HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT AUG 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 15.
24 HOUR FORECAST VALID 0000 UTC AUG 16.
48 HOUR FORECAST VALID 0000 UTC AUG 17.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH MAIN CENTER 58N50W 1007 MB MOVING NE 10 KT.
FROM 57N TO 61N E OF 50W AND FROM 58N TO 65N BETWEEN 50W AND 54W
WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 60N38W 1010 MB. WITHIN 240 NM W QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 61N38W 1006 MB. WITHIN 180 NM W QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.LOW INLAND 48N57W 1003 MB MOVING NE 25 KT. FROM 33N TO 40N
BETWEEN 45W AND 60W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 51N50W 1007 MB. S OF 45N E OF 50W WINDS TO
25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
.48 HOUR FORECAST NEW LOW 35N53W 1012 MB. FROM 31N TO 38N BETWEEN
48W AND 58W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 52N
BETWEEN 45W AND 55W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 52N BETWEEN 35W AND 51W
AND N OF 64N W OF 57W.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 56N BETWEEN 35W AND 40W.
.FORECASTER KREKELER. 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 15.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 16.
48 HOUR FORECAST VALID 0000 UTC MON AUG 17.
.WARNINGS.
...CARIBBEAN GALE WARNING...
.WITHIN 13N71W TO 12N75W TO 11N75W TO 12N73W TO 10N71W TO 11N70W
TO 13N71W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 30
TO 40 KT. SEAS 2.5 TO 3.5 M. WITHIN 18N72W TO 18N79W TO 11N80W
TO 10N77W TO 13N73W TO 11N68W TO 18N72W...INCLUDING IN MONA
PASSAGE...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 19N67W TO 16N82W TO 11N83W TO 09N78W TO
11N74W TO 14N62W TO 19N67W...INCLUDING IN MONA PASSAGE AND IN
ATLANTIC EXPOSURES AND PASSAGES AND WITHIN 60 NM OF COAST OF
NICARAGUA AND THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.0 M.
.27 HOUR FORECAST LITTLE CHANGE EXCEPT NE WINDS 25 TO 35 KT
WITHIN 12N74W TO 12N75W TO 11N76W TO 10N76W TO 11N75W TO 11N74W
TO 12N74W. SEAS 2.5 TO 3.0 M.
.36 HOUR FORECAST WITHIN 18N64W TO 15N82W TO 11N84W TO 09N77W
TO 13N74W TO 12N64W TO 18N64W...INCLUDING IN MONA PASSAGE AND
WITHIN 60 NM OF COAST OF NICARAGUA...NE TO E WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 18N72W TO 18N75W TO 13N80W TO 13N76W
TO 11N72W TO 12N68W TO 18N72W...INCLUDING IN MONA PASSAGE AND THE
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.SYNOPSIS AND FORECAST.
.ATLC 06 HOUR FORECAST WITHIN 13N36W TO 13N37W TO 09N39W TO
08N39W TO 09N37W TO 10N37W TO 13N36W S TO SW WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 14N40W TO 15N41W TO 14N42W TO 12N42W
TO 12N41W TO 13N40W TO 14N40W E WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M.
.48 HOUR FORECAST WITHIN 14N46W TO 15N47W TO 14N48W TO 13N48W
TO 12N48W TO 13N46W TO 14N46W SE WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M.
.ATLC AND CARIBBEAN WITHIN 21N71W TO 22N73W TO 22N76W TO 20N74W
TO 20N71W TO 21N71W E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 21N71W TO 22N73W TO 19N76W TO 18N75W TO
20N72W TO 21N71W...INCLUDING BETWEEN CUBA AND JAMAICA...NE TO E
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST WITHIN 20N71W TO 21N73W TO 20N74W TO 20N76W
TO 19N77W TO 19N74W TO 20N71W...INCLUDING BETWEEN CUBA AND
JAMAICA...NE TO E WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.CARIBBEAN WITHIN 16N50W TO 18N53W TO 19N58W TO 18N61W TO 13N61W
TO
11N54W TO 16N50W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES
AND ATLANTIC EXPOSURES...E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
WITHIN 18N64W TO 17N68W TO 15N64W TO 13N62W TO 15N61W TO
18N64W...INCLUDING IN MONA PASSAGE AND IN ATLANTIC EXPOSURES AND
PASSAGES...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 12N60W TO 12N61W TO 11N61W TO 11N60W TO
12N60W...INCLUDING ATLANTIC EXPOSURES...E WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M. WITHIN 20N62W TO 19N63W TO 15N61W TO 16N58W
TO 17N58W TO 20N62W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE
SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.CARIBBEAN WITHIN 22N79W TO 22N81W TO 21N81W TO 21N80W TO 21N79W
TO 22N79W NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. WITHIN
19N77W TO 20N77W TO 19N78W TO 19N77W...INCLUDING BETWEEN CUBA
AND JAMAICA...E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.27 HOUR FORECAST WITHIN 21N77W TO 22N79W TO 21N81W TO 20N79W
TO 20N78W TO 21N77W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN 21 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO
16N87W TO 16N86W TO 16N85W TO 17N85W...INCLUDING THE GULF OF
HONDURAS...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 17N86W TO 17N87W TO 16N87W TO 16N85W
TO 17N86W...INCLUDING THE GULF OF HONDURAS...NE TO E WINDS 20 TO
30 KT. SEAS TO 2.5 M.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA WITHIN 21N90W TO 21N91W TO 21N92W TO 20N92W TO
20N91W TO 21N90W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 22N90W TO 21N92W TO 20N92W TO 18N94W
TO 19N91W TO 22N90W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 20N91W TO 21N91W TO 20N92W TO 19N92W
TO 19N91W TO 20N91W...INCLUDING WITHIN 60 NM OF COAST OF
CAMPECHE...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
$$