FZNT01 KWBC 290932
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC TUE APR 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC APR 29. 
24 HOUR FORECAST VALID 0600 UTC APR 30.
48 HOUR FORECAST VALID 0600 UTC MAY 01.

.WARNINGS.

...STORM WARNING...
.LOW 59N41W 988 MB MOVING NE 15 KT. FROM 60N TO 62N E OF 39W AND
WITHIN 180 NM N AND NE OF A LINE FROM 54N38W TO 58N50W WINDS 35
TO 45 KT. SEAS 10 TO 20 FT...HIGHEST NEAR 59N42W. ELSEWHERE FROM
50N TO 60N E OF 50W...FROM 55N TO 62N BETWEEN 50W AND 53W AND
FROM 60N TO 63N E OF GREENLAND WINDS 25 TO 35 KT. SEAS 8 TO 15
FT. 
.12 HOUR FORECAST LOW 59N39W 982 MB. WITHIN 240 NM
SE...S...BETWEEN 60 NM AND 240 NM SW AND 60 NM AND 300 NM W
QUADRANTS WINDS 35 TO 50 KT. SEAS 14 TO 27 FT...HIGHEST NEAR
59N40W.  
.24 HOUR FORECAST LOW E OF THE AREA 62N28W 982 MB. FROM 58N TO
65N E OF 37W WINDS 30 TO 40 KT. SEAS 10 TO 20 FT...HIGHEST NEAR
59N35W. ELSEWHERE FROM 53N TO 60N E OF 45W AND N OF 60N E OF
GREENLAND WINDS 20 TO 30 KT. SEAS 9 TO 16 FT IN MIXED SWELL. 
.48 HOUR FORECAST LOW MOVED WELL NE OF AREA. N OF 50N E OF 45W
WINDS LESS THAN 25 KT. SEAS TO 10 FT IN MIXED SWELL.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 45N48W 1009 MB MOVING NE 10 KT.
WITHIN 120 NM E AND NE OF A FRONT FROM 42N49W TO 38N52W WINDS 25
TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 600 NM NE...420 NM SE
AND 840 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.   
.24 HOUR FORECAST LOW 48N47W 1010 MB. FROM 40N TO 47N BETWEEN 38W
AND 46W AND WITHIN 180 NM N OF A LINE FROM 49N47W TO 49N37W WINDS
20 TO 30 KT. SEAS 8 TO 14 FT...HIGHEST NEAR 43N43W.  
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 48N41W 1007 MB.
WITHIN 90 NM E OF A LINE FROM THE LOW TO 42N40W WINDS 25 TO 35
KT. SEAS 8 TO 15 FT. ELSEWHERE FROM 33N TO 52N BETWEEN 36W AND
41W AND FROM 40N TO 45N BETWEEN 40W AND 45W WINDS 20 TO 30 KT.
SEAS TO 11 FT. 

...GALE WARNING...
.LOW 42N56W 1009 MB MOVING SE 15 KT. WITHIN 480 NM NE...900 NM SW
AND 240 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 
.24 HOUR FORECAST LOW 40N47W 1010 MB. FROM 31N TO 40N BETWEEN 39W
AND 49W AND WITHIN 180 NM W AND NW OF A LINE FROM 37N54W TO
42N52W WINDS 20 TO 30 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED ABOVE
WITH LOW 48N41W.

...GALE WARNING...
.06 HOUR FORECAST INLAND LOW 60N67W 988 MB. SW AND W OF A LINE
FROM 53N50W TO 57N50W TO 62N56W TO 62N59W WINDS 20 TO 30 KT. SEAS
TO 9 FT. 
.12 HOUR FORECAST LOW 62N62W 990 MB. WITHIN 180 NM SW AND W OF A
LINE FROM 55N50W TO 57N52W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.  
.24 HOUR FORECAST LOW 63N58W 984 MB. FROM 54N TO 58N BETWEEN 45W
AND 54W AND WITHIN 60 NM NE AND E OF A LINE FROM 64N55W TO 61N50W
WINDS 30 TO 40 KT. SEAS 9 TO 16 FT. ELSEWHERE FROM 52N TO 60N W
OF 45W AND N OF 60N E OF 55W TO W GREENLAND WINDS 25 TO 35 KT.
SEAS 8 TO 13 FT.  
.48 HOUR FORECAST LOW WELL N OF THE AREA. WITHIN 240 NM NW AND N
OF A LINE FROM 55N54W TO 60N48W WINDS 20 TO 30 KT. SEAS TO 11 FT.

