HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC TUE DEC 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC DEC 09.
24 HOUR FORECAST VALID 0000 UTC DEC 10.
48 HOUR FORECAST VALID 0000 UTC DEC 11.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 47N55W 983 MB MOVING NE 25 KT AND RAPIDLY INTESTIFYING.
WITHIN 120 NM SW QUADRANT WINDS 45 TO 60 KT. SEAS 3 TO 5 M.
ELSEWHERE WITHIN 180 NM NE...300 NM E...420 NM S...AND 240 NM W
QUADRANTS WINDS 30 TO 45 KT. SEAS 3 TO 5.5 M. ALSO FROM 35N TO
50N BETWEEN 47W AND 70W WINDS 25 TO 35 KT. SEAS 2.5 TO 5
M...EXCEPT SEAS TO 3.5 M IN THE GULF OF SAINT LAWRENCE.
.06 HOUR FORECAST LOW 49N50W 974 MB. WITHIN 90 NM SW SEMICRICLE
WINDS 50 TO 65 KT. SEAS 4 TO 6.5 M.
.24 HOUR FORECAST LOW 54N43W 955 MB. WITHIN 120 NM S
SEMICRICLE...AND WITHIN 60 NM NW OF A LINE FROM 58N46W TO 60N42W
WINDS 60 TO 75 KT. SEAS 6 TO 12 M...HIGHEST S OF CENTER.
ELSEWHERE WITHIN 180 NM SE...300 NM S...AND 240 NM SW
QUADRANTS...AND WITHIN 90 NM N OF A LINE FROM 58N48W TO 58N46W TO
60N42W TO 62N41W WINDS 50 TO 65 KT. SEAS 5 TO 12 M...HIGHEST FROM
50N TO 55N BETWEEN 37W AND 49W. ALSO WITHIN 300 NM E...480 NM SE
AND S...540 NM SW...AND 480 NM W QUADRANTS...FROM 57N TO 60N
BETWEEN 40W AND 50W...AND N OF A LINE FROM 60N40W TO 61N40W TO
62N35W WINDS 35 TO 50 KT. SEAS 4 TO 8 M. OTHERWISE FROM 43N TO
60N E OF 65W WINDS 25 TO 35 KT. SEAS 3 TO 7 M...HIGHEST E OF
50W.
.48 HOUR FORECAST LOW 55N36W 957 MB. BETWEEN 180 NM S AND 540 NM
S...AND BETWEEN 180 NM AND 480 NM SW QUADRANTS...AND WITHIN 60 NM
W AND NW OF A LINE FROM 58N42W TO 64N35W WINDS 55 TO 70 KT. SEAS
6 TO 14 M...HIGHEST S AND SW OF CENTER. ELSEWHERE WITHIN 660 NM S
AND 540 NM SW QUADRANTS...AND WITHIN 120 NM W AND N OF A LINE
FROM 55N43W TO 60N39W TO 63N35W WINDS 40 TO 55 KT. SEAS 5 TO 10
M. ALSO E OF A LINE FROM 39N42W TO 56N60W...AND N OF 56N E OF 45W
WINDS 25 TO 40 KT. SEAS 3 TO 8 M...HIGHEST S OF CENTER. OTHERWISE
FROM 31N TO 40N E OF 50W WINDS 20 TO 30 KT. SEAS 3 TO 5 M.
...HURRICANE FORCE WIND WARNING...
.LOW 56N45W 985 MB MOVING W 10 KT. WITHIN 90 NM NW OF A LINE FROM
58N47W TO 58N45W TO 60N41W TO 61N40W WINDS 45 TO 60 KT. SEAS 5 TO
9 M. ELSEWHERE N OF 60N E OF GREENLAND...S OF 60N TO A LINE FROM
60N39W TO 57N46W TO 57N48W TO 58N50W TO 60N44W...AND E OF A LINE
FROM 43N35W TO 53N45W TO 57N50W TO 53N35W WINDS 30 TO 45 KT. SEAS
4 TO 8 M. ALSO S OF 50N E OF 47W...FROM 50N TO 60N E OF 56W WINDS
20 TO 30 KT. SEAS 3 TO 6 M.
.18 HOUR FORECAST LOW 57N50W 973 MB. WITHIN 60 NM NW OF A LINE
FROM 58N48W TO 59N43W TO 62N41W WINDS 50 TO 65 KT. SEAS 6 TO 9
FT.
.24 HOUR FORECAST LOW 57N52W 974 MB. CONDITIONS DESCRIBED ABOVE
BY LOW 54N43W.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 55N36W
DESCRIBED ABOVE.
