117
FZNT01 KWBC 171532
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 17.
24 HOUR FORECAST VALID 1200 UTC OCT 18.
48 HOUR FORECAST VALID 1200 UTC OCT 19.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 62N41W 971 MB MOVING NE 10 KT.
BETWEEN 120 NM AND 420 NM S SEMICIRCLE AND N OF 65N E OF
GREENLAND WINDS 35 TO 50 KT. SEAS 5 TO 9 M. ELSEWHERE FROM 52N TO
60N E OF 50W AND N OF 60N E OF GREENLAND WINDS 25 TO 35 KT. SEAS
4 TO 7 M.
.24 HOUR FORECAST COMBINED LOW 64N37W 970 MB. BETWEEN 180 NM AND
120 NM S QUADRANT WINDS 30 TO 45 KT. SEAS 4 TO 8 M...HIGHEST NEAR
57N35W. ELSEWHERE FROM 43N TO 60N E OF 50W...FROM 60N TO 63N E OF
GREENLAND AND FROM 60N TO 65N W OF GREENLAND WINDS 20 TO 30 KT.
SEAS 3 TO 6 M IN MIXED SWELL.
.48 HOUR FORECAST LOW 64N36W 974 MB. BETWEEN 240 NM AND 600 NM SW
QUADRANT WINDS 35 TO 50 KT. SEAS 4.5 TO 7.5 M...HIGHEST NEAR
60N35W. ELSEWHERE FROM 50N TO 60N E OF 50W AND N OF 60N E OF
GREENLAND WINDS 25 TO 35 KT. SEAS 3 TO 6 M. ALSO FROM 50N TO 60N
W OF 50W AND FROM 60N TO 65N W OF GREENLAND WINDS 20 TO 30 KT.
SEAS 2.5 TO 5 M...HIGHEST NEAR 58N50W.

...STORM WARNING...
.LOW NEAR 50N59W 987 MB MOVING NE 35 KT AND INTENSIFYING. BETWEEN
180 NM AND 420 NM SE AND WITHIN 1140 NM SW QUADRANTS WINDS 25 TO
35 KT. SEAS 2.5 TO 4 M.
.18 HOUR FORECAST LOW 60N41W 978 MB. BETWEEN 90 NM AND 600 NM E
AND 180 NM AND 960 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 8
M...HIGHEST NEAR 54N44W.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED ABOVE
WITH LOW 64N37W.

...STORM WARNING...
.LOW 38N70W 1010 MB MOVING SE 10 KT. WITHIN 360 NM N...300 NM SW
AND 180 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.
.06 HOUR FORECAST LOW 37N71W 1010 MB. WITHIN 180 NM NW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.12 HOUR FORECAST LOW 35N72W 1010 MB. WITHIN 180 NM W AND NW OF A
LINE FROM 32N76W TO THE LOW TO 38N66W WINDS 30 TO 40 KT. SEAS 3
TO 5.5 M...HIGHEST NEAR 36N73W.
.24 HOUR FORECAST LOW 34N70W 1011 MB. WITHIN 180 NM NW AND N OF A
LINE FROM 33N74W TO 37N64W WINDS 35 TO 50 KT. SEAS 3.5 TO 7 M.
ELSEWHERE WITHIN 900 NM NE...600 NM SW AND 420 NM NW QUADRANTS
WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST LOW 34N72W 1010 MB. WITHIN 480 NM SW AND 360 NM
NW QUADRANTS AND WITHIN 240 NM NW AND N OF A LINE FROM 37N70W TO
38N50W TO 45N35W WINDS 25 TO 40 KT. SEAS 4 TO 7.5 M.

...GALE WARNING...
.N OF 60N W OF GREENLAND AND WITHIN AN AREA BOUNDED BY A LINE
FROM 53N50W TO 60N50W TO 60N61W AREA OF NW WINDS 25 TO 40 KT.
SEAS 3 TO 6 M.
.24 HOUR FORECAST CONDITIONS ABSORBED AND DESCRIBED ABOVE WITH
LOW 64N37W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM W AND
NW OF A LINE FROM 45N68W TO 48N64W...FROM 50N TO 54N W OF 51W TO
THE COAST OF LABRADOR...FROM 60N TO 63N W OF GREENLAND AND N OF
63N E OF GREENLAND.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM N OF A LINE FROM 56N60W
TO 54N48W AND WITHIN 120 NM W OF GREENLAND N OF 65N.
.48 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND.

.24 HOUR FORECAST LIGHT FREEZING SPRAY W AND NW OF A LINE FROM
61N65W TO 64N56W TO 67N56W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY NW OF A LINE FROM 58N61W
TO 64N52W AND N OF 64N 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 1200 UTC SAT OCT 17.
24 HOUR FORECAST VALID 1200 UTC SUN OCT 18.
48 HOUR FORECAST VALID 1200 UTC MON OCT 19.

.WARNINGS.

