North Atlantic High Seas Forecast

FZNT01 KWBC 301016
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN NOV 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC NOV 30. 
24 HOUR FORECAST VALID 0600 UTC DEC 01.
48 HOUR FORECAST VALID 0600 UTC DEC 02.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 59N36W 952 MB MOVING E 20 KT. BETWEEN 90 AND 180 NM NW
SEMICIRCLE WINDS 55 TO 65 KT. SEAS 7 TO 10 M. ALSO E OF A LINE
FROM 52N46W TO 67N42W WINDS 40 TO 55 KT. SEAS 4.5 TO 9.5 M.
ELSEWHERE FROM 45N TO 64N E OF 57W WINDS 25 TO 40 KT. SEAS 2.5 TO
6 M...HIGHEST NEAR LOW LOW CENTER.
.24 HOUR FORECAST LOW E OF AREA NEAR 58N24W 960 MB. E OF A LINE
FROM 51N35W TO 60N47W TO 67N40W WINDS 40 TO 50 KT. SEAS 5 TO 9 M.
ELSEWHERE N OF 40N E OF 50W WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5
M.
.48 HOUR FORECAST LOW E OF AREA NEAR 59N152W 967 MB. E OF A LINE
FROM 51N35W TO 60N45W TO 66N45W WINDS 25 TO 35 KT. SEAS 3 TO 6
M.

...STORM WARNING...
.24 HOUR FORECAST LOW 48N70W 1010 MB. WITHIN 540 NM E...AND 600
NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 56N53W 981 MB. WITHIN 180 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 3 TO 4.5 M. ELSEWHERE WITHIN AN AREA
BOUNDED BY A LINE FROM 37N60W TO 49N65W TO 61N62W TO 60N45W TO
51N35W TO 37N40W TO 37N60W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.

...GALE WARNING...
.LOW 45N36W 1014 MOVING NE 40 KT AND RAPIDLY INTENSIFYING. FROM
37N TO 45N E OF 60W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.

...GALE WARNING...
.42 HOUR FORECAST NEW LOW 67N61W 1002 MB. N OF 61N BETWEEN 51W
AND 61W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW N OF AREA. N OF 62N BETWEEN GREENLAND AND
60W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

...HEAVY FREEZING SPRAY WARNING... 
.LIGHT TO MODERATE FREEZING SPRAY N OF 60N W OF 53W...AND WITHIN
60 NM E OF GREENLAND.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 64N W OF
58W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM
54N63W TO 62N50W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 65N W OF
60W...N OF 60N W OF 50W...W OF A LINE FROM 51N51W TO 60N58W...AND
FROM 46N TO 50N W OF 61W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 54N TO 63N
BETWEEN 42W AND 35W...AND FROM 50N TO 54N BETWEEN 42W AND 55W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM E OF GREENLAND.
.48 HOUR FORECAST DENSE FOG N OF 61N E OF 40W...AND FROM 54N TO
61N W OF 44W.

.FORECASTER BYRD. 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 SUN NOV 30.
24 HOUR FORECAST VALID 0600 UTC MON DEC  1.
48 HOUR FORECAST VALID 0600 UTC TUE DEC  2.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT FROM 31N60W TO 23N80W. WITHIN 31N58W TO 
31N69W TO 27N77W TO 25N75W TO 26N70W TO 31N58W NE TO E WINDS 20 
TO 25 KT. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST FRONT DISSIPATED. CONDITIONS IMPROVE. WINDS 20
KT OR LESS. SEAS LESS THAN 2.5 M.

.ATLC TROUGH FROM 26N47W TO 15N50W. WITHIN 26N35W TO 27N48W TO 
24N53W TO 16N41W TO 18N35W TO 26N35W E WINDS 20 TO 25 KT. SEAS 
2.5 TO 3.0 M IN E SWELL.
.24 HOUR FORECAST TROUGH FROM 24N55W TO 15N55W. WITHIN 24N40W TO
29N51W TO 28N56W TO 23N59W TO 16N40W TO 19N36W TO 24N40W E WINDS
20 TO 25 KT. SEAS 2.5 TO 4.5 M IN E SWELL. ELSEWHERE WITHIN 
28N35W TO 30N58W TO 20N60W TO 13N40W TO 15N35W TO 28N35W WINDS 
20 KT OR LESS. SEAS 2.5 TO 4.5 M IN E SWELL.
.48 HOUR FORECAST TROUGH FROM 27N60W TO 15N63W. WITHIN 28N53W TO
26N59W TO 22N56W TO 17N45W TO 17N39W TO 20N39W TO 28N53W E TO SE
WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN E SWELL. ELSEWHERE 
WITHIN 30N35W TO 30N62W TO 22N65W TO 10N44W TO 12N35W TO 30N35W 
WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN E SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.


.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

$$