...STORM WARNING...
.LOW 32N70W 1008 MB MOVING NE 40 KT. N OF 31N W OF 70W WINDS 25
TO 40 KT. SEAS 2.5 TO 5 M.
.06 HOUR FORECAST LOW 33N69W 1004 MB. WITHIN 240 NM NW QUADRANT
WINDS 35 TO 50 KT. SEAS 3 TO 5.5 M.
.24 HOUR FORECAST 37N49W 1001 MB. WITHIN 150 NM NW...300 NM SW
AND S...AND 360 NM SE QUADRANTS WINDS 30 TO 45 KT. SEAS 4 TO 6 M.
ELSEWHERE FROM 31N TO 43N BETWEEN 40W AND A LINE FROM 43N50W TO
31N70W WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
...STORM WARNING...
.LOW 32N65W 1006 MB MOVING NE 40 KT. FROM 31N TO 35N BETWEEN 50W
AND 70W WINDS 25 TO 35 KT. SEAS LESS THAN 4 M.
.24 HOUR FORECAST LOW 40N37W 994 MB. WITHIN 300 NM SE QUADRANT
WINDS 35 TO 50 KT. SEAS 4 TO 6 M. ELSEWHERE FROM 32N TO 43N E OF
40W WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
...GALE WARNING...
.N OF 60N W OF 56W AREA OF NE TO E WINDS 20 TO 30 KT. SEAS LESS
THAN 4 M.
.12 HOUR FORECAST N OF 60N W OF 58N AREA OF NE WINDS 25 TO 35 KT.
SEAS LESS THAN 4 M.
.24 HOUR FORECAST N OF 60N W OF 57W AREA OF N WINDS 25 TO 35 KT.
SEAS LESS THAN 4 M.
.48 HOUR FORECAST N OF 55N BETWEEN 55W AND 63W WINDS 25 TO 35 KT.
SEAS LESS THAN 4 M.
...GALE WARNING...
.36 HOUR FORECAST N OF 36N W OF 60W AREA OF SW WINDS 25 TO 35 KT.
SEAS LESS THAN 4 M.
.48 HOUR FORECAST LOW INLAND NEAR 45N76W 989 MB. FROM 31N TO 48N
W OF 50W WINDS 25 TO 40 KT. SEAS TO 4 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY W OF 65W IN THE GULF OF SAINT
LAWRENCE...AND SW OF A LINE FROM 56N60W TO 55N56W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 42N70W TO
44N60W TO 50N49W TO 54N47W TO 56N50W TO 61N64W INCLUDING THE GULF
OF SAINT LAWRENCE.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY SW OF A LINE
FROM 56N60W TO 55N56W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY
N OF A LINE FROM 44N68W TO 44N64W TO 56N58W INCLUDING THE GULF OF
SAINT LAWRENCE...AND W OF A LINE FROM 57N53W TO 50N47W TO
54N49W TO 60N61W...AND N OF 63N W OF 58W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 60N64W TO 64N58W...W OF A LINE FROM 50N56W TO 52N50W TO
54N50W TO 57N58W...AND N OF 49N WITHIN THE GULF OF SAINT
LAWRENCE.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM S OF A
LINE FROM 60N57W TO 57N47W TO 53N38W...FROM 58N TO 64N BETWEEN
39W AND 44W...AND FROM 46N TO 60N BETWEEN 48W AND 58W.
.24 HOUR FORECAST DENSE FOG N OF A LINE FROM 59N44W TO
64N35W...FROM 52N TO 57N BETWEEN 35W AND 50W...AND FROM 57N TO
61N W OF 50W.
.48 HOUR FORECAST DENSE FOG FROM 54N TO 60N BETWEEN 40W AND
46W...FROM 55N TO 57N W OF 57W...AND FROM 60N TO 64N BETWEEN
GREENLAND AND A LINE FROM 60N40W TO 63N35W.
.FORECASTER EHRBAR. 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 09.
24 HOUR FORECAST VALID 0000 UTC WED DEC 10.
48 HOUR FORECAST VALID 0000 UTC THU DEC 11.
.WARNINGS.
...GULF OF AMERICA GALE WARNING...
.COLD FRONT FROM 26N81W TO 23N87W TO 18N94W. 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 3 TO 4 M.