...GULF OF AMERICA STORM WARNING...
.COLD FRONT FROM 28N83W TO 23N94.5W TO 18N94W. WITHIN 21N95W TO
21N97W TO 19N96W TO 19N95W TO 21N95W...INCLUDING WITHIN 60 NM OF
COAST OF VERACRUZ...NW WINDS 30 TO 45 KT...INCREASING TO 40 TO
50 KT. SEAS 4.5 TO 6.5 M. ELSEWHERE WITHIN 29N83W TO 30N94W TO
28N97W TO 22N98W TO 18N95W TO 24N92W TO 29N83W N TO NE WINDS 20
TO 30 KT WITH FREQUENT GUSTS TO GALE FORCE. SEAS 2.5 TO 4.5 M.
.12 HOUR FORECAST COLD FRONT FROM 26.5N82W TO 20N94W THEN
STATIONARY TO 18N94W. WITHIN 21N95W TO 23N95W TO 24N97W TO 23N98W
TO 19N96W TO 18N94W TO 21N95W...INCLUDING WITHIN 60 NM OF COAST
OF VERACRUZ...NW TO N WINDS 30 TO 45 KT. SEAS 5.0 TO 7.5 M.
ELSEWHERE WITHIN 27N82W TO 30N84W TO 31N88W TO 27N96W TO 18N94W
TO 21N92W TO 27N82W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 5.0
M.
.24 HOUR FORECAST COLD FRONT FROM 24N81W TO 20N93W TO 18N93W.
WITHIN 22N96W TO 21N97W TO 19N96W TO 18N94W TO 20N94W TO 22N96W
...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...NW TO N WINDS
30 TO 45 KT. SEAS 4.5 TO 6.5 M. ELSEWHERE WITHIN 29N83W TO
31N88W TO 25N97W TO 18N94W TO 21N90W TO 25N81W TO 29N83W
...INCLUDING THE STRAITS OF FLORIDA AND WITHIN 60 NM OF COAST OF
CAMPECHE... NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST STATIONARY FRONT FROM 84N81W TO 22N91W TO
18N93W. WITHIN 21N94W TO 22N96W TO 22N97W TO 19N96W TO 18N95W TO
19N93W TO 21N94W...INCLUDING WITHIN 60 NM OF COAST OF
VERACRUZ...NW TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE WITHIN 30N84W TO 26N94W TO 21N95W TO 19N92W TO 22N89W
TO 24N81W TO 30N84W...INCLUDING STRAITS OF FLORIDA AND WITHIN 60
NM OF COAST OF CAMPECHE...NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0
M.

...ATLC GALE WARNING...
.COLD FRONT FROM 31N79W TO 29W81W. WITHIN 31N80W TO 31N81W TO
31N82W TO 29N81W TO 30N80W TO 31N80W NW WINDS 20 TO 25 KT. SEAS
LESS THAN 2.5 M.
.12 HOUR FORECAST COLD FRONT FROM 31N75W TO 27N80W. WITHIN
31N76W TO 31N81W TO 28N80W TO 29N78W TO 31N76W N WINDS 20 TO 30
KT WITH FREQUENT GUSTS TO GALE FORCE N OF 29N. SEAS 2.5 TO 4.0 M.
.24 HOUR FORECAST COLD FRONT FROM 31N72W TO 25N80W. WITHIN
31N72W TO 31N81W TO 26N80W TO 31N72W N TO NE WINDS 20 TO 30 KT.
FREQUENT GUSTS TO GALE FORCE N OF 29N AND W OF 74W. SEAS 2.5 TO
5.0 M...HIGHEST NEAR 31N.
.36 HOUR FORECAST COLD FRONT FROM 31N71W TO 27N74.5W TO 24N80W.
WITHIN 31N72W TO 31N81W TO 25N79W TO 28N74W TO 31N72W...
INCLUDING ATLANTIC EXPOSURES...N TO NE WINDS 20 TO 30 KT. SEAS
2.5 TO 4.5 M...EXCEPT 4.5 TO 6.0 M N OF 30N BETWEEN 72W AND 77W.
ELSEWHERE WITHIN 29N68W TO 31N67W TO 31N72W TO 26N77W TO 26N75W
TO 29N68W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN NW TO N
SWELL.
.48 HOUR FORECAST STATIONARY FRONT FROM 31N71W TO 27N74W TO
24N80W. WITHIN 31N73W TO 29N79W TO 31N81W TO 27N80W TO 25N80W
TO 25N79W TO 31N73W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M
...EXCEPT 4.5 TO 5.5 M N OF 26N BETWEEN 72W AND 77W. ELSEWHERE
WITHIN 31N66W TO 31N73W TO 29N79W TO 24N75W TO 24N71W TO
31N66W...
INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 2.5 TO
4.0 M IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N47W TO 31N56W TO 29N53W TO 30N49W TO 31N47W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 31N38W TO 31N45W TO 27N44W TO 26N40W TO
31N38W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.ATLC WITHIN 27N35W TO 27N37W TO 26N37W TO 25N36W TO 25N35W TO
27N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. 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 LEWITSKY. NATIONAL HURRICANE CENTER.

$$