMPLEX LOW AND CONDITIONS ABSORBED BY INLAND
LOW 58N79W DESCRIBED BELOW.
...STORM WARNING...
.LOW 44N69W 984 MB MOVING N 20 KT. BETWEEN 180 NM AND 420 NM SE
AND 240 NM AND 840 NM SW QUANDRANTS WINDS 35 TO 45 KT. SEAS 3 TO
5.5 M. ELSEWHERE WITHIN 420 NM NE...540 NM SE AND 960 NM SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST INLAND LOW NEAR 53N68W 966 MB. BETWEEN 180 NM
AND 840 NM SE AND 240 NM AND 1140 NM S QUADRANTS WINDS 25 TO 40
KT. SEAS 4 TO 7.5 M...EXCEPT 2.5 TO 4.5 M IN THE GULF OF SAINT
LAWRENCE.
.36 HOUR FORECAST INLAND LOW 56N75W 960 MB. WITHIN 300 NM N AND
NE OF A LINE FROM 55N44W TO 58N56W TO 62N60W TO W GREENLAND WINDS
40 TO 55 KT. SEAS 6.5 TO 11.5 M...HIGHEST NEAR 62N58W.
.48 HOUR FORECAST INLAND LOW 58N79W 962 MB. WITHIN 240 NM N AND
NE OF A LINE FROM 55N45W TO 61N55W TO 63N60W WINDS 40 TO 55 KT.
SEAS 6 TO 12 M...HIGHEST NEAR 64N56W. ELSEWHERE FROM 50N TO 60N
BETWEEN 38W AND 46W...FROM 50N TO 60N W OF 52W AND W AND SW OF A
LINE FROM 60N54W TO 63N60W WINDS 25 TO 40 KT. SEAS 4 TO 8 M. ALSO
IN THE GULF OF SAINT LAWRENCE WINDS 20 TO 30 KT. SEAS 2.5 TO 5
M.
...HEAVY FREEZING SPRAY WARNING...
.LIGHT FREEZING SPRAY W OF A LINE FROM 56N58W TO 62N60W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 41N72W TO
43N67W TO 45N64W...INCLUDING THE BAY OF FUNDY...W OF A LINE FROM
46N62W TO 50N61W IN THE GULF OF SAINT LAWRENCE AND N OF 65N W OF
GREENLAND.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY WITHIN THE
GULF OF SAINT LAWRENCE NW OF A LINE FROM 48N64W TO 50N60W.
ELSEWHERE LIGHT FREEZING SPRAY IN THE REST OF THE GULF OF SAINT
LAWRENCE AND W AND SW OF A LINE FROM 50N51W TO 60N62W.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST LOW WELL E OF THE AREA 42N23W 997 MB. FROM 31N
TO 40N E OF 40W AREA OF NW TO N WINDS TO 25 KT. SEAS 2.5 TO 5 M
IN N SWELL.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 45N
BETWEEN 63W AND 70W...FROM 46N TO 57N BETWEEN 45W AND
54W...WITHIN 60 NM E OF A LINE FROM 59N53W TO 64N54W AND N OF 64N
W OF GREENLAND.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM SW AND W OF A LINE FROM
47N43W TO 55N51W.
.48 HOUR FORECAST DENSE FOG WITHIN 90 NM NW OF A LINE FROM 41N65W
TO 43N60W AND WITHIN 90 NM NE OF A LINE FROM 62N58W TO 58N51W.
.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 TUE DEC 30.
24 HOUR FORECAST VALID 0000 UTC WED DEC 31.
48 HOUR FORECAST VALID 0000 UTC THU JAN 1.
.WARNINGS.
...GULF OF AMERICA GALE WARNING...
