040
FZPN01 KWBC 182140
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC TUE NOV 18 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PLEASE SEE PROPOSAL TO ALIGN NWS PACIFIC HIGH SEAS FORECASTS WITH
METAREA XII:  HTTPS://OCEAN.WEATHER.GOV/HIGHSEASPACIFICPROPOSAL/
(LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC NOV 18.
24 HOUR FORECAST VALID 1800 UTC NOV 19.
48 HOUR FORECAST VALID 1800 UTC NOV 20.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 50N161E 970 MB MOVING NE 20 KT AND
SECOND CENTER 54N173E 968 MB MOVING N 10 KT THEN TURNING S AFTER
12 HOURS. WITHIN 480 NM S QUADRANT OF FIRST CENTER...240 NM S
SEMICIRCLE OF SECOND CENTER...AND 240 NM SE OF FRONT FROM 48N178W
TO 44N179E TO 39N167E WINDS 40 TO 50 KT. SEAS 4.5 TO 9 M.
ELSEWHERE...EXCEPT WHERE DESCRIBED BELOW...S OF 59N W OF 172W
WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M.
.24 HOUR FORECAST COMBINED LOW 54N173E 961 MB. WITHIN 720 NM S
AND 240 NM W QUADRANTS WINDS 35 TO 50 KT. SEAS 5 TO 9.5 M.
ELSEWHERE...EXCEPT WHERE DESCRIBED BELOW...S OF 54N W OF 167W AND
WITHIN 240 NM N QUADRANT WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M.
.48 HOUR FORECAST LOW 50N168W 983 MB. WITHIN 300 NM S SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 7 TO 9.5 M. ELSEWHERE...EXCEPT WHERE
DESCRIBED BELOW... FROM 36N TO 56N W OF 160W WINDS 25 TO 40 KT.
SEAS 4 