HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI OCT 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 4 METERS OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH, AND
ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER CONDITIONS
WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE
CONTINUITY WHERE APPROPRIATE.
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1800 UTC OCT 16.
24 HOUR FORECAST VALID 1800 UTC OCT 17.
48 HOUR FORECAST VALID 1800 UTC OCT 18.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN LOW 53N46W 973 MB MOVING NE 25 KT AND
SECOND LOW 57N48W 973 MB MOVING NE 20 KT. WITHIN 180 NM N AND NE
OF A FRONT FROM 54N41W TO 49N35W AND WITHIN 180 NM SW AND W OF A
LINE FROM 51N44W TO 54N48W TO 58N50W WINDS 40 TO 55 KT. SEAS 5.5
TO 9 M...HIGHEST NEAR 51N47W. ELSEWHERE WITHIN 420 NM NE AND 300
NM NW QUADRANTS OF SECOND LOW AND WITHIN 420 NM NE...1020 NM
SE...660 NM SW AND 960 NM NW QUADRANTS OF MAIN LOW WINDS 25 TO 40
KT. SEAS 3.5 TO 7 M. ALSO FROM 60N TO 64N E AND W OF GREENLAND
WINDS TO 25 KT. SEAS 2.5 TO 5 M...HIGHEST N OF 60N E OF
GREENLAND.
.24 HOUR FORECAST COMBINED LOW 63N40W 968 MB. BETWEEN 90 NM AND
240 NM S SEMICIRCLE WINDS 40 TO 55 KT. SEAS 6.5 TO 10 M...HIGHEST
NEAR 57N37W. ELSEWHERE N OF 65N E OF GREENLAND AND WITHIN 480 NM
SE...420 NM S AND 360 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 3.5
TO 7 M.
.48 HOUR FORECAST LOW NE OF THE AREA 66N29W 970 MB. FROM 58N TO
61N E OF 43W WINDS 40 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR 35W.
ELSEWHERE FROM 53N TO 60N E OF 50W...FROM 60N TO 65N W OF
GREENLAND AND FROM 61N TO 63N E OF GREENLAND WINDS 25 TO 40 KT.
SEAS 3.5 TO 6.5 M.
...STORM WARNING...
.INLAND LOW 45N73W 996 MB MOVING NE 35 KT AND INTENSIFYING. FROM
36N TO 45N BETWEEN 65W AND 71W...INCLUDING THE BAY OF FUNDY WINDS
20 TO 30 KT. SEAS TO 2.5 M.
.06 HOUR FORECAST INLAND LOW 46N67W 996 MB. WITHIN 420 NM SE
QUADRANT WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 55N55W 982 MB. WITHIN 420 NM E...540 NM SE
AND 480 NM S QUADRANTS WINDS 30 TO 45 KT. SEAS 3.5 TO 5.5
M...HIGHEST E QUADRANT. ELSEWHERE WITHIN 1140 NM SW
QUADRANT...INCLUDING THE GULF OF SAINT LAWRENCE AND W AND NW OF A
LINE FROM 31N79W TO 42N62W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.30 HOUR FORECAST LOW 55N48W 982 MB AND SECOND NEW LOW TO FORM
NEAR 34N73W 1010 MB. WITHIN 420 NM SE AND BETWEEN 90 NM AND 540
NM S QUADRANTS OF MAIN LOW AND WITHIN 300 NM NW AND N QUADRANTS
OF SECOND LOW. WINDS 35 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR
54N45W.
.48 HOUR FORECAST LOW FIRST LOW DISSIPATED WITH SECOND LOW 33N72W
1012 MB. WITHIN 180 NM NW AND N OF A LINE FROM 34N75W TO 37N62W
WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M...HIGHEST NEAR 34N76W.
ELSEWHERE WITHIN 1020 NM NE...480 NM SW AND 420 NM NW QUADRANTS
WINDS 25 TO 35 KT. SEAS 3.5 TO 6 M. ALSO N OF 46N W OF
58W...MAINLY IN THE GULF OF SAINT LAWRENCE WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
...GALE WARNING...
.18 HOUR FORECAST N OF 64N W OF GREENLAND AREA OF N WINDS 25 TO
35 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 65N55W.
