HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 30.
24 HOUR FORECAST VALID 0600 UTC MAY 01.
48 HOUR FORECAST VALID 0600 UTC MAY 02.
.WARNINGS.
...GALE WARNING...
.LOW 35N50W 1002 MB MOVING E 20 KT. WITHIN 240 NM N AND NE
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE FROM 31N TO
41N BETWEEN 41W AND 59W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 35N42W 1004 MB. FROM 33N TO 39N BETWEEN 35W
AND 51W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 36N40W 1008 MB. FROM 35N TO 46N BETWEEN 35W
AND 45W WINDS 20 TO 30 KT. SEAS TO 3 M.
...GALE WARNING...
.LOW 62N41W 1005 MB MOVING NE 20 KT. WITHIN 240 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE N OF 55N BETWEEN 35W
AND 45W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW AND CONDITIONS WELL E OF AREA.
...GALE WARNING...
.FROM 41N TO 50N BETWEEN 35W AND 41W WINDS 25 TO 35 KT. SEAS TO 4
M.
.24 HOUR FORECAST FROM 42N TO 47N BETWEEN 35W AND 48W WINDS TO 25
KT. SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
.SYNOPSIS AND FORECAST.
.N AND NW OF A LINE FROM 55N45W TO 53N51W WINDS 20 TO 30 KT. SEAS
TO 3.5 M.
.24 HOUR FORECAST FROM 56N TO 60N BETWEEN 35W AND 44W WINDS 20 TO
30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST FROM 57N TO 60N BETWEEN 38W AND 46W WINDS TO 25
KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 38N65W 1005 MB. WITHIN 540 NM NE AND 240 NM
SW QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 42N60W 1008 MB. WITHIN 420 NM SW QUADRANT
AND 300 NM E AND NE OF A LINE FROM 49N66W TO 38N56W WINDS TO 25
KT. SEAS TO 3 M.
.LIGHT FREEZING SPRAY N OF 62N W OF GREENLAND.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 61N W OF 54W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 64N W OF GREENLAND.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 40N W OF 66W
AND WITHIN 120 NM OF THE W GREENLAND COAST FROM 64N TO 60N.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 50N W OF 60W...FROM 42N
TO 49N BETWEEN 45W AND 55W...AND WITHIN 120 NM OF THE W GREENLAND
COAST FROM 64N TO 60N.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 52N BETWEEN 48W AND 63W
AND N OF 62N W OF GREENLAND.
.FORECASTER COLLINS. 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 THU APR 30.
24 HOUR FORECAST VALID 0600 UTC FRI MAY 01.
48 HOUR FORECAST VALID 0600 UTC SAT MAY 02.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N45W TO 27N50W TO 23N61W. W OF FRONT
...WITHIN 31N51W TO 31N68W TO 28N64W TO 27N58W TO 29N53W TO
31N51W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N38W TO 26N45W TO 22N57W.
WITHIN 31N35W TO 31N56W TO 27N54W TO 26N42W TO 28N35W TO 31N35W
WINDS 20 KT OR LESS...EXCEPT SW WINDS 20 TO 25 KT N OF 29N E OF
36W. SEAS 2.5 TO 3 M IN DECAYING NW TO N SWELL.
.42 HOUR FORECAST WEAKENING COLD FRONT FROM 29N35W TO 23N52W.
WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC WITHIN 31N41W TO 31N47W TO 29N45W TO 28N44W TO 29N42W TO
31N41W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M. ELSEWHERE
WITHIN 31N35W TO 30N43W TO 31N42W TO 31N51W TO 28N44W TO 29N35W
TO 31N35W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN NW TO N SWELL.
.24 HOUR FORECAST CONDITIONS AS DESCRIBED ABOVE WITH COLD FRONT.
.CARIBBEAN WITHIN 13N70W TO 13.5N74W TO 12N77W TO 11N76W TO
12N72W TO 11N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...
NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 15N69W TO 16N74W TO 12N77W TO 11N75W TO
12N72W TO 11N70W TO 12N64W TO 15N69W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.CARIBBEAN 42 HOUR FORECAST WITHIN 18N85W TO 19N86W TO 18N87W TO
16N87W TO 16N85W TO 17N84W TO 18N85W...INCLUDING THE GULF OF
HONDURAS...E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.GULF OF AMERICA 42 HOUR FORECAST WITHIN 23N86W TO 24N87W TO
23N89W TO 21N88W TO 22N87W TO 23N86W E TO SE WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 24N86W TO 25N89W TO 22N90W TO 22N87W TO
23N87W TO 24N86W SE WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.GULF OF AMERICA 48 HOUR FORECAST COLD FRONT FROM 30N90W TO
27N94W TO 25N97W. NW OF FRONT...WITHIN 30N92W TO 30N94W TO
28N97W TO 25N97W TO 26N96W TO 27N93W TO 30N92W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
$$