HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED DEC 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 31.
24 HOUR FORECAST VALID 1800 UTC JAN 01.
48 HOUR FORECAST VALID 1800 UTC JAN 02.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN INLAND LOW 57N78W 952 MB MOVING NW 10 KT.
WITHIN 300 NM NE OF A LINE FROM 61N62W TO 59N54W TO 55N46W WINDS
40 TO 55 KT. SEAS 6.5 TO 11 M. ELSEWHERE NW OF A LINE FROM 43N69W
TO 43N60W TO 55N49W TO 47N40W TO 58N42W TO 67N57W WINDS 25 TO 40
KT. SEAS 3.5 TO 6.5M...EXCEPT 2.5 TO 5 M IN THE GULF OF SAINT
LAWRENCE.
.24 HOUR FORECAST INLAND LOW NEAR 59N81W 970 MB. N OF 56N W OF
49W WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW WELL INLAND ASSOCIATED CONDITIONS
DIMINISHED.
...GALE WARNING...
.18 HOUR FORECAST NEW LOW 44N70W 998 MB. WITHIN 720 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 44N67W 995 MB. WITHIN 840 NM S QUADRANT
WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
48 HOUR FORECAST LOW 52N64W 979 MB. WITHIN 780 NM NE AND 1020 NM
S QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 6 M...EXCEPT TO 4 M IN
THE GULF OF SAINT LAWRENCE.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW TO FORM NEAR 41N49W 1009 MB. WITHIN 420
NM NE QUADRANT AND WITHIN 180 NM SE OF A LINE FROM LOW CENTER TO
38N47W TO 31N55W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.30 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 44N43W 1007 MB.
WITHIN 240 NM N AND NE OF A LINE FROM 51N48W TO LOW CENTER TO
41N39W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 46N41W.
.48 HOUR FORECAST LOW JUST E OF AREA NEAR 39N34W 1007 MB. WITHIN
240 NM NE OF A LINE FROM 49N45W TO 43N40W TO 39N35W WINDS 20 TO
30 KT. SEAS 2.5 TO 4.5 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY IN THE GULF OF SAINT LAWRENCE
FROM 47N TO 50N W OF 61W. ELSEWHERE LIGHT FREEZING SPRAY NW OF A
LINE FROM 46N60W TO 51N58W...INCLUDING THE REST OF THE GULF OF
SAINT LAWRENCE.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 55N57W TO 61N61W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY
IN THE GULF OF SAINT LAWRENCE AND W AND NW OF A LINE FROM 53N54W
TO 56N54W TO 62N60W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 46N62W TO 47N60W TO 50N64W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY NW AND N OF A LINE FROM 41N72W TO
47N63W...INCLUDING THE BAY OF FUNDY AND LIGHT TO MODERATE
FREEZING SPRAY W OF A LINE FROM 56N60W TO 59N57W TO 63N59W.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH MAIN LOW JUST E OF THE AREA 41N29W 1000 MB
MOVING SE 15KT. FROM 30N TO 46N E OF 42W WINDS 20 TO 30 KT. SEAS
2.5 TO 5 M.
.24 HOUR FORECAST LOW AND CONDITIONS MOVED WELL E OF AREA.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 60N TO 65N
BETWEEN 60W AND 65W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 51N BETWEEN 43W AND 67W.
.48 HOUR FORECAST DENSE FOG FROM 48N TO 64N BETWEEN 45W AND 64W.
.FORECASTER HYDE. 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 1800 UTC WED DEC 31.
24 HOUR FORECAST VALID 1800 UTC THU JAN 01.
48 HOUR FORECAST VALID 1800 UTC FRI JAN 02.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC STATIONARY FRONT FROM 22N35W TO 20N43W THEN SHEARLINE TO
19N49W AND TO 20N60W. WITHIN 31N35W TO 31N41W TO 29N38W TO 28N35W
TO 31N35W NW WINDS 20 TO 25 KT. SEAS 3.5 TO 4.5 M IN NW SWELL.
ELSEWHERE WITHIN 31N35W TO 31N47W TO 22N54W TO 15N55W TO 14N59W
TO 07N54W TO 07N35W TO 11N42W TO 16N35W TO 31N35W WINDS 20 KT OR
LESS. SEAS 2.5 TO 4 M IN NW TO N SWELL...HIGHEST FAR NE.
.24 HOUR FORECAST WITHIN 31N35W TO 31N40W TO 25N38W TO 17N41W TO
15N50W TO 07N54W TO 09N35W TO 31N35W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN NW TO N SWELL...HIGHEST FAR NE.
.48 HOUR FORECAST WITHIN 08N35W TO 10N41W TO 08N45W TO 07N49W TO
07N40W TO 08N35W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN DECAYING
NW TO N SWELL.
.ATLC COLD FRONT FROM 31N63W TO 26N71W TO 25N77W. E OF FRONT...
WITHIN 31N54W TO 31N63W TO 26N66W TO 25N59W TO 28N56W TO 31N54W
SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M. W OF FRONT...WITHIN 31N63W
TO 31N68W TO 28N64W TO 31N63W WINDS 20 KT OR LESS. SEAS 2.5 TO 3
M IN NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N60W TO 24N66W TO 20N74W. E
OF FRONT...WITHIN 31N49W TO 31N54W TO 31N60W TO 27N60W TO 27N57W
TO 29N54W TO 31N49W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW
SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 31N53W TO 25N60W
THEN WEAKENING STATIONARY FRONT TO 19N71W. E OF COLD FRONT...
WITHIN 31N46W TO 31N53W TO 30N52W TO 30N50W TO 31N46W WINDS 20 KT
OR LESS. SEAS TO 2.5 M IN DECAYING NW SWELL.
.ATLC 24 HOUR FORECAST COLD FRONT JUST NW OF AREA. WITHIN 31N70W
TO 31N79W TO 30N77W TO 30N70.5W TO 31N70W WINDS W TO NW WINDS 20
TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 31N62W TO 26N67W
THEN WEAKENING STATIONARY FRONT TO 20N74W. W OF COLD FRONT...
WITHIN 31N62W TO 31N71W TO 30N69W TO 29N67W TO 31N62W WINDS 20
KT OR LESS. SEAS 2.5 TO 3 M IN NW SWELL.
.GULF OF AMERICA WITHIN 20N92W TO 21N95W TO 20N96W TO 19N96W TO
18N95W TO 19N92W TO 20N92W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN DECAYING N
SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF MEXICO 48 HOUR FORECAST COLD FRONT TO APPROACH NW GULF.
WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. SCATTERED SHOWERS
AND TSTMS N OF 27N W OF 94W.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
$$