HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 09.
24 HOUR FORECAST VALID 0600 UTC DEC 10.
48 HOUR FORECAST VALID 0600 UTC DEC 11.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 50N51W 975 MB MOVING NE 20 KT AND INTESTIFYING. WITHIN 180
NM S AND 120 NM SW QUADRANTS WINDS 50 TO 65 KT. SEAS 4 TO 8 M.
ELSEWHERE WITHIN 120 NM NE...240 NM E...420 NM S...360 NM
SW...AND 120 NM W QUADRANTS WINDS 35 TO 50 KT. SEAS 3.5 TO 7 M.
ALSO FROM 40N TO 52N BETWEEN 40W AND 65W WINDS 25 TO 40 KT. SEAS
2.5 TO 6 M...HIGHEST E OF 60W...EXCEPT SEAS 2.5 TO 5 M IN THE
GULF OF SAINT LAWRENCE.
.24 HOUR FORECAST LOW 55N40W 954 MB. WITHIN 180 NM S AND 240 NM
SW QUADRANTS...AND WITHIN 60 NM NW OF A LINE FROM 58N45W TO
60N42W TO 63N41W WINDS 55 TO 70 KT. SEAS 6 TO 13 M...HIGHEST S OF
CENTER. ELSEWHERE WITHIN 360 NM SE...480 NM S...AND 420 NM SW
QUADRANTS...AND WITHIN 90 NM NW OF A LINE FROM 57N47W TO 58N43W
TO 61N40W TO 61N40W...AND N OF 61N E OF GREENLAND WINDS 40 TO 55
KT. SEAS 5 TO 11 M...HIGHEST FROM 50N TO 55N BETWEEN 35W AND 45W.
ALSO FROM 42N TO 60N E OF 61W...AND N OF 60N E OF GREENLAND WINDS
25 TO 40 KT. SEAS 3 TO 8 M..HIGHEST E OF 50W.
.48 HOUR FORECAST LOW E OF AREA NEAR 56N31W 954 MB. E OF A LINE
FROM 46N37W TO 51N43W TO 55N40W TO 52N35W...AND FROM 58N TO 63N
BETWEEN 40W AND 43W WINDS 50 TO 65 KT. SEAS 8 TO 14 M...HIGHEST E
OF 40W. ELSEWHERE E OF A LINE FROM 42N38W TO 44N42W TO 55N49W TO
56N49W...AND WITHIN 120 NM W AND NW OF A LINE FROM 55N40W TO
62N39W TO 64N35W WINDS 35 TO 50 KT. SEAS 6 TO 11 M. ALSO FROM 40N
TO 60N E OF 50W...FROM 50N TO 60N BETWEEN 60W AND 70W...AND N OF
60N E OF GREENLAND WINDS 25 TO 35 KT. SEAS 3 TO 7 M... HIGHEST E
OF 50W. OTHERWISE FROM 33N TO 40N E OF 45W WINDS 20 TO 30 KT.
SEAS 3 TO 5 M.
...HURRICANE FORCE WIND WARNING...
.LOW 57N47W 984 MB MOVING W 10 KT. WITHIN 60 NM W AND NW OF A
LINE FROM 58N47W TO 58N44W TO 60N42W TO 60N42W WINDS 45 TO 60 KT.
SEAS 5 TO 9 M. ELSEWHERE N OF 60N E OF GREENLAND...S OF 60N TO A
LINE FROM 60N40W TO 57N47W TO 59N51W TO 60N44W...AND E OF A LINE
FROM 53N35W TO 55N42W TO 47N35W WINDS 30 TO 45 KT. SEAS 4 TO 8 M.
ALSO FROM 34N TO 60N E OF 40W...AND FROM 52N TO 60N BETWEEN 40W
AND 56W WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.12 HOUR FORECAST LOW 57N49W 974 MB. WITHIN 60 NM NW OF A LINE
FROM 58N47W TO 59N44W TO 62N41W WINDS 50 TO 65 KT. SEAS 6 TO 9
FT.
.24 HOUR FORECAST LOW 58N56W 981 MB. CONDITIONS DESCRIBED ABOVE
BY LOW 55N40W.
...STORM WARNING...
.LOW 34N66W 1004 MB MOVING NE 40 KT. S OF 42N W OF 65W WINDS 25
TO 40 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR 36N72W.
.06 HOUR FORECAST LOW 34N65W 1002 MB. WITHIN 180 NM NW QUADRANT
WINDS 35 TO 50 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST 39N39W 998 MB. WITHIN 150 NM NW...480 NM
SW...AND 300 NM S AND SE QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 7
M. ELSEWHERE FROM 31N TO 42N BETWEEN 35W AND A LINE FROM 40N50W
TO 31N64W WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
...STORM WARNING...
.LOW 33N61W 1004 MB MOVING NE 40 KT. FROM 31N TO 35N BETWEEN 44W
AND 65W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.12 HOUR FORECAST LOW 39N42W 997 MB. WITHIN 240 NM SE SEMICRICLE
WINDS 35 TO 50 KT. SEAS 4 TO 6 M.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
...GALE WARNING...
.N OF 60N W OF 58W AREA OF NE TO E WINDS 20 TO 30 KT. SEAS LESS
THAN 4 M.
.06 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 61N BETWEEN 55W AND 61W WINDS 25 TO 35 KT.
SEAS LESS THAN 4 M.
...GALE WARNING...
.30 HOUR FORECAST N OF 35N W OF 60W AREA OF SW WINDS 25 TO 35 KT.
