HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED APR 29 2026
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 29.
24 HOUR FORECAST VALID 0000 UTC APR 30.
48 HOUR FORECAST VALID 0000 UTC MAY 01.
.WARNINGS.
...GALE WARNING...
.LOW N OF THE AREA 67N31W 992 MB MOVING NE 10 KT. WITHIN 90 NM N
AND NE OF A LINE FROM 59N35W TO 58N40W TO 59N47W WINDS 35 TO 45
KT. SEAS 4 TO 8 M. ELSEWHERE FROM 55N TO 60N E OF 50W...N OF 63N
E OF GREENLAND AND FROM 60N TO 62N E OF 50W TO W GREENLAND WINDS
25 TO 35 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR 57N35W.
.24 HOUR FORECAST LOW NE OF THE AREA WITH NEW LOW TO FORM NEAR
61N54W 1002 MB. FROM 53N TO 63N W OF 50W...FROM 52N TO 55N W OF
40W...FROM 55N TO 60N W OF 35W AND N OF 60N E OF GREENLAND WINDS
20 TO 30 KT. SEAS 2.5 TO 5 M...HIGHEST N OF 60N E OF GREENLAND.
.48 HOUR FORECAST LOW 62N52W 1010 MB. FROM 55N TO 60N E OF 50W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M. ELSEWHERE FROM 53N TO 63N
BETWEEN 50W AND 55W WINDS TO 25 KT. SEAS TO 3 M.
...GALE WARNING...
.COMPLEX LOW WITH FIRST LOW 36N61W 1004 MB MOVING SE 10 KT AND A
SECOND LOW 34N58W 1008 MB MOVING NE 15 KT. WITHIN 120 NM NE OF A
LINE FROM 42N67W TO 35N57W WINDS 30 TO 40 KT. SEAS 2.5 TO 5 M.
ELSEWHERE FROM 31N TO 44N BETWEEN 51W AND 71W WINDS 20 TO 30 KT.
SEAS 2.5 TO 4 M.
.24 HOUR FORECAST FIRST LOW 34N61W 1004 MB AND SECOND LOW 35N52W
1002 MB. WITHIN 90 NM N AND NE OF A LINE FROM 35N54W TO 35N47W
WINDS 30 TO 40 KT. SEAS 3 TO 4.5 M. ELSEWHERE FROM 31N TO 45N
BETWEEN 45W AND 65W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMBINED LOW WITH MAIN LOW 35N45W 1004 MB.
WITHIN 900 NM NE...480 NM E AND 1200 NM NW QUADRANTS...INCLUDING
THE GULF OF SAINT LAWRENCE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
...GALE WARNING...
.COMPLEX LOW WITH FIRST LOW E OF AREA 39N32W 1008 MB NEARLY
STATIONARY AND SECOND LOW E OF AREA 37N26W 1011 MB MOVING NW 20
KT. WITHIN AN AREA BOUNDED BY A LINE FROM 34N35W TO 40N39W TO
40N35W TO 34N35W WINDS 25 TO 35 KT. SEAS 3.5 TO 5 M. ELSEWHERE
WITHIN AN AREA BOUNDED BY A LINE FROM 40N35W TO 40N39W TO 44N46W
TO 51N35W TO 40N35W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST FIRST LOW E OF THE AREA 39N32W 1005 MB WITH
SECOND LOW E OF AREA 44N32W 1004 MB. FROM 40N TO 59N E OF 40W
WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM 38N TO 40N E
OF 38W AND WITHIN AN AREA BOUNDED BY A LINE FROM 40N40W TO 45N45W
TO 49N40W TO 40N40W WINDS TO 25 KT. SEAS 2.5 TO 4 M...HIGHEST
NEAR 40W.
.48 HOUR FORECAST FIRST AND SECOND LOWS E OF AREA AND CONDITIONS
DESCRIBED ABOVE WITH LOW 35N45W.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST LOW 34N69W 1006 MB. FROM 31N TO 39N BETWEEN 67W
AND 74W WINDS TO 25 KT. SEAS TO 2.5 M.
.LIGHT FREEZING SPRAY N OF 58N W OF 44W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 60N W OF GREENLAND.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 63N W OF GREENLAND.
.DENSE FOG. 06 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 58N TO 62N W OF 55W.
.24 HOUR FORECAST FROM 60N TO 63N W OF GREENLAND.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM W OF GREENLAND FROM 61N
TO 64N AND FROM 40N TO 45N BETWEEN 65W AND 70W...INCLUDING THE
BAY OF FUNDY.
.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 29.
24 HOUR FORECAST VALID 0000 UTC THU APR 30.
48 HOUR FORECAST VALID 0000 UTC FRI MAY 01.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N60W TO 25N68W AND STATIONARY TO 25N77W.
WARM FRONT FROM 31N54W TO 28N55W. NW OF COLD FRONT...WITHIN
31N64W TO 31N72W TO 30N70W TO 30N67W TO 31N64W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3 M IN N SWELL. NE OF WARM FRONT...WITHIN
31N51W TO 31N56W TO 30N56W TO 29N55W TO 29N53W TO 30N51W TO
31N51W SE TO S WINDS 20 TO 25 KT. SEAS TO 2.5 M. NUMEROUS
TSTMS N OF 26N BETWEEN 47W AND 53W.
.24 HOUR FORECAST COLD FRONT FROM 31N53W TO 25N59W AND WEAKENING
STATIONARY TO 22N76W. WARM FRONT FROM 31N47W TO 28N46W. NW OF
FRONT...WITHIN 31N57W TO 31N63W TO 29N61W TO 29N59W TO 31N57W W
TO NW WINDS 20 TO 25 KT. SEAS 2.5 TO 4 M IN NW SWELL. ELSEWHERE
NW OF FRONT...WITHIN 31N53W TO 29N60W TO 31N68W TO 28N66W TO
27N62W TO 27N56W TO 31N53W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M
IN NW TO N SWELL. NE OF WARM FRONT...WITHIN 31N43W TO 31N49W TO
28N47W TO 27N46W TO 28N44W TO 31N43W S TO SW WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.M.
.48 HOUR FORECAST COLD FRONT FROM 31N45W TO 25N53W. WARM FRONT
TO LIFT N OF 31N. W OF FRONT...WITHIN 31N45W TO 31N58W TO 26N58W
TO 25N56W TO 27N48W TO 31N47W WINDS 20 KT OR LESS. SEAS 2.5 TO 3
M IN W TO NW SWELL. WITHIN 31N35W TO 31N43W TO 27N46W TO 25N44W
TO 28N38W TO 31N35W WINDS 20 KT OR LESS...EXCEPT SW WINDS 20 TO
25 KT N OF 29N E OF 40W.
.ATLC WITHIN 31N35W TO 31N44W TO 30N44W TO 30N41W TO 30N39W TO
30N36W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N43W TO 29N41W TO 28N35W TO
31N35W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN NW TO N SWELL.
.48 HOUR FORECAST CONDITIONS TO LIFT NE OF AREA.
.CARIBBEAN WITHIN 13N70W TO 14N73W TO 13N75W TO 11N75W TO 12N72W
TO 11N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA WITHIN 23N87W TO 23N89W TO 23N90W TO 21N90W TO
22N87W TO 23N87W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 23N87W TO 23N89W TO 23N90W TO 21N90W TO
22N87W TO 23N87W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 23N87W TO 23N89W TO 23N90W TO 21N90W TO
22N87W TO 23N87W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
$$