FZNT01 KWBC 300421
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 30.
24 HOUR FORECAST VALID 0000 UTC MAY 01.
48 HOUR FORECAST VALID 0000 UTC MAY 02.
.WARNINGS.
...STORM WARNING...
.LOW JUST E OF THE AREA 61N31W 986 MB MOVING NE 20 KT. FROM 56N
TO 60N E OF 39W WINDS 40 TO 50 KT. SEAS 15 TO 30 FT...HIGHEST
NEAR 59N35W. ELSEWHERE FROM 53N TO 60N E OF 45W AND N OF 60N E OF
GREENLAND WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW WELL E OF THE AREA NEAR 63N17W 996 MB. FROM
50N TO 60N E OF 45W AND N OF 60N E OF GREENLAND WINDS LESS THAN
25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF THE AREA.
...GALE WARNING...
.COMPLEX LOW WITH FIRST LOW 41N48W 1010 MB MOVING NE 10 KT AND
SECOND LOW 47N46W 1010 MB MOVING NE 20 KT. WITHIN 180 NM NE AND E
OF A LINE FROM 44N45W TO 37N49W WINDS 25 TO 35 KT. SEAS 9 TO 14
FT. ELSEWHERE WITHIN 360 NM NE AND E OF LINE FROM THE SECOND LOW
TO 34N51W AND WITHIN 120 NM N OF A LINE FROM 46N49W TO THE SECOND
LOW TO 48N36W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 44N43W 1008 MB AND
SECOND LOW DISSIPATED. WITHIN 120 NM E OF A LINE FROM 46N42W TO
37N43W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE WITHIN 240
NM E OF LINE FROM 50N43W TO 36N44W AND WITHIN 180 NM N OF A LINE
FROM 38N43W TO 38N50W WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST COMBINED LOW 54N47W 996 MB. WITHIN 360 NM
NE...480 NM SE...300 NM W AND 360 NM NW QUADRANTS...AND WITHIN 90
NM E OF A LINE FROM 61N53W TO 64N54W WINDS 20 TO 30 KT. SEAS TO
10 FT...HIGHEST SE QUADRANT.
...GALE WARNING...
.LOW 62N59W 988 MB MOVING NE 15 KT. WITHIN 180 NM NW AND N OF A
LINE FROM 53N53W TO 56N46W WINDS 30 TO 40 KT. SEAS 9 TO 16 FT.
ELSEWHERE FROM 53N TO 60N W OF 45W AND FROM 60N TO 64N W OF
GREENLAND WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW N OF THE AREA 68N53W. FROM 55N TO 60N W OF
51W AND N OF 60N W OF GREENLAND WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW AND CONDITIONS N OF AREA.
...GALE WARNING...
.INLAND LOW 49N74W 994 MB MOVING E 25 KT. W AND NW OF A LINE FROM
36N73W TO 44N62W AND W OF A LINE FROM 46N59W TO 50N59W IN THE
GULF OF SAINT LAWRENCE WINDS 20 TO 30 KT. SEAS TO 8 FT.
.12 HOUR FORECAST LOW 50N65W 987 MB. WITHIN 300 NM E AND BETWEEN
300 NM AND 540 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO
14 FT.
.24 HOUR FORECAST LOW 49N60W 990 MB. WITHIN 240 NM SW SEMICIRCLE
AND WITHIN 120 NM S AND SE OF A LINE FROM 42N55W TO 41N60W WINDS
30 TO 40 KT. SEAS 9 TO 17 FT...HIGHEST NEAR 48N63W. ELSEWHERE
WITHIN 660 NM SE AND 840 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS
8 TO 14 FT.
.48 HOUR FORECAST LOW 47N50W 997 MB. BETWEEN 120 NM AND 360 NM SW
SEMICIRCLE WINDS 30 TO 40 KT. SEAS 11 TO 19 FT. ELSEWHERE BETWEEN
420 NM AND 600 NM S QUADRANTS AND FROM 50N TO 60N BETWEEN 36W AND
62W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT IN MIXED SWELL.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM NE OF
A LINE FROM 63N59W TO 57N50W...FROM 44N TO 48N BETWEEN 40W AND
49W AND FROM 60N TO 63N W OF 40W TO E GREENLAND.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM NE AND E OF A LINE FROM
43N55W TO 47N56W...FROM 45N TO 50N BETWEEN 40W AND 47W...FROM 50N
TO 54N E OF 50W AND WITHIN 240 NM NW OF A LINE FROM 55N53W TO
59N45W.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 48N BETWEEN 45W AND
53W...WITHIN 300 NM NW AND N OF A LINE FROM 50N52W TO 54N45W TO
57N35W AND WITHIN 120 NM NE OF A LINE FROM 54N45W TO 52N40W.
.LIGHT FREEZING SPRAY N OF 62N W OF GREENLAND.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW AND N OF A
LINE FROM 58N58W TO 64N51W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 62N W 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 WED APR 30.
24 HOUR FORECAST VALID 0000 UTC THU MAY 01.
48 HOUR FORECAST VALID 0000 UTC FRI MAY 02.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N64W TO 31N70W TO 30N70W TO 30N68W TO 30N65W TO
31N64W NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.ATLC WITHIN 30N35W TO 29N40W TO 25N41W TO 22N38W TO 20N35W TO
30N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E SWELL.
.24 HOUR FORECAST WITHIN 26N35W TO 24N43W TO 22N42W TO 19N40W TO
17N35W TO 26N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.48 HOUR FORECAST WITHIN 21N37W TO 19N40W TO 18N37W TO 17N35W TO
20N35W TO 21N37W WINDS 20 KT OR LESS. SEAS TO 8 FT IN DECAYING
NE SWELL.
.ATLC AND CARIBBEAN WITHIN 20N73W TO 21N79W TO 20N80W TO 20N78W
TO 18N75W TO 20N73W...INCLUDING THE WINDWARD PASSAGE AND LEE OF
CUBA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 20N73W TO 21N79W TO 20N80W TO 20N78W TO
18N75W TO 20N73W...INCLUDING THE WINDWARD PASSAGE AND LEE OF
CUBA...NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.
.GULF OF AMERICA WITHIN 23N87W TO 23N89W TO 22N92W TO 21N92W TO
19N92W TO 21N90W TO 23N87W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
$$