SEAS LESS THAN 4 M.
.48 HOUR FORECAST LOW INLAND NEAR 46N73W 984 MB. WITHIN 240 NM SE
AND S OF A LINE FROM 42N62W TO 37N73W WINDS 30 TO 45 KT. SEAS 3
TO 5 M. ELSEWHERE FROM 31N TO 60N W OF 50W WINDS 25 TO 40 KT.
SEAS 2.5 TO 4.5 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY SW OF A LINE FROM 56N60W TO
54N56W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 42N70W TO 46N52W TO 53N46W TO 58N53W TO 55N48W TO 61N65W
INCLUDING THE GULF OF SAINT LAWRENCE...AND N OF 64N W OF 59W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 45N60W TO 47N56W INCLUDING THE GULF OF SAINT LAWRENCE...AND
W OF A LINE FROM 47N53W TO 50N46W TO 55N50W TO 59N60W...AND N OF
62N W OF 58W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 49N
WITHIN THE GULF OF SAINT LAWRENCE...FROM 5N1 TO 57N W OF
50W...AND N OF 61N W OF 57W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM N OF A
LINE FROM 59N63W TO 56N45W...FROM 58N TO 64N BETWEEN 38W AND
44W...AND FROM 48N TO 52N BETWEEN 45W AND 55W.
.24 HOUR FORECAST DENSE FOG N OF 59N BETWEEN 40W AND 44W...N OF
62N E OF 37W...WITHIN 120 NM E AND NE OF A LINE FROM 58N55W TO
54N50W TO 52N40W...AND FROM 57N TO 60N W OF 59W.
.48 HOUR FORECAST DENSE FOG N OF 64N E OF 37W...N OF 57N BETWEEN
37W AND 41W...FROM 54N TO 57N BETWEEN 40W AND 45W...FROM 55N TO
57N W OF 55W...FROM 48N TO 52N BETWEEN 48W AND 54W...AND N OF 48N
WITHIN THE GULF OF SAINT LAWRENCE.
.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 0600 UTC TUE DEC 09.
24 HOUR FORECAST VALID 0600 UTC WED DEC 10.
48 HOUR FORECAST VALID 0600 UTC THU DEC 11.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N69W TO 27N75W TO 24N81W. WITHIN 31N69W
TO 31N80W TO 29N79W TO 29N73W TO 30N71W TO 31N69W NW TO N WINDS
20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST COLD FRONT FROM 31N58W TO 29N64W AND
STATIONARY FRONT TO 29N78W. WITHIN 31N46W TO 31N58W TO 30N54W TO
30N49W TO 31N46W SW TO W WINDS 20 TO 25 KT. SEAS 3 TO 4 M IN
NW SWELL. ELSEWHERE WITHIN 31N44W TO 31N60W TO 31N68W TO 31N76W
TO 28N74W TO 27N59W TO 28N50W TO 31N44W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN NW TO N SWELL.
.48 HOUR FORECAST STATIONARY FRONT FROM 31N35W TO 30N40W TO
31N47W. WITHIN 31N35W TO 31N50W TO 31N62W TO 24N63W TO 27N50W TO
28N41W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N
SWELL...HIGHEST NE.
.ATLC COLD FRONT FROM 31N64W TO 26N71W TO 25N76W. WITHIN 31N51W
TO 31N64W TO 28N67W TO 28.5N58W TO 30N54W TO 31N51W SW WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 31N49W TO 31N55W
TO 31N64W TO 27N66W TO 28N57W TO 27N49W TO 31N49W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL...EXCEPT IN W TO NW SWELL
W OF 57W.
.24 HOUR FORECAST COLD FRONT TO BE OVERTAKEN BY THE COLD FRONT
TO ITS W. SEE ABOVE PARAGRAPH FOR CONDITIONS.
.ATLC WITHIN 31N35W TO 25N42W TO 31N49W TO 16N55W TO 13N53W TO
10N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 4 M IN NW TO N
SWELL...HIGHEST NE PART.
.24 HOUR FORECAST WITHIN 31N35W TO 31N44W TO 28N48W TO 22N43W TO
18N53W TO 07N46W 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 20N57W TO 16N60W TO
07N53W TO 07N35W TO 27N35W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M.
.ATLC WITHIN 16N55W TO 15N60W TO 10N60W TO 08N55W TO 09N50W TO
13N53W TO 16N55W...INCLUDING IN ATLC EXPOSURES AND
PASSAGES...WINDS
20 KT OR LESS. SEAS 2.5 N IN NE TO E SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.CARIBBEAN 18 HOUR FORECAST WITHIN 12N73W TO 13N73W TO 13N75W TO
12N75W 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.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 13N72W TO 14N75W TO 13N76W TO 12N77W TO
11N76W TO 12N73W TO 13N72W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M.
.GULF OF AMERICA COLD FRONT FROM 24N81W TO 21N87W. WITHIN 20N93W
TO 20N95W TO 20N96W TO 19N96W TO 18N93.5W TO 20N93W...INCLUDING
WITHIN 60 NM OF COAST OF VERACRUZ...NW TO N WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 26N87W TO 25N93W TO 19N96.5W
TO 18N93W TO 21N93W TO 24N91W TO 26N87W WINDS 20 KT OR LESS.
SEAS TO 2.5 M IN DECAYING N TO NE SWELL.
.24 HOUR FORECAST STATIONARY FRONT FROM 24N81W TO 21N87W. 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 AGUIRRE. NATIONAL HURRICANE CENTER.
$$