HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT SEP 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 12.
24 HOUR FORECAST VALID 0000 UTC SEP 13.
48 HOUR FORECAST VALID 0000 UTC SEP 14.
.WARNINGS.
...GALE WARNING...
.LOW 55N50W 987 MB MOVING NE 15 KT. WITHIN 90 NM EITHER SIDE OF A
LINE FROM 45N41W TO 51N38W...AND WITHIN 180 NM NW OF A FRONT FROM
53N55W TO 57N48W...WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M. ELSEWHERE
WITHIN AN AREA BOUNDED BY A LINE FROM 35N60W TO 42N35W TO 67N35W
TO 66N55W TO 50N65W TO 35N60W WINDS 20 TO 30 KT. SEAS 2.5 TO 4
M.
.24 HOUR FORECAST LOW 58N40W 990 MB. BETWEEN 120 NM AND 300 NM SW
QUADRANT...AND BETWEEN A LINE FROM 58N41W TO 63N39W AND THE E
COAST OF GREENLAND...WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M.
ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM 37N42W TO 42N35W
TO 60N35W TO 64N57W TO 43N57W TO 37N42W WINDS 20 TO 30 KT. SEAS
2.5 TO 5 M.
.48 HOUR FORECAST LOW WELL E OF AREA 63N22W 991 MB. WITHIN AN
AREA BOUNDED BY A LINE FROM 42N47W TO 42N35W TO 64N35W TO 54N56W
TO 42N47W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST NEW LOW 62N67W 988 MB. WITHIN 90 NM OF A FRONT
FROM LOW CENTER TO 62N61W TO 59N54W WINDS TO 25 KT. SEAS TO 2.5
M.
.48 HOUR FORECAST IN THE GULF OF SAINT LAWRENCE E OF 65W AREA OF
SW WINDS 20 TO 30 KT. SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM EITHER
SIDE OF A LINE FROM 53N53W TO 57N44W.
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM EITHER SIDE OF A LINE
FROM 56N42W TO 59N39W TO 60N35W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 45N BETWEEN 70W AND 65W.
.FORECASTER CONNELLY. 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 SEP 12.
24 HOUR FORECAST VALID 0000 UTC SUN SEP 13.
48 HOUR FORECAST VALID 0000 UTC MON SEP 14.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 20N71W TO 21N71W TO 21N72W TO 20N73W TO 20N72W TO
20N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.CARIBBEAN WITHIN 16N72W TO 17N76W TO 15N79W TO 13N80W TO 11N76W
TO 11N70W TO 16N72W...INCLUDING THE GULF OF VENEZUELA...E WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 14N71W TO 16N73W TO 15N77W TO 13N80W TO
11N77W TO 11N71W TO 14N71W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M.
ELSEWHERE WITHIN 15N70W TO 16N72W TO 17N79W TO 13N82W TO 10N80W
TO 11N71W TO 15N70W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.48 HOUR FORECAST WITHIN 14N71W TO 17N72W TO 13N77W TO 12N76W TO
11N72W TO 11N70W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN
17N72W TO 17N78W TO 15N81W TO 10N81W TO 12N74W TO 11N70W TO
17N72W WINDS 20 KT OR LESS. SEAS 2.5 M IN E SWELL.
.CARIBBEAN 24 HOUR FORECAST WITHIN 17N86W TO 18N88W TO 16N88W TO
16N85W TO 17N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20
TO 25 KT. SEAS 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.
$$