HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SUN AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 30.
24 HOUR FORECAST VALID 0000 UTC AUG 31.
48 HOUR FORECAST VALID 0000 UTC SEP 01.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MEAN CENTER INLAND NEAR 57N58W 999 MB MOVING
SE 05 KT. WITHIN 120 NM N AND NE OF A LINE FROM 60N64W TO 59N57W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.18 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N55W 995 MB.
BETWEEN 240 NM AND 420 NM NE...60 NM AND 240 NM NW AND 90 NM AND
180 NM N QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M...HIGHEST
NEAR 59N48W.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N55W 995 MB.
WITHIN 90 NM W OF A LINE FROM 56N58W TO 58N61W TO LABRADOR AND
WITHIN 90 NM NE OF A LINE FROM 59N50W TO 59N45W WINDS 25 TO 35
KT. SEAS 2.5 TO 4.5 M. ELSEWHERE BETWEEN 90 NM AND 180 NM W...90
NM AND 240 NM NW...120 NM AND 240 NM N AND 180 NM AND 420 NM NE
QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 54N47W 1001 MB.
WITHIN 180 NM SW AND W OF A LINE FROM 50N50W TO 58N58W WINDS 20
TO 30 KT. SEAS TO 3 M. ELSEWHERE WITHIN 480 NM NE...1020 NM
SE...780 NM SW AND 540 NM NW QUADRANTS...INCLUDING THE GULF OF
SAINT LAWRENCE WINDS TO 25 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.LOW 45N55W 1010 MB MOVING NE 25 KT. WITHIN 300 NM SE SEMICIRCLE
WINDS 20 TO 30 KT. SEAS TO 3 M. ELSEWHERE WITHIN 360 NM NE...420
NM SE AND 600 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 48N37W 1006 MB. BETWEEN 90 NM AND 300 NM SE
SEMICIRCLE AND WITHIN 420 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS
2.5 TO 3.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF THE AREA.
.FROM 45N TO 57N E OF 40W AREA OF NW WINDS TO 25 KT. SEAS TO 2.5
M.
.24 HOUR FORECAST CONDITIONS E OF AREA.
.LOW 60N44W 1008 MB MOVING E 15 KT. WITHIN 240 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW E OF AREA AND CONDITIONS DESCRIBED WITH
LOW 57N55W IN WARNING SECTION ABOVE.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM NE OF
A LINE FROM 47N56W TO 43N49W AND W AND SW OF A LINE FROM 51N49W
TO 58N50W TO 63N64W TO THE COASTS OF NEWFOUNDLAND AND LABRADOR.
.24 HOUR FORECAST DENSE FOG FROM 53N TO 56N E OF 42W AND FROM
55N TO 57N BETWEEN 54W AND 58W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 40W AND 50W
AND N OF 64N E 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 SUN AUG 30.
24 HOUR FORECAST VALID 0000 UTC MON AUG 31.
48 HOUR FORECAST VALID 0000 UTC TUE SEP 1.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 21N57W TO 22N58W TO 21N62W TO 18N62W TO 17N57W TO
18N56W TO 21N57W E WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M.
ELSEWHERE WITHIN 22N53W TO 22N62W TO 18N62W TO 15N56W TO 16N52W
TO 19N51W TO 22N53W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.24 HOUR FORECAST WITHIN 20N64W TO 22N66W TO 20N67W TO 18N64W TO
16N61W TO 19N61W TO 20N64W E TO SE WINDS 20 TO 25 KT. SEAS 3.0
TO 3.5 M. ELSEWHERE WITHIN 22N61W TO 24N64W TO 22N68W TO 20N67W
TO 16N61W TO 20N62W TO 22N61W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN E TO SE SWELL.
.48 HOUR FORECAST WITHIN 21N69W TO 23N72W TO 22N71W TO 23N73W TO
21N73W TO 20N70W TO 21N69W E TO SE WINDS 20 TO 25 KT. SEAS 2.5
M.
.ATLC WITHIN 20N70.5W TO 20.5N71W TO 20.5N72W TO 20N72.5W TO
20N70.5W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN WITHIN 13N70W TO 13N76W TO 11N76W TO 12N72W TO 11N71W
TO 11N69W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 13N69W TO
13N78W TO 11N80W TO 10N79W TO 11N74W TO 10N72W TO
13N69W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 12N71W TO 13N75W TO 10N76W TO 11N73W TO
10N71W TO 11N70W TO 12N71W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST WITHIN 14N68W TO 14N71W TO 13N74W TO 11N74W TO
11N71W TO 11N68W TO 14N68W...INCLUDING THE GULF OF VENEZUELA...
E WINDS 20 TO 25 KT. SEAS 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.
$$