.GULF OF AMERICA COLD FRONT FROM 27.5N82.5W. WITHIN 23N96W TO
24N96W TO 25N97W TO 22N98W TO 21N97W TO 21N96W TO
23N96W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ... N WINDS
30 TO 40 KT. SEAS 2.5 TO 5.0 M. ELSEWHERE WITHIN 29N91W TO
28N97W TO 23N98W TO 20N96W TO 23N94W TO 25N90W TO 29N91W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST COLD FRONT MOVE SE OF AREA. WITHIN 20N95W TO
20N96W TO 19N96W TO 19N95W TO 20N95W...INCLUDING WITHIN 60 NM OF
COAST OF VERACRUZ... NW TO N WINDS 30 TO 35 KT. SEAS 4.0 TO 6.0
M. ELSEWHERE WITHIN 21N96W TO 22N97W TO 20N97W TO 19N96W TO
18N94W TO 19N94W TO 21N96W NW TO N WINDS 20 TO 30 KT. SEAS 4.0 TO
5.5 M. WITHIN 21N90W TO 22N91W TO 22N95W TO 19N94W TO 19N91W TO
21N90W N TO NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. REMAINDER
AREA WITHIN 25N86W TO 26N93W TO 25N97W TO 20N97W TO 21N91W TO
23N84W TO 25N86W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N
SWELL.
.30 HOUR FORECAST WITHIN 21N93W TO 21N95W TO 20N97W TO 18N95W TO
19N93W TO 20N92W TO 21N93W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ... N WINDS 20 TO 30 KT. SEAS 3.0 TO 5.0 M. ELSEWHERE
WITHIN 23N84W TO 24N93W TO 22N97W TO 18N95W TO 21N90W TO 21N85W
TO 23N84W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE
SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N35W TO 20N53W. WITHIN 31N35W TO 31N36W
TO 28N38W TO 26N39W TO 26N36W TO 27N35W TO 31N35W SW TO W WINDS
20 TO 30 KT. SEAS 2.5 TO 4.0 M. WITHIN 31N37W TO 31N55W TO
28N52W TO 27N49W TO 28N39W TO 31N37W W TO NW WINDS 20 TO 30 KT.
SEAS 4.5 TO 6.0 M. ELSEWHERE WITHIN 31N35W TO 30N66W TO 20N61W
TO 19N55W TO 25N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO
4.0 M IN N SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 25N35W TO 19N50W.
WITHIN 31N35W TO 31N60W TO 23N62W TO 14N55W TO 15N44W TO 20N35W
TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN NW TO N
SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN 31N35W TO 31N37W
TO 30N37W TO 29N36W TO 28N35W TO 31N35W NW WINDS 20 TO 25 KT.
SEAS 4.0 TO 4.5 M. ELSEWHERE WITHIN 31N35W TO 31N45W TO 15N58W
TO 06N54W TO 10N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO
4.0 M IN NW TO N SWELL.
.ATLC COLD FRONT FROM 31N78W TO 29M81W. WITHIN 31N72W TO 31N77W
TO 30N77W TO 29N76W TO 30N73W TO 31N72W SW TO W WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M. WITHIN 31N76W TO 31N81W TO 29N81W TO
28N79W TO 29N77W TO 31N76W W TO NW WINDS 20 TO 25 KT. SEAS 2.5
M.
.24 HOUR FORECAST COLD FRONT FROM 31N65W TO 23N80W. WITHIN
31N62W TO 31N64W TO 30N64W TO 30N62W TO 31N62W SW TO W WINDS 20
TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 31N61W TO 31N73W
TO 30N72W TO 29N67W TO 29N62W TO 31N61W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN W TO NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N60W TO 21N76W. WITHIN
31N55.5W TO 31N58.5W TO 30.5N58.5W TO 30N58W TO 30N56.5W TO
31N55.5W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
WITHIN 31N50W TO 31N66W TO 28N66W TO 27N59W TO 29N52W TO 31N50W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW SWELL.
.ATLC WITHIN 23N35W TO 19N40W TO 14N60W TO 06N57W TO 07N37W TO
08N35W TO 23N35W...INCLUDING ATLANTIC EXPOSURES... WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 10N35W TO 11N53W TO 10N57W TO 06N53W TO
07N49W TO 07N35W TO 10N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NW TO N SWELL.
.48 HOUR FORECAST CONDITIONS MERGED.
.CARIBBEAN WITHIN 14N74W TO 14N79W TO 13N80W TO 10N79W TO 10N76W
TO 12N72W TO 14N74W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 14N69W TO 14N74W TO 12N77W TO 10N76W TO
12N73W TO 12N68W TO 14N69W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 13N66W TO 14N70W TO 14N73W TO 11N72W TO
11N66W TO 13N66W...INCLUDING THE GULF OF VENEZUELA... E WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.
