HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED DEC 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 03.
24 HOUR FORECAST VALID 0600 UTC DEC 04.
48 HOUR FORECAST VALID 0600 UTC DEC 05.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 42N66W 986 MB MOVING NE 40 KT. WITHIN 240 NM SE AND 600 NM S
AND SW QUADRANTS WINDS 40 TO 55 KT. SEAS 4 TO 7.5 M. ELSEWHERE
WITHIN 540 NM NE...660 NM SE...780 NM SW AND 240 NM NW QUADRANTS
WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 48N45W 975 MB. WITHIN
120 NM N AND NE OF A FRONT FROM 47N49W TO THE LOW TO
50N36W...BETWEEN 120 NM AND 540 NM SW...60 NM AND 420 NM S AND
180 AND 480 NM SW QUADRANTS WINDS 40 TO 55 KT. SEAS 6 TO 11
M...HIGHEST NEAR 43N51W. ELSEWHERE FROM 34N TO 55N E OF 50W AND
FROM 40N TO 55N BETWEEN 50W AND 55W WINDS 25 TO 40 KT. SEAS 4 TO
7.5 M. ALSO FROM 34N TO 48N BETWEEN 55W AND 62W...INCLUDING THE
GULF OF SAINT LAWRENCE WINDS TO 25 KT. SEAS 3 TO 5.5 M...EXCEPT
TO 3 M IN THE GULF OF SAINT LAWRENCE.
.36 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 51N36W 960 MB.
WITHIN 120 NM W SEMICIRCLE AND FROM 43N TO 48N E OF 40W WINDS 50
TO 65 KT. SEAS 7.5 TO 11 M.
.48 HOUR FORECAST LOW WELL E OF AREA 54N24W 962 MB. WITHIN AN
AREA BOUNDED BY A LINE FROM 42N35W TO 55N35W TO 55N47W TO 44N40W
TO 42N35W WINDS 25 TO 40 KT. SEAS 5 TO 9 M...HIGHEST NEAR 47N35W.
ELSEWHERE FROM 33N TO 55N E OF 50W WINDS TO 25 KT. SEAS 2.5 TO
5.5 M IN MIXED SWELL.
...STORM WARNING...
.LOW 59N38W 970 MB MOVING SE 10 KT. BETWEEN 60 NM AND 420 NM
S...120 NM AND 360 NM SW AND 300 NM AND 480 NM NW QUADRANTS WINDS
45 TO 60 KT. SEAS 8 TO 12.5 M...HIGHEST NEAR 58N40W. ELSEWHERE
BETWEEN 60 NM AND 420 NM NE...WITHIN 540 NM S...SW AND 600 NM NW
QUADRANTS WINDS 30 TO 45 KT. SEAS 4.5 TO 8 M. ALSO FROM 47N TO
60N E OF 50W...FROM 50N TO 60N BETWEEN 50W AND 60W AND FROM 60N
TO 65N E OF 60W TO GREENLAND WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW E OF THE AREA 57N30W 985 MB. FROM 55N TO
60N BETWEEN 40W AND 44W AND N OF 64N E OF GREENLAND WINDS 35 TO
50 KT. SEAS 6 TO 10 M...HIGHEST NEAR 60N42W. ELSEWHERE FROM 52N
TO 60N E OF 50W AND N OF 60N E OF GREENLAND WINDS 25 TO 35 KT.
SEAS 4 TO 7.5 M...HIGHEST NEAR 62N35W. ALSO FROM 52N TO 56N
BETWEEN 54W AND 50W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW SE OF AREA WITH NEW LOW TO FORM NEAR 59N51W
1000 MB. WITHIN 180 NM NW AND N OF A LINE FROM 57N48W TO 58N42W
TO 58N40W AND FROM 55N TO 63N E OF 40W WINDS 35 TO 50 KT. SEAS 5
TO 9 M...HIGHEST NEAR 60N45W. ELSEWHERE FROM 55N TO 60N E OF 50W
AND N OF 60N E OF GREENLAND WINDS 25 TO 35 KT. SEAS 3.5 TO 6.5 M.
...GALE WARNING...
