North Atlantic High Seas Forecast

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FZNT01 KWBC 222132
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT MAR 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1800 UTC MAR 22. 
24 HOUR FORECAST VALID 1800 UTC MAR 23.
48 HOUR FORECAST VALID 1800 UTC MAR 24.

.WARNINGS.

...STORM WARNING...
.LOW INLAND 49N57W 983 MB MOVING NE 25 KT. BETWEEN 240 NM AND 720
NM S QUADRANT AND FROM 37N TO 50N E OF 45W WINDS 30 TO 45 KT.
SEAS 12 TO 20 FT. ELSEWHERE FROM 32N TO 52N W OF 35W WINDS 20 TO
30 KT. SEAS 8 TO 17 FT.
.18 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 57N54W 976 MB AND
SECOND CENTER NEAR 54N52W 978 MB. FROM 58N TO 60N BETWEEN 42W AND
50W WINDS 35 TO 50 KT. SEAS 12 TO 21 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 58N54W 974 MB AND
SECOND CENTER 55N51W 978 MB. FROM 58N TO 60N BETWEEN 42W AND 49W
WINDS 45 TO 60 KT. SEAS 16 TO 25 FT. ALSO FROM 57N TO 61N BETWEEN
39W AND 53W...AND WITHIN 540 NM SE OF SECOND CENTER WINDS 30 TO
45 KT. SEAS 12 TO 23 FT. ELSEWHERE N OF 45N W OF 35W WINDS 20 TO
30 KT. SEAS 8 TO 17 FT...EXCEPT SEAS TO 12 FT N OF 61N E OF
GREENLAND.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 62N58W 982 MB AND
SECOND CENTER NEAR 59N45W 992 MB. W OF A LINE FROM 60N40W TO
63N38W WINDS 35 TO 45 KT. SEAS 16 TO 24 FT. ELSEWHERE N OF 55N W
OF 35W WINDS 25 TO 35 KT. SEAS 10 TO 24 FT.

...GALE WARNING...
.03 HOUR FORECAST FROM 33N TO 40N BETWEEN 65W AND 73W AREA OF W
TO SW WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW INLAND 46N61W 996 MB. WITHIN 660 NM S
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 17 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 50N45W 1002
MB. WITHIN 660 NM SE AND 600 NM SW QUADRANTS WINDS 25 TO 35 KT.
SEAS 8 TO 17 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW NEAR 42N73W 1006 MB. WITHIN 300 NM
E...420 NM SE...AND 540 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS TO
10 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 420 NM EITHER
SIDE OF A LINE FROM 44N59W TO 61N30W...INCLUDING WITHIN THE GULF
OF SAINT LAWRENCE.
.24 HOUR FORECAST DENSE FOG FROM 50N TO 64N W OF 35W AND WITHIN
THE GULF OF SAINT LAWRENCE W OF 61W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 54N BETWEEN 44W AND
55W...AND N OF 59N W OF 35W.

.LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE FROM 59N58W TO
64N52W AND N OF 64N E OF GREENLAND.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY WITHIN THE
GULF OF SAINT LAWRENCE AND W OF A LINE FROM 53N50W TO 60N57W TO
65N53W.

.FORECASTER ANDERSON. 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 1800 UTC SAT MAR 22.
24 HOUR FORECAST VALID 1800 UTC SUN MAR 23.
48 HOUR FORECAST VALID 1800 UTC MON MAR 24.

.WARNINGS.

...CARIBBEAN GALE WARNING...
.CARIBBEAN WITHIN 16N72W TO 15N77W TO 10N80W TO 09N78W TO 11N74W
TO 11N66W TO 16N72W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.06 HOUR FORECAST WITHIN 13N73W TO 13N76W TO 11N75W TO 12N73W TO
13N73W NE TO E WINDS 30 TO 40 KT. SEAS 10 TO 14 FT. ELSEWHERE 
WITHIN 17N71W TO 16N76W TO 10N81W TO 12N73W TO 10N65W TO 11N64W 
TO 17N71W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.18 HOUR FORECAST LITTLE CHANGE EXCEPT WINDS BELOW GALE FORCE.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WITHIN 13N73W TO 13N76W TO 11N75W TO 12N73W TO
13N73W NE TO E WINDS 30 TO 40 KT. SEAS 10 TO 12 FT. ELSEWHERE
WITHIN
15N67W TO 17N76W TO 14N82W TO 09N81W TO 11N73W TO 11N64W TO 
15N67W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LITTLE CHANGE EXCEPT WINDS LESS THAN GALE
FORCE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N55W TO 25N70W THEN STATIONARY TO 22N78W.
WITHIN
31N59W TO 31N70W TO 26N68W TO 29N62W TO 31N59W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN W TO NW SWELL.
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N45W TO
25N69W. WITHIN 31N52W TO 31N59W TO 28N57W TO 29N55W TO 31N52W 
WINDS 20 KT OR LESS. SEAS 8 FT IN W TO NW SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.ATLC WITHIN 19N43W TO 19N47W TO 14N57W TO 08N55W TO 13N42W TO
19N43W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.24 HOUR FORECAST WITHIN 11N40W TO 11N46W TO 09N51W TO 06N53W TO
08N40W TO 11N40W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.ATLC AND CARIBBEAN 36 HOUR FORECAST WITHIN 20N71W TO 21N72W TO
21N73W TO 19N76W TO 19N77W TO 19N75W TO 20N71W...INCLUDING
WINDWARD PASSAGE NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 20.5N70.5W TO 21N71W TO 21N72W TO 
20.5N72.5W TO 20N72.5W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 30
KT. SEAS LESS THAN 8 FT.

.CARIBBEAN 36 HOUR FORECAST WITHIN 18N86W TO 17N88W TO 16N88W TO
16N87W TO 16N86W TO 16N85W TO 18N86W...INCLUDING THE GULF OF
HONDURAS... E TO SE WINDS 20 TO 30 KT. SEAS TO 8 FT. 
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
TO 8 FT.

.GULF OF AMERICA 12 HOUR FORECAST WITHIN 23N90W TO 23N91W TO
20N92W TO 20N91W TO 21N90W TO 23N90W NE WINDS 20 TO 25 KT. SEAS 
LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.
.36 HOUR FORECAST WITHIN 23N88W TO 23N90W TO 22N91W TO 21N91W TO
22N89W TO 22N88W TO 23N88W NE WINDS 20 TO 25 KT. SEAS LESS THAN 
8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

$$