259
FZNT01 KWBC 182201
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT OCT 18 2025

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC OCT 18.
24 HOUR FORECAST VALID 1800 UTC OCT 19.
48 HOUR FORECAST VALID 1800 UTC OCT 20.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW WITH MAIN LOW 38N58W 988 MB MOVING NE 20 KT AND
SECOND LOW 39N55W 986 MB MOVING NE 20 KT. WITHIN 300 NM SW
SEMICIRCLE AND BETWEEN 90 NM AND 300 NM NW QUADRANT OF MAIN LOW
AND WITHIN 420 NM SE SEMICIRCLE OF SECOND LOW WINDS 30 TO 45 KT.
SEAS 4.5 TO 6.5 M. ELSEWHERE BETWEEN 360 NM AND 720 NM
NE...WITHIN 840 NM SE AND 420 NM S QUADRANTS OF SECOND LOW AND
WITHIN 480 NM SW...540 NM NW QUADRANTS OF MAIN LOW AND WITHIN 300
NM N OF A LINE FROM 43N58W TO 44N50W WINDS 25 TO 35 KT. SEAS 2.5
TO 5 M.
.24 HOUR FORECAST COMBINED LOW 43N48W 991 MB. BETWEEN 180 NM AND
540 NM SE SEMICIRCLE AND WITHIN 180 NM NW OF A LINE FROM 43N54W
TO 49N44W WINDS 30 TO 40 KT. SEAS 3.5 TO 6 M. ELSEWHERE FROM 31N
TO 52N E OF 62W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M IN MIXED
SWELL.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 43N43W 997 MB. WITHIN
480 NM NE...BETWEEN 90 NM AND 540 NM SE...SW AND WITHIN 360 NM NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5 M. ELSEWHERE WITHIN
660 NM NE...840 NM SE...BETWEEN 90 NM AND 720 NM S...WITHIN 780
NM SW AND WITHIN 480 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5
TO 4 M IN MIXED SWELL.

...GALE WARNING...
.LOW 63N38W 1014 MB MOVING NE 20 KT. NW AND N OF A LINE FROM
62N39W TO 64N35W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST W OF A LINE FROM 32N77W TO 41N71W AREA OF S TO
SW WINDS TO 25 KT. SEAS TO 3 M.
.42 HOUR FORECAST NEW INLAND LOW NEAR 42N74W 1003 MB. W AND NW OF
A LINE FROM 33N74W TO 41N70W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST INLAND LOW 42M73W 1001 MB. W AND NW OF A LINE
FROM 36N68W TO 43N66W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE FROM 34N TO 45N W OF 65W WINDS 20 TO 30 KT. SEAS TO 3
M.

.SYNOPSIS AND FORECAST.

.FROM 50N TO 60N E OF 40W AREA OF N TO NE WINDS TO 25 KT. SEAS
TO 3 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST WITHIN 120 NM W OF A LINE FROM 59N59W TO 64N60W
AREA OF SE TO S WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM W OF A
LINE FROM 50N54W TO 54N57W TO 60N61W AND FROM 42N TO 45N BETWEEN
47W AND 52W.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM NW OF A LINE FROM
42N50W TO 47N43W AND W OF A LINE FROM 60N61W TO 64N61W.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 62N63W TO 66N62W.

.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 SAT OCT 18.
24 HOUR FORECAST VALID 1800 UTC SUN OCT 19.
48 HOUR FORECAST VALID 1800 UTC MON OCT 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N49W TO 21N73W. E OF COLD FRONT WITHIN
31N43W TO 31N48W TO 25N54W TO 25N52W TO 27N46W TO 31N43W SW WINDS
20 TO 30 KT. SEAS 3.5 TO 4.5 M IN SW SWELL. W OF COLD FRONT
WITHIN 31N49W TO 31N63W TO 29N60W TO 28N55W TO 29N51W TO 31N49W W
WINDS 20 TO 30 KT. SEAS 4.0 TO 5.5 M IN NW SWELL. ELSEWHERE E OF
COLD FRONT WITHIN 31N40W TO 31N49W TO 24N57W TO 24N54W TO 26N44W
TO 31N40W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN SW TO W
SWELL. W OF COLD FRONT WITHIN 29N52W TO 31N63W TO 31N76W TO
24N72W TO 24N58W TO 29N52W WINDS 20 KT OR LESS. SEAS 2.5 TO 5.0 M
IN NW TO NE SWELL.
.24 HOUR FORECAST STATIONARY FRONT FROM 31N46W TO 25N66W. WITHIN
31N38W TO 31N70W TO 23N74W TO 19N68W TO 19N56W TO
31N38W...INCLUDING IN ATLANTIC EXPOSURES AND PASSAGES...WINDS 20
KT OR LESS. SEAS 2.5 TO 4.5 M IN NW TO N SWELL.
.48 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N44W TO
24N57W. WITHIN 31N35W TO 31N58W TO 26N57W TO 20N65W TO 11N53W TO
21N42W TO 31N35W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N
SWELL.

.ATLC WITHIN 15N51W TO 15N53W TO 13N53W TO 12N51W TO 13N50W TO
15N51W E TO SE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE
WITHIN 15N46W TO 16N50W TO 14N53W TO 13N53W TO 12N49W TO 15N46W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E TO SE SWELL.
.24 HOUR FORECAST WITHIN 19N55W TO 19N56W TO 18N62W TO 15N60W TO
14N56W TO 16N55W TO 19N55W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED N AND
SE SWELL.
.48 HOUR FORECAST WITHIN 17N65W TO 18N67W TO 17N68W TO 16N68W TO
16N65W TO 17N65W...INCLUDING IN MONA PASSAGE...WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN MIXED N AND SE SWELL.

.ATLC WITHIN 13N35W TO 14N40W TO 13N42W TO 11N42W TO 11N40W TO
12N35W TO 13N35W WINDS 20 KT OR LESS. SEAS 2.5 M IN N SWELL.
.24 HOUR FORECAST WITHIN 11N42W TO 14N47W TO 13N51W TO 10N48W TO
08N45W TO 09N42W TO 11N42W WINDS 20 KT OR LESS. SEAS 2.5 M IN E
SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.CARIBBEAN 30 HOUR FORECAST WITHIN 13N70W TO 14N70W TO 13N72W TO
13N74W TO 12N74W TO 11N70W TO 13N70W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.42 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 ADAMS. NATIONAL HURRICANE CENTER.

$$