.24 HOUR FORECAST N OF 60N W OF GREENLAND AREA OF NW TO N WINDS
25 TO 40 KT. SEAS 3 TO 5.5 M...HIGHEST NEAR 65N55W.
.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE IN FIRST STORM
WARNING WITH LOW NE OF THE AREA 66N29W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM W OF A
LINE FROM 53N46W TO 60N49W...WITHIN 60 NM W OF GREENLAND FROM 60N
TO 63N...N OF 63N W OF GREENLAND AND WITHIN 60 NM E OF GREENLAND
FROM 60N TO 65N .
.24 HOUR FORECAST DENSE FOG WITHIN 90 NM W AND NW OF A LINE FROM
44N56W TO 52N48W...FROM 52N TO 56N W OF 43W TO THE COAST OF
LABRADOR...W OF A LINE FROM 56N55W TO 60N60W TO LABRADOR...FROM
60N TO 62N W OF 59W AND N OF 65N E OF GREENLAND.
.48 HOUR FORECAST DENSE FOG WITHIN 90 NM NW AND N OF A LINE FROM
55N58W TO 56N43W AND N OF 64N E OF GREENLAND.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 65N W OF 59W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY NW AND N OF A LINE FROM
60N64W TO 65N55W AND N OF 65N W 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 1800 UTC FRI OCT 16.
24 HOUR FORECAST VALID 1800 UTC SAT OCT 17.
48 HOUR FORECAST VALID 1800 UTC SUN OCT 18.
.WARNINGS.
...GULF OF AMERICA GALE WARNING...
.COLD FRONT FROM 30N93W TO 26N97W. W OF FRONT N WINDS 20 TO 30
KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST COLD FRONT FROM 30N89W TO 26N96W TO 21N97W. W
OF FRONT N WINDS 20 TO 30 KT...WITH FREQUENT GUSTS TO GALE FORCE.
SEAS BUILDING TO 2.5 TO 3.0 M.
.12 HOUR FORECAST COLD FRONT FROM 30N84W TO 24N94W TO 19N96W.
FROM 21W TO 26W W OF 96W N WINDS 30 TO 35 KT. SEAS 3.5 TO 4.0 M.
ELSEWHERE W OF FRONT N TO NE WINDS 20 TO 30 KT...WITH FREQUENT
GUSTS TO GALE FORCE. SEAS 2.5 TO 3.5 M.
.18 HOUR FORECAST COLD FRONT FROM 28N83W TO 20N95W TO 18.5N94W. S
OF 25N W OF 95W NW TO N WINDS 30 TO 45 KT. SEAS 4.0 TO 6.0 M.
ELSEWHERE NW OF FRONT N TO NE WINDS 20 TO 30 KT...WITH FREQUENT
GUSTS TO
GALE FORCE. SEAS 2.5 TO 4.0 M.
.24 HOUR FORECAST COLD FRONT FROM 27N87W TO 20N95W TO 18.5N94W.
LITTLE CHANGE IN WINDS AND SEAS.
.36 HOUR FORECAST COLD FRONT FROM 25.5N81W TO 22N90W TO 18.5N93W.
S OF 22N W OF 94W NW TO N WINDS 30 TO 40 KT. SEAS 4.0 TO 6.0 M.
ELSEWHERE NW OF FRONT TO A LINE FROM 29N90W TO 24N97W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M...EXCEPT 4.0 TO 5.0 M S OF
23N W
OF 92W.
.48 HOUR FORECAST COLD FRONT FROM 25N80W TO 22N89W TO 18.5N93W. S
OF 20N W OF FRONT NW TO N WINDS 30 TO 35 KT. SEAS 4.0 TO 5.0 M.
ELSEWHERE NW OF FRONT TO A LINE FROM 29N90W TO 23N97W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M...EXCEPT 3.0 TO 4.0 M S OF
22N W
OF 92W.
.SYNOPSIS AND FORECAST.
.ATLC FROM 22N TO 25N E OF 36W SE WINDS 20 TO 25 KT. SEAS 2.5 TO
3.0 M. ELSEWHERE N OF 21N E OF 40W WINDS 20 KT OR LESS. SEAS 2.5
TO
3.0 M PRIMARILY IN N SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC 18 HOUR FORECAST N OF 30N BETWEEN 46W AND 52W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST N OF 29N BETWEEN 45W AND 52W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.36 HOUR FORECAST N OF 29N BETWEEN 40W AND 45W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.48 HOUR FORECAST N OF 26N BETWEEN 38W AND 45W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 77W...INCLUDING THE
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M
OFFSHORE COLOMBIA.
.18 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.
$$