ELSEWHERE WITHIN 22N92W TO 22N96W TO 26N96W TO 20N97W TO 19N96W
TO 18.5N94W TO 20N93W TO 22N92W N WINDS 20 TO 30 KT. SEAS 2.5 TO
3 M. REMAINDER OF AREA WITHIN 26N86W TO 27N90W TO 27N91W TO
22N96W TO 22N92W TO 21N95W TO 26N86W N WINDS 20 TO 25 KT. SEAS
2.5 TO 3 M.
.03 HOUR FORECAST COLD FRONT FROM 25N81W TO 23N86W TO 18N93W.
WITHIN 20N93W TO 20N96W TO 19N96W TO 19N94W TO 20N93W...INCLUDING
WITHIN 60 NM OF COAST OF VERACRUZ...N WINDS 25 TO 30 KT. SEAS
2.5 TO 3.5 M. ELSEWHERE WITHIN 20N93W TO 19N95W TO 18N94W TO
19N94W TO 20N93W N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
REMAINDER OF AREA WITHIN 24N91W TO 26N87W TO 27N90W TO 24N96W TO
20N96W TO 20N94W TO 24N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M
IN NW TO N SWELL.
.24 HOUR FORECAST STATIONARY FRONT FROM 24N81W TO 21N89W. WITHIN
20N92W TO 19N94.5W TO 19N93W TO 19.5N92W TO 20N92W WINDS 20 KT
OR LESS. SEAS TO 2.5 M IN DECAYING N SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N73W TO 28N76W TO 27N80W. WITHIN 31N73W
TO 31N80W TO 29N80W TO 31N60W TO 26N68W 30N79W TO 30N78W TO
30N75W TO 31N73W NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST COLD FRONT FROM 31N60W TO 26N68W AND
STATIONARY FRONT TO 25N80W. WITHIN 31N47W TO 31N60W TO 29N59W TO
28.5N57W TO 29N49W TO 31N47W SW TO W WINDS 20 TO 25 KT. SEAS 3 TO
4 M. ELSEWHERE WITHIN 31N44W TO 31N60W TO 31N70W TO 31N76W TO
29N73W TO 27N60W TO 28N50W TO 31N44W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN NW TO N SWELL.
.48 HOUR FORECAST COLD FRONT WEAKENING FROM 31N41W TO 30N43W AND
STATIONARY FRONT TO 31N53W. WITHIN 31N36W TO 31N51W TO 31N64W TO
24N67W TO 27N55W TO 28N43W TO 31N36W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN N SWELL.
.ATLC COLD FRONT FROM 31N67W TO 27N72W TO 25N78W. WITHIN 31N57W
TO 31N62W TO 31N67W TO 28N71W TO 28N64W TO 29N58W TO 31N57W SW
WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M. ELSEWHERE WITHIN 31N53W TO
31N60W TO 31N67W TO 28N72W TO 27N64W TO 28N58W TO 31N53W WINDS
20 KT OR LESS. SEAS 2.5 M IN SW TO W SWELL.
.24 HOUR FORECAST COLD FRONT TO BE OVERTAKEN BY NEW COLD FRONT
FROM 31N60W TO 26N68W AND STATIONARY FRONT TO 25N80W. CONDITIONS
AS DESCRIBED IN ABOVE PARAGRAPH.
.ATLC WITHIN 31N35W TO 25N42W TO 31N53W TO 16N53W TO 14N47W TO
19N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN NW TO
N SWELL...HIGHEST NE PART.
.24 HOUR FORECAST WITHIN 31N35W TO 31N44W TO 28N48W TO 22N43W TO
18N49W TO 08N45W TO 08N35W TO 31N35W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 27N35W TO 23N43W TO 20N55W TO 12N58W TO
07N52W TO 07N35W TO 27N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M
IN N SWELL.
.ATLC WITHIN 17N54W TO 16N60W TO 12N59W TO 08N55W TO 08N47W TO
12N51W TO 17N54W...INCLUDING IN ATLC EXPOSURES AND
PASSAGES...WINDS
20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 19N49W TO 16N56W TO 12N55W TO 10N58W TO
08N56W TO 08N44W TO 19N49W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE
TO E SWELL.
.48 HOUR FORECAST WITHIN 17N45W TO 20N52W TO 19N55W TO 14N56W TO
07N53W TO 07N42W TO 17N45W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M.
.CARIBBEAN 24 HOUR FORECAST WITHIN 12N73W TO 13N73W TO 13N74W TO
12N74W TO 11N70W TO 12N70W TO 12N73W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 14N72W TO 14N73W TO 13N74W TO 14N76W TO
12N76W TO 12N72W TO 14N72W 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 AGUIRRE. NATIONAL HURRICANE CENTER.
$$