HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI NOV 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0000 UTC NOV 28.
24 HOUR FORECAST VALID 0000 UTC NOV 29.
48 HOUR FORECAST VALID 0000 UTC NOV 30.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.36 HOUR FORECAST NEW COMPLEX LOW WITH MAIN LOW 57N48W 980 MB AND
SECOND LOW 58N40W 978 MB. WITHIN 180 NM N AND 480 NM E QUADRANTS
OF MAIN LOW...WITHIN 300 NM E AND 420 NM SE...300 NM S AND 540 NM
SW QUADRANTS OF SECOND LOW...WITHIN 120 NM AND SE OF A FRONT FROM
49N37W TO 41N50W AND WITHIN 60 NM W AND SW OF A LINE FROM 55N58W
TO 59N61W WINDS 35 TO 45 KT. SEAS 4 TO 7 M...HIGHEST NEAR
51N41W.
.42 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 57N47W 974 MB AND
SECOND LOW 58N39W 968 MB. FROM 52N TO 60N E OF 50W WINDS 40 TO 55
KT. SEAS 4.5 TO 9 M...HIGHEST NEAR 59N47W.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 56N47W AND SECOND
LOW 59N38W. WITHIN 120 NM NW SEMICIRCLE OF FIRST LOW AND WITHIN
180 NM SE...BETWEEN 60 NM AND 180 NM W AND BETWEEN 60 NM AND 240
NM NW SEMICIRCLES OF SECOND LOW WINDS 50 TO 65 KT. SEAS 6 TO 11
M. ELSEWHERE FROM 55N TO 60N E OF 53W AND N OF 60N E OF GREENLAND
WINDS 35 TO 50 KT. SEAS 4 TO 8 M. ALSO WITHIN 420 NM W AND 480 NM
NW QUADRANTS OF FIRST LOW WINDS 25 TO 35 KT. SEAS 2.5 TO 5.5 M.
...STORM WARNING...
.COMPLEX LOW WITH FIRST INLAND LOW 50N62W 996 MB MOVING NE 15 KT
AND SECOND LOW 36N70W MOVING NE 45 KT. FRONT EXTENDS FROM
LOW TO 48N56W TO 43N56W TO SECOND LOW TO 31N74W. WITHIN 300 NM
NE...480 NM SE AND 420 NM S QUADRANTS OF FIRST LOW...INCLUDING
THE GULF OF SAINT LAWRENCE AND WITHIN 300 NM E OF FRONT FROM 31N
TO 43N WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M...EXCEPT TO 2.5 M IN
THE GULF OF SAINT LAWRENCE. ELSEWHERE W OF A LINE FROM 41N66W TO
36N70W AND W OF FRONT FROM 36N70W TO 31N74W WINDS 20 TO 30 KT.
SEAS TO 3 M.
.12 HOUR FORECAST FIRST INLAND LOW 53N60W AND SECOND LOW 40N61W
1003 MB. WITHIN 240 NM E OF FRONT FROM 42N57W TO SECOND LOW TO
35N66W WINDS 35 TO 45 KT. SEAS 3.5 TO 6 M...HIGHEST NEAR 41N58W.
.24 HOUR FORECAST FIRST LOW 55N58W 993 MB AND SECOND LOW 48N51W
994 MB. WITHIN 300 NM E AND SE OF A FRONT FROM SECOND LOW TO
43N51W TO 38N56W AND BETWEEN 420 NM AND 1020 NM SW QUADRANT OF
SECOND LOW WINDS 35 TO 45 KT. SEAS 3.5 TO 7 M...HIGHEST NEAR
42N52W. ELSEWHERE BETWEEN 90 NM AND 240 NM NE SEMICIRCLE OF FIRST
LOW...WITHIN 240 NM N AND NE OF A LINE FROM 56N52W TO 49N35W AND
WITHIN 720 NM SE...600 NM S AND 1320 NM SW QUADRANTS OF SECOND
LOW WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST FIRST LOW 54N53W 992 MB AND SECOND LOW
DISSIPATED. BETWEEN 60 NM AND 180 NM S AND SW SEMICIRCLE AND FROM
46N TO 55N E OF 50W WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M. ELSEWHERE
WITHIN 1080 NM SE...900 NM S AND 960 NM SW QUADRANTS...INCLUDING
THE GULF OF SAINT LAWRENCE WINDS 25 TO 35 KT. SEAS 2.5 TO 6
M...EXCEPT TO 3 M IN THE GULF OF SAINT LAWRENCE.
...GALE WARNING...
.LOW 46N47W 1010 MB MOVING E 50 KT. WITHIN 120 NM S OF A LINE
FROM 48N35W TO 45N46W WINDS 35 TO 45 KT. SEAS 4 TO 6 M...HIGHEST
NEAR 47N35W. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM
38N50W TO 50N50W TO 48N35W TO 43N35W TO 38N50W WINDS 25 TO 35 KT.
SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.
...GALE WARNING...
.LOW 62N54W 998 MB MOVING N 10 KT. WITHIN 180 NM S...300 NM SW
AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 66N56W 998 MB AND CONDITIONS DIMINISHED.
...GALE WARNING...