.24 HOUR FORECAST LOW JUST NW OF THE AREA 68N62W 994 MB. N OF 65N
W OF GREENLAND WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
..48 HOUR FORECAST LOW WELL NW OF THE AREA. WITHIN 180 NM W OF A
LINE FROM 50N51W TO 60N54W TO 67N58W AREA OF SE TO S WINDS TO 25
KT. SEAS 2.5 TO 3.5 M
...GALE WARNING...
.48 HOUR FORECAST NEW INLAND LOW 52N61W 985 MB. WITHIN 960 NM
SE...1140 NM S AND 1020 NM SW QUADRANTS...INCLUDING THE GULF OF
SAINT LAWRENCE WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M...EXCEPT 2.5 TO
4 M IN THE GULF OF SAINT LAWRENCE.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY WITHIN 180 NM OF THE COAST OF
LABRADOR FROM 52N TO 60N AND W OF A LINE FROM 60N61W TO 67N59W.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY IN THE GULF OF SAINT
LAWRENCE AND W AND NW OF A LINE FROM 50N43W TO 54N44W TO
66N59W...N OF 65N W OF GREENLAND AND N OF 65N E OF GREENLAND.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE
FROM 65N58W TO 67N58W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY
IN THE GULF OF SAINT LAWRENCE AND W AND NW OF A LINE FROM 52N53W
TO 61N47W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY IN THE GULF OF
SAINT LAWRENCE FROM 46N TO 50N W OF 61W. ELSEWHERE LIGHT TO
MODERATE FREEZING SPRAY IN THE GULF OF SAINT LAWRENCE BETWEEN 58W
AND 61W. ALSO LIGHT FREEZING SPRAY NW OF A LINE FROM 39N74W TO
48N58W...W OF A LINE FROM 55N57W TO 67N60W AND WITHIN 120 NM W OF
GREENLAND N OF 62N.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM NW AND
N OF A LINE FROM 42N70W TO 44N66W...INCLUDING THE BAY OF
FUNDY...WITHIN 180 NM NW AND N OF A LINE FROM 45N61W TO
47N55W...WITHIN 120 NM N AND NE OF A LINE FROM 62N56W TO 57N44W
AND WITHIN 180 NM W AND NW OF A LINE FROM 57N39W TO 62N37W.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM NW AND N OF A LINE FROM
47N51W TO 50N35W...FROM 55N TO 59N BETWEEN 42W AND 45W AND N OF
60N W OF 40W TO GREENLAND.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 54N BETWEEN 52W AND
59W...W OF A LINE FROM 56N56W TO 64N60W AND WITHIN 120 NM NE OF A
LINE FROM 60N54W TO 54N46W.
.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 0600 UTC WED DEC 3.
24 HOUR FORECAST VALID 0600 UTC THU DEC 4.
48 HOUR FORECAST VALID 0600 UTC FRI DEC 5.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC TROUGH FROM 28N69W TO 14N63W. WITHIN 14N35W TO 20N50W TO
16N56W TO 13N54W TO 10N46W TO 12N35W TO 14N35W NE TO E WINDS 20
TO 25 KT. SEAS 3 TO 3.5 M. ELSEWHERE WITHIN 31N35W TO 26N46W TO
31N61W TO 10N59W TO 09N35W TO 31N35W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN E SWELL.
.24 HOUR FORECAST TROUGH DISSIPATED. WITHIN 31N35W TO 23N48W TO
22N61W TO 11N60W TO 07N52W TO 08N35W TO 31N35W E WINDS 20 TO 25
KT. SEAS 2.5 TO 3.5 M IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 25N35W TO 20N63W TO 10N61W TO 07N55W TO
11N35W TO 25N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E
SWELL.
.ATLC COLD FRONT FROM 31N78W TO 28N81W. WITHIN 31N70W TO 31N74W
TO 30N73W TO 30N72W TO 30N71W TO 31N70W SW WINDS 20 TO 25 KT.
SEAS 2.5 TO 3 M. ELSEWHERE WITHIN 31N70W TO 31N79W TO 30N78W TO
29N75W TO 30N74W TO 30N71W TO 31N70W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN SW TO W SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA 36 HOUR FORECAST WITHIN 29N86W TO 30N89W TO
30N95W TO 27N97W TO 26N97W TO 28N92W TO 29N86W E TO SE WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 25N97W TO 23N98W TO 23N97W TO 24N96W TO
25N97W NW TO N 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 DELGADO. NATIONAL HURRICANE CENTER.
$$