North Atlantic High Seas Forecast

FZNT01 KWBC 010422
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON DEC 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0000 UTC DEC 01. 
24 HOUR FORECAST VALID 0000 UTC DEC 02.
48 HOUR FORECAST VALID 0000 UTC DEC 03.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW E OF AREA NEAR 58N28W 958 MB MOVNG E
15 KT. NE OF A LINE FROM 61N48W TO 50N35W WINDS 35 TO 50 KT. SEAS
5.5 TO 10 M. ELSEWHERE N OF 41N E OF 52W WINDS 25 TO 35 KT. SEAS
4 TO 7 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER WELL E OF AREA
57N18W 965 MB. E OF A LINE FROM 49N35W TO 60N45W TO 66N35W WINDS
25 TO 40 KT. SEAS 5 TO 8 M. ELSEWHERE N OF 41N E OF 56W WINDS
LESS THAN 25 KT. SEAS 4 TO 6 M. 
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED WELL E OF
AREA. 

...STORM WARNING...
.LOW INLAND NEAR 46N76W 1007 MB MOVING NE 40 KT. NW OF A LINE
FROM 37N73W TO 42N66W TO 50N63W WINDS 20 TO 30 KT. SEAS LESS THAN
4 M.
.12 HOUR FORECAST LOW 49N62W 1004 MB. WITHIN 240 NM E SEMICIRCLE
WINDS 25 TO 35 KT. SEAS LESS THAN 4 M.
.24 HOUR FORECAST LOW 54N55W 989 MB. FROM 46N TO 54N BETWEEN 47W
AND 54W WINDS 35 TO 45 KT. SEAS 3.5 TO 5 M. ELSEWHERE FROM 45N TO
58N BETWEEN 43W AND 67W WINDS 25 TO 35 KT. SEAS LESS THAN 4 M. 
.30 HOUR FORECAST LOW 55N52W 979 MB. BETWEEN 60 NM AND 180 NM W
SEMICIRCLE WINDS 40 TO 55 KT. SEAS 3 TO 5 M. 
.48 HOUR FORECAST LOW 58N43W 975 MB. FROM 59N TO 61N BETWEEN 42W
AND 47W...AND WITHIN 240 NM S OF A LINE FROM 54N35W TO 57N42W TO
59N54W WINDS 40 TO 55 KT. SEAS 6.5 TO 10 M. ELSEWHERE N OF A LINE
FROM 42N35W TO 48N43W E OF 43W...AND WITHIN 840 NM N OF A LINE
FROM 48N43W TO 54N65W WINDS 25 TO 40 KT. SEAS 4 TO 8 M. 

...STORM WARNING...
.36 HOUR FORECAST NEW LOW 33N80W 1009 MB AND RAPIDLY
INTENSIFYING. WITHIN 240 NM SE OF A LINE FROM 36N74W TO 31N82W
WINDS 25 TO 35 KT. SEAS LESS THAN 4 M. 
.42 HOUR FORECAST LOW 38N74W 1000 MB. WITHIN 120 NM SE OF A LINE
FROM 38N73W TO 34N77W WINDS 40 TO 50 KT. SEAS 3.5 TO 4.5 M. 
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.


...STORM WARNING...
.24 HOUR FORECAST NEW LOW 42N56W 1008 MB AND RAPIDLY
INTENSIFYING. FROM 38N TO 45N BETWEEN 45W AND 62W WINDS 25 TO 35
KT. SEAS TO 4 M. 
.42 HOUR FORECAST LOW 52N36W 984 MB. WITHIN 240 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 4.5 TO 6 M. 
.48 HOUR FORECAST LOW 40N71W 990 MB. FROM 35N TO 41N BETWEEN 66W
AND 73W WINDS 35 TO 50 KT. SEAS 4 TO 5.5 M. ELSEWHERE FROM 31N TO
68N BETWEEN 61W AND 76W WINDS 25 TO 35 KT. SEAS TO 4 M. 

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 66N61W 1001 MB. N OF 63N BETWEEN 54W
AND 61W WINDS 25 TO 35 KT. SEAS TO 4 M. 
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED N OF AREA.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 57N E OF 40W. 
.24 HOUR FORECAST DENSE FOG FROM 51N TO 60N BETWEEN 47W AND 61W.

.48 HOUR FORECAST DENSE FOG FROM 56N TO 62N E OF 53W. 

.LIGHT TO MODERATE FREEZING SPRAY N OF 50N W OF 53W. 
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 56N W OF
57W...W OF 62W WITHIN THE GULF OF SAINT LAWRENCE...AND WITHIN 90
NM OF GREENLAND W COAST N OF 60N.  
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 47N65W TO 53N50W TO 67N59W.

.FORECASTER POCHE. 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 MON DEC 1.
24 HOUR FORECAST VALID 0000 UTC TUE DEC  2.
48 HOUR FORECAST VALID 0000 UTC WED DEC  3.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC TROUGH FROM 25N53W TO 07N54W. WITHIN 28N35W TO 29N56W TO 
20N59W TO 14N39W TO 16N35W TO 28N35W E WINDS 20 TO 30 KT. SEAS 
2.5 TO 3.5 M IN E SWELL.
.24 HOUR FORECAST TROUGH FROM 28N61W TO 10N60W. WITHIN 29N35W TO
31N58W TO 22N64W TO 12N45W TO 14N35W TO 29N35W E WINDS 20 TO 25 
KT. SEAS 2.5 TO 3.5 M IN E SWELL.
.ATLC 48 HOUR FORECAST TROUGH FROM 28N61W TO 19N65W. WITHIN 
18N35W TO 18N38W TO 18N42W TO 16N42W TO 14N38W TO 14N35W TO 
18N35W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M IN NE SWELL. 
ELSWHERE WITHIN 28N55W TO 30N56W TO 28N60W TO 25N59W TO 25N56W TO
28N55W SE WINDS 20 TO 30 KT. SEAS 3 TO 3.5 M. REMAINDER OF AREA 
WITHIN 30N35W TO 27N45W TO 31N57W TO 27N63W TO 10N47W TO 11N35W 
TO 30N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN E SWELL.

.ATLC 30 HOUR FORECAST WITHIN 31N76W TO 31N81W TO 29N81W TO
28N77W TO 30N76W TO 31N76W SE TO S WINDS 20 TO 25 KT. SEAS
BUILDING TO 2.5 M.
.48 HOUR FORECAST WITHIN 31N71W TO 31N80W TO 30N79W TO 29N77W TO
30N75W TO 31N71W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.

.GULF OF AMERICA STATIONARY FRONT FROM 31N88W TO 25N98W. WITHIN 
30N93W TO 30N94W TO 28N97W TO 26N97W TO 22N98W TO 25N96W TO 
30N93W NE WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST STATIONARY FRONT FROM 29N83W TO 23N98W. 
CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.GULF OF AMERICA 30 HOUR FORECAST COLD FRONT FROM 30N86W TO
22N98W. WITHIN 30N85W TO 30N86W TO 31N87W TO 30N88W TO 29N88W TO
29N86W TO 30N85W SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. 
.42 HOUR FORECAST COLD FRONT FROM 27N83W TO 19N96W. CONDITIONS 
IMPROVE. 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 DELGADO. NATIONAL HURRICANE CENTER.

$$