.18 HOUR FORECAST WITHIN 300 NM W AND NW OF A LINE FROM 38N66W TO
41N64W AREA OF W WINDS 30 TO 40 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST CONDITIONS ABSORBED BY LOW 48N51W DESCRIBED IN
STORM WARNING ABOVE.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY W OF A LINE FROM 62N61W TO
65N60W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY WITHIN 90 NM
OF LABRADOR COAST FROM 54N TO 60N...WITHIN 60 NM W OF THE
GREENLAND COAST N OF 64N...WITHIN 60 NM E OF THE GREENLAND COAST
FROM 60N TO 64N AND N OF 64N E OF GREENLAND.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF
60W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY NW AND N OF A
LINE FROM 58N62W TO 64N55W TO 67N56W...WITHIN 60 NM E OF THE
GREENLAND COAST FROM 60N TO 64N...AND N OF 64N E OF GREENLAND.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 65N W OF
60W. ELSEWHERE LIGHT TO MODERATE FREEZING W AND NW OF A LINE FROM
55N59W TO 63N50W AND N OF 65N E OF GREENLAND.
.SYNOPSIS AND FORECAST.
.LOW WELL E OF THE AREA. FROM 50N TO 60N E OF 45W AND N OF 60N E
OF GREENLAND NW TO N WINDS TO 25 KT. SEAS 2.5 TO 4 M...HIGHEST
NEAR 53N35W IN N SWELL.
.24 HOUR FORECAST LOW WELL E OF AREA AND CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 48N
BETWEEN 45W AND 56W...WITHIN THE GULF OF SAINT LAWRENCE N OF 48N
W OF 61W AND N OF 64N W OF GREENLAND.
.24 HOUR FORECAST DENSE FOG FROM 46N TO 51N W OF 42W TO THE COAST
OF NEWFOUNDLAND...FROM 55N TO 60N W OF 44W TO THE COAST OF
LABRADOR AND N OF 65N W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG WITHIN 300 NM NW AND N OF LINE FROM
52N54W TO 55N43W...WITHIN 240 NM N OF A LINE FROM 55N43W TO
56N35W AND FROM 60N TO 64N E OF GREENLAND.
.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 FRI NOV 28.
24 HOUR FORECAST VALID 0000 UTC SAT NOV 29.
48 HOUR FORECAST VALID 0000 UTC SUN NOV 30.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N35W TO 31N45W TO 29N53W TO 25N53W TO 24N50W TO
26N43W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.24 HOUR FORECAST WITHIN 29N43W TO 31N42W TO 31N45W TO 28N50W TO
25N50W TO 24N48W TO 29N43W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE TO E SWELL.
.27 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC WITHIN 21N59W TO 21N63W TO 20N64W TO 18N63W TO 17N61W TO
18N60W TO 21N59W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E
SWELL.
.09 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC 03 HOUR FORECAST WITHIN 31N68W TO 31N74W TO 26N76W TO
26N74W TO 29N71W TO 31N68W SW TO W WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.24 HOUR FORECAST WITHIN 31N68W TO 31N74W TO 26N76W TO 26N74W TO
29N71W TO 31N68W N TO NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN
NW TO N SWELL. WITHIN 26N78W TO 27N78W TO 27N80W TO 24N80W TO
23N79W TO 23N78W TO 26N78W NE WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.48 HOUR FORECAST WITHIN 30N63W TO 31N67W TO 27N80W TO 24N80W TO
24N72W TO 26N67W TO 30N63W...INCLUDING ATLANTIC EXPOSURES...NE
TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.ATLC 30 HOUR FORECAST WITHIN 27N37W TO 28N40W TO 26N40W TO
25N36W TO 26N35W TO 27N37W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN E SWELL.
.48 HOUR FORECAST WITHIN 26N35W TO 28N42W TO 27N47W TO 23N48W TO
20N42W TO 20N35W TO 26N35W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M.
.CARIBBEAN WITHIN 15N72W TO 17N76W TO 16N81W TO 11N83W TO 09N77W
TO 11N70W TO 15N72W...INCLUDING WITHIN 60 NM OF COAST OF
NICARAGUA AND THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 13N77W TO 14N78W TO 14N81W TO 11N82W
TO 10N80W TO 11N77W TO 13N77W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN E SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN 09 HOUR FORECAST WITHIN 22N85W TO 22N87W TO 21N87W TO
21N86W TO 21N85W TO 22N85W...INCLUDING IN YUCATAN CHANNEL...NE
WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 21N81W TO 23N82W TO 22N85W TO 22N87W
TO 19N88W TO 19N85W TO 21N81W...INCLUDING IN YUCATAN CHANNEL...
NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA WITHIN 29N83W TO 30N86W TO 24N97W TO 21N90W TO
24N83W TO 29N83W...INCLUDING STRAITS OF FLORIDA...N TO NE WINDS
20 TO 30 KT. SEAS 2.5 TO 3.0 M. WITHIN 20N96W TO 20N97W TO
19N96W TO 19N95W TO 20N96W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 24N81W TO 27N86W TO 25N97W TO 23N98W TO
18N95W TO 21N90W TO 24N81W...INCLUDING STRAITS OF FLORIDA AND
WITHIN 60 NM OF COAST OF VERACRUZ AND WITHIN 60 NM OF COAST OF
CAMPECHE...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. WITHIN
28N95W TO 29N96W TO 28N97W TO 27N97W TO 27N96W TO 28N95W SE WINDS
20 TO 30 KT. SEAS LESS TO 2.5 M.
.48 HOUR FORECAST WITHIN 25N81W TO 26N82W TO 25N82W TO 24N82W TO
24N81W TO 25N81W...INCLUDING STRAITS OF FLORIDA...NE TO 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 RAMOS. NATIONAL HURRICANE CENTER.
$$