HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 29.
24 HOUR FORECAST VALID 0000 UTC AUG 30.
48 HOUR FORECAST VALID 0000 UTC AUG 31.
.WARNINGS.
...GALE WARNING...
.LOW 42N64W 1014 MB MOVING NE 20 KT. FROM 37N TO 43N BETWEEN 59W
AND 66W WINDS 25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 46N52W 1009 MB. FROM 39N TO 46N BETWEEN 45W
AND 59W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 47N36W 1004 MB. FROM 39N TO 48N BETWEEN 35W
AND 49W WINDS TO 25 KT. SEAS TO 2.5 M.
...GALE WARNING...
.FROM 60N TO 63N W OF 62W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST NEW LOW 56N58W 999 MB. FROM 51N TO 62N W OF 54W
AND WITHIN THE GULF OF SAINT LAWRENCE N OF 49N WINDS TO 25 KT.
SEAS TO 2.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 56N56W 994
MB. WITHIN 300 NM W QUADRANT AND WITHIN 180 NM NE AND N OF A
FRONT TO EXTEND FROM 59N52W TO 57N42W WINDS 25 TO 40 KT. SEAS TO
4 M. ELSEWHERE FROM 55N TO 61N W OF 52W WINDS 20 TO 30 KT. SEAS
TO 3 M.
.SYNOPSIS AND FORECAST.
.LOW 52N32W 1006 MB MOVING E 20 KT. FROM 47N TO 54N E OF 42W
WINDS 20 TO 30 KT. SEAS TO 3.5 M. ELSEWHERE FROM 47N TO 58N E OF
50W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.
.24 HOUR FORECAST LOW 64N31W 1007 MB. FROM 56N TO 59N E OF 43W
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 45N
BETWEEN 66W AND 69W.
.24 HOUR FORECAST DENSE FOG W OF A LINE FROM 61N65W TO 58N49W TO
52N48W AND FROM 44N TO 48N BETWEEN 46W AND 55W.
.48 HOUR FORECAST DENSE FOG FROM 53N TO 56N E OF 43W AND FROM 55N
TO 58N BETWEEN 55W AND 59W.
.FORECASTER JOSEPH. 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 SAT AUG 29.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 30.
48 HOUR FORECAST VALID 0000 UTC MON AUG 31.
.WARNINGS.
...ATLC GALE WARNING...
.ATLC TROPICAL WAVE...REMNANTS OF DOLLY...AXIS ALONG 51W. WITHIN
17N49W TO 18N51W TO 17N52W TO 17N51W TO 17N50W TO 17N49W E WINDS
30 TO 35 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE WITHIN 18N47W TO
20N49W TO 20N53W TO 19N54W TO 16N53W TO 15N48W TO 18N47W E WINDS
20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 21N45W
TO 22N52W TO 20N57W TO 18N57W TO 12N48W TO 17N42W TO 21N45W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.18 HOUR FORECAST TROPICAL WAVE WITH AXIS ALONG 58W. WITHIN
20N54W TO 21N59W TO 21N62W TO 18N60W TO 17N58W TO 17N54W TO
20N54W E WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN
20N50W TO 23N54W TO 22N61W TO 19N62W TO 15N56W TO 16N49W TO
20N50W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST TROPICAL WAVE WITH AXIS ALONG 66W. WITHIN
21N64W TO 22N65W TO 22N67W TO 20N67W TO 19N66W TO 20N65W TO
21N64W E WINDS 20 TO 25 KT. SEAS 3.0 TO 3.5 M. ELSEWEHRE WITHIN
23N60W TO 24N64W TO 20N67W TO 18N61W TO 20N57W TO 23N60W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN PRIMARILY E TO SE SWELL.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 20.5N71.5W TO 20.5N72W TO 20N72.5W TO 20N71.5W TO
20N70.5W TO 20.5N71.5W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN WITHIN 13N70W TO 13N76W TO 11N76W TO 12N73W TO 11N72W
TO 12N69W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...NE TO E
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N70W TO
15N75W TO 13N81W TO 11N81W TO 10N78W TO 12N69W TO 14N70W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E SWELL.
.24 HOUR FORECAST WITHIN 14N70W TO 13N78W TO 10N76W TO 11N73W TO
10N72W TO 12N69W TO 14N70W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 13N72W TO 13N78W TO 11N79W TO 11N74W TO
10N71W TO 11N70W TO 13N72W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.
$$