HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1800 UTC MAY 30.
24 HOUR FORECAST VALID 1800 UTC MAY 31.
48 HOUR FORECAST VALID 1800 UTC JUN 01.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW 40N68W 1002 MB MOVING E 20 KT. FROM
35N TO 44N BETWEEN 65W AND 75W WINDS 25 TO 40 KT. SEAS 2.5 TO
4.5 M.
.12 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 39N66W 998 MB.
WITHIN 120 NM NW SEMICIRCLE WINDS 35 TO 50 KT. SEAS 3.5 TO 6 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 41N59W 993 MB. FROM
35N TO 44N BETWEEN 52W AND 63W WINDS 30 TO 45 KT. SEAS 2.5 TO
5.5 M. ELSEWHERE FROM 31N TO 45N BETWEEN 50W AND 64W WINDS 25 TO
35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 45N51W 993 MB. FROM
40N TO 49N BETWEEN 55W AND 45W WINDS 30 TO 45 KT. SEAS 3.5 TO 7
M. ELSEWHERE FROM 35N TO 50N BETWEEN 35W AND 57W WINDS 25 TO 35
KT. SEAS 2.5 TO 5.5 M.
...GALE WARNING...
.COMPLEX LOW E OF AREA WITH FIRST LOW NEAR 60N25W 1000 MB MOVING
NW 10 KT AND SECOND LOW NEAR 59N32W 1001 MB DRIFTING S. OVER
FORECAST WATERS 58N E OF 43W AREA OF N TO NE WINDS 20 TO 30 KT.
SEAS 2.5 TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST LOW DISSIPATED AND
SECOND LOW E OF AREA 58N32W 1003 MB. N OF 62N E OF GREENLAND
AREA OF N TO NE WINDS 25 TO 35 KT. SEAS SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 61N33W 1006 MB. CONDITIONS
DIMINISHED.
...GALE WARNING...
.LOW 45N50W 993 MB MOVING NE 25 KT. WITHIN 540 NM N AND 480 NM
NW...420 NM SW AND 480 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS
2.5 TO 5.5 M. ELSEWHERE WITHIN 180 NM SE OF FRONT FROM 43N35W
TO 34N47W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW E OF AREA 52N33W 999 MB. FROM 40N TO 53N E
OF 43W WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M.
.36 HOUR FORECAST LOW AND CONDITIONS MOVED WELL E OF AREA.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST LOW 32N77W 1010 MB. N OF 31N WITHIN 180 NM SE
QUADRANT WINDS TO 25 KT. SEAS TO 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 49N
BETWEEN 50W AND 46W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 46N BETWEEN 50W AND
58W...AND N OF 63N E OF GREENLAND.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 53W AND 44W.
.FORECASTER ROWLAND. OCEAN PREDICTION CENTER.
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 MAY 30.
24 HOUR FORECAST VALID 1800 UTC SUN MAY 31.
48 HOUR FORECAST VALID 1800 UTC MON JUN 01.
.WARNINGS.
...ATLC GALE WARNING...
.SURFACE TROUGH FROM 1011 LOW PRES LOCATED NEAR 30.5N76W TO
26N78W.
N OF 27N E OF TROUGH TO 74W S WINDS 20 TO 30 KT. SEAS LESS THAN
2.5
M.
.12 HOUR FORECAST SURFACE TROUGH FROM 31N70W TO 25N76W. N OF 27N
E
OF TROUGH TO 65W S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M. N
OF 29N BETWEEN 55W AND 65W S TO SE WINDS 20 TO 25 KT. SEAS TO
2.5M.
N OF 27N W OF TROUGH TO 74.5W N WINDS 20 TO 25 KT. SEAS LESS
THAN
2.5 M.
.18 HOUR FORECAST COLD FRONT FROM 31N66W TO 27N72W TO 25N75W. N
OF
25N E OF FRONT TO A LINE FROM 31N55W TO 25N70W TO 27N72W S TO SW
WINDS WINDS 20 TO 30 KT...WITH HIGHER GUSTS. SEAS 2.5 TO 3.0 M.
N OF
27N W OF FRONT TO 72W N WINDS 20 TO 30 KT...WITH HIGHER GUSTS.
SEAS
2.5 TO 3.0 M.
.24 HOUR FORECAST COLD FRONT FROM 31N64W TO 27N71W TO 24N74W. N
OF
29N E OF FRONT TO 58W SW WINDS WINDS 25 TO 35 KT. SEAS 3.0 TO
4.0 M.
ELSEWHERE N OF 26N E OF FRONT TO A LINE FROM 31N53W TO 26N69W S
TO
SW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. N OF 29N W OF FRONT TO
68W
N WINDS 20 TO 30 KT...WITH HIGHER GUSTS. SEAS 2.5 TO 3.0 M.
.36 HOUR FORECAST COLD FRONT FROM 31N61W TO 25N70W. N OF 27N E
OF
FRONT TO A LINE FROM 31N52W TO 27N65W S TO SW WINDS 20 TO 30 KT.
SEAS 3.0 TO 4.0 M. N OF 28N W OF FRONT TO 70W WINDS 20 KT OR
LESS.
SEAS 2.5 TO 3.0 M IN NW SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N58W TO 26N70W. N OF 28N E
OF
FRONT TO A LINE FROM 31N55W TO 28N62W S TO SW WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M. N OF 29N W OF FRONT TO 62W WINDS 20 KT OR
LESS.
SEAS 2.5 TO 3.0 M IN NW SWELL.
.SYNOPSIS AND FORECAST.
.ATLC N OF 30N BETWEEN 45W AND 48W WINDS 20 KT OR LESS. SEAS 2.5
TO
3.0 M IN NW SWELL.
.12 HOUR FORECAST CONDITIONS MERGED.
.ATLC 12 HOUR FORECAST FROM 11N TO 16N E OF 45W NE TO E WINDS 20
TO
25 KT. SEAS BUILDING TO 2.5 M. FROM 16N TO 23N E OF 40W NE TO E
WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST FROM 12N TO 22N E OF 43W NE TO E WINDS 20 TO
25
KT. SEAS 2.5 TO 3.0 M.
.36 HOUR FORECAST FROM 13N TO 23N E OF 48W NE TO E WINDS 20 TO
25
KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST FROM 15N TO 24N BETWEEN 38W AND 51W WINDS 20
KT OR
LESS. SEAS 2.5 M PRIMARILY IN NE SWELL.
.ATLC 48 HOUR FORECAST LOW PRES N OF AREA NEAR 32N77W 1009 MB.
TROUGH FROM LOW CENTER TO 26N80W. N OF 29N E OF TROUGH TO 74W S
TO
SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.CARIBBEAN FROM 11N TO 15N BETWEEN 69W AND 80W...INCLUDING GULF
OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST FROM 11N TO 15N BETWEEN 70W AND
77W...INCLUDING
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M
OFFSHORE COLOMBIA.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST FROM 11N TO 15N BETWEEN 68W AND
76W...INCLUDING
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.