...GALE WARNING...
.18 HOUR FORECAST W AND NW OF A LINE FROM 36N74W TO 44N62W AND W
AND NW OF A LINE IN THE GULF OF SAINT LAWRENCE FROM 46N60W TO
50N58W WINDS 20 TO 30 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST NEW INLAND LOW 49N69W 990 MB. W AND NW OF A
LINE FROM 35N76W TO 40N62W TO 47N58W TO 51N58W...INCLUDING THE
GULF OF SAINT LAWRENCE WINDS 20 TO 30 KT. SEAS TO 11 FT. 
.30 HOUR FORECAST INLAND LOW 49N65W 987 MB. WITHIN 420 NM
SE...660 NM S AND 780 NM SW QUADRANTS...INCLUDING THE GULF OF
SAINT LAWRENCE WINDS 25 TO 35 KT. SEAS 8 TO 12 FT...EXCEPT TO 10
FT IN THE GULF OF SAINT LAWRENCE.  
.48 HOUR FORECAST LOW 48N59W 993 MB. WITHIN 240 NM SW
SEMICIRCLE...INCLUDING THE W GULF OF SAINT LAWRENCE WINDS 35 TO
45 KT. SEAS 9 TO 17 FT. ELSEWHERE WITHIN 720 NM SE AND 780 NM SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT...HIGHEST SE
QUADRANT. ALSO FROM 43N TO 50N BETWEEN 48W AND 53W WINDS TO 25
KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM NW OF
A LINE FROM 42N48W TO 47N43W...FROM 57N TO 60N E OF 43W AND FROM
60N TO 63N E OF GREENLAND. 
.24 HOUR FORECAST DENSE FOG FROM 44N TO 49N BETWEEN 42W AND
50W...FROM 56N TO 60N BETWEEN 41W AND 51W AND N OF 60N W OF
GREENLAND. 
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM SW OF A LINE FROM
43N49W TO 48N52W...FROM 46N TO 50N W OF 57W IN THE GULF OF SAINT
LAWRENCE...FROM 48N TO 57N E OF 45W AND WITHIN 300 NM NW AND N OF
A LINE FROM 53N49W TO 59N45W.

.LIGHT TO MODERATE FREEZING SPRAY FROM 46N TO 58N BETWEEN 50W AND
59W AND N OF 59N W OF GREENLAND. 
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 64N W OF GREENLAND.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W AND NW OF A
LINE FROM 57N59W TO 62N50W.

.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 0600 UTC TUE APR 29.
24 HOUR FORECAST VALID 0600 UTC WED APR 30.
48 HOUR FORECAST VALID 0600 UTC THU MAY 01.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N35W TO 31N39W TO 26N41W TO 24N39W TO 22N35W TO 
31N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 30N35W TO 27N39W TO 25N41W TO 22N38W TO 
19N35W TO 30N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.48 HOUR FORECAST WITHIN 23N38W TO 22N41W TO 19N40W TO 18N35W TO 
25N35W TO 23N38W WINDS 20 KT OR LESS. SEAS 8 FT IN DECAYING 
NE TO E SWELL.

.ATLC COLD FRONT FROM 31N57W TO 26N70W TO 26N78W. WITHIN 31N64W 
TO 31N71W TO 30N70W TO 30N67W TO 31N64W WINDS 20 KT OR LESS. 
SEAS 8 FT PRIMARILY IN N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N55W TO 27N60W TO 22N73W.
WITHIN 31N59W TO 31N69W TO 28N70W TO 29N64W TO 30N63W TO 31N59W 
WINDS 20 KT OR LESS. SEAS 8 FT IN N SWELL.
.48 HOUR FORECAST STATIONARY FRONT FROM 31N52W TO 25N62W TO 
22N73W. WITHIN 26N61W TO 25N65W TO 26N70W TO 24N72W TO 24N64W TO 
26N61W WINDS 20 KT OR LESS. SEAS TO 8 FT IN DECAYING N SWELL.

.CARIBBEAN WITHIN 20N73W TO 22N82W TO 19N80W TO 19N78W TO 
18.5N75W TO 20N73W...INCLUDING THE WINDWARD PASSAGE AND LEE OF 
CUBA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 20N73W TO 22N82W TO 20N80W TO 19N78W TO 
18N75W TO 20N73W...INCLUDING THE WINDWARD PASSAGE AND LEE OF 
CUBA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 21N73W TO 20N777W TO 22N80W TO 20N80W 
TO 18N75W TO 20N73W TO 21N73W...INCLUDING THE WINDWARD PASSAGE
AND LEE OF CUBA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.GULF OF AMERICA WITHIN 21N89W TO 22N89W TO 21N91W TO 20N93W TO 
2ON91W TO 21N90W TO 21N89W...INCLUDING WITHIN 60 NM OF COAST OF 
CAMPECHE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 21N88W TO 22N90W TO 21N91W TO 20N92W TO 
2ON91W TO 21N90W TO 21N88W...INCLUDING WITHIN 60 NM OF COAST OF 
CAMPECHE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST WITHIN 25N91W TO 25N92W TO 24N93W TO 22N93W TO 
21N91W TO 22N90W TO 25N91W SE WINDS 20 TO 25 KT. SEAS LESS THAN 
8 FT.
.48 HOUR FORECAST WITHIN 23N88W TO 23N91W TO 20N94W TO 18N93W TO 
21N90W TO 22N88W TO 23N88W...INCLUDING WITHIN 60 NM OF COAST OF 
CAMPECHE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.GULF OF AMERICA 18 HOUR FORECAST WITHIN 25N82W TO 24N85W TO 
22N86W TO 22N85W TO 23N84W TO 23N83W TO 25N82W...INCLUDING 
STRAITS OF FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$