HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 29.
24 HOUR FORECAST VALID 1800 UTC MAY 30.
48 HOUR FORECAST VALID 1800 UTC MAY 31.
.WARNINGS.
...GALE WARNING...
.LOW E OF AREA NEAR 52N33W 995 MB MOVING NE 25 KT FOR 24 HOURS
THEN TURNING W. WITHIN 360 NM SW QUADRANT...AND E OF A LINE FROM
49N65W TO 65N35W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW E OF AREA NEAR 60N26W 1000 MB. E OF A LINE
FROM 57N46W TO 66N40W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW E OF AREA NEAR 62N33W 1005 MB. N OF 59N E
OF 45W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 43N58W 990 MB MOVING NE 20 KT AND
SECOND CENTER 43N52W 988 MB MOVING NE 40 KT. WITHIN AN AREA
BOUNDED BY A LINE FROM 31N63W TO 40N68W TO 48N67W TO 47N47W TO
36N36W TO 31N49W TO 31N63W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 46N48W 994 MB AND
SECOND CENTER 50N33W 999 MB. WITHIN AN AREA BOUNDED BY A LINE
FROM 32N47W TO 40N60W TO 50N61W TO 56N46W TO 48N35W TO 35N35W TO
32N47W WINDS 25 TO 35 KT. SEAS 2.5 TO 5.5 M.
.48 HOUR FORECAST COMBINED LOW E OF AREA NEAR 50N33W 1001 MB.
WITHIN 600 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 5.5 M.
...GALE WARNING...
.24 HOUR FORECAST NEW COMPLEX LOW WITH MAIN CENTER 41N67W 1000 MB
AND SECOND CENTER 31N77W 1010 MB. WITHIN 60 NM OF SECOND
CENTER...AND FROM 34N TO 44N BETWEEN 75W AND 62W WINDS 25 TO 35
KT. SEAS 2.5 TO 4 M.
.36 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 41N63W 997 MB.
WITHIN 300 NM SW QUADRANT...AND 240 NM NW SEMICIRCLE WINDS 25 TO
40 KT. SEAS 2.5 TO 5.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 42N57W 995
MB...AND SECOND CENTER 34N60W 1002 MB. WITHIN AN AREA BOUNDED BY
A LINE FROM 31N70W TO 46N63W TO 46N49W TO 38N44W TO 31N51W TO
31N70W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST S OF 34N W OF 77W WINDS TO 25 KT. SEAS TO 2.5
M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 47N
BETWEEN 64W AND 58W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 57W AND 42W.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM E OF GREENLAND...AND
FROM 31N TO 37N BETWEEN 61W AND 55W.
.FORECASTER BYRD. 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 1800 UTC FRI MAY 29.
24 HOUR FORECAST VALID 1800 UTC SAT MAY 30.
48 HOUR FORECAST VALID 1800 UTC SUN MAY 31.
.WARNINGS.
...ATLC GALE WARNING...
.30 HOUR FORECAST SURFACE TROUGH FROM 31N74W TO 26N77W. N OF 27N
E
OF TROUGH TO 71W S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
N
OF 29N W OF TROUGH TO 77W N WINDS 20 TO 25 KT. SEAS TO 2.5 M NEAR
31N.
.36 HOUR FORECAST COLD FRONT FROM 31N71W TO 27N80W. N OF 29N E OF
FRONT TO 68W SW WINDS 25 TO 35 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE N
OF
27N E OF FRONT TO 55W S TO SW WINDS 20 TO 25 KT. SEAS TO 2.5 M N
OF
30N. N OF 29N W OF FRONT TO 74.5W NW TO N WINDS 25 TO 35 KT. SEAS
2.5 TO 3.0 M.
.48 HOUR FORECAST COLD FRONT FROM 31N64W TO 27N69W TO 25N75W. N
OF
29N E OF FRONT TO 57W SW WINDS 30 TO 35 KT. SEAS 3.5 TO 4.5 M. N
OF
25N E OF FRONT TO A LINE FROM 31N52W TO 25N68W TO 27N69W S TO SW
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. N OF 28N W OF FRONT TO 69W
NW
TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE N OF 29N W
OF
FRONT TO 74W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.SYNOPSIS AND FORECAST.
.ATLC COLD FRONT FROM 31N60W TO 29N70W TO 31N80W. E OF FRONT AND
N
OF A LINE FROM 31N50W TO 28N60W TO 31N62W SW TO W WINDS 20 TO 25
KT.
SEAS 2.5 TO 3.0 M. ELSEWHERE N OF 29.5N BETWEEN 60W AND 66W WINDS
20
KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.24 HOUR FORECAST COLD FRONT N OF AREA. N OF A LINE FROM 31N45W
TO
29N50W TO 31N56W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC 36 HOUR FORECAST FROM 13N TO 22N E OF 39W WINDS 20 KT OR
LESS.
SEAS 2.5 TO 3.0 M PRIMARILY IN NE SWELL.
.48 HOUR FORECAST FROM 13N TO 22N E OF 42W WINDS 20 KT OR LESS.
SEAS
2.5 TO 3.0 M PRIMARILY IN NE SWELL.
.CARIBBEAN FROM 11N TO 16.5N BETWEEN 70W AND 79W...INCLUDING GULF
OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST 1N TO 15N BETWEEN 68W AND 73W...INCLUDING GULF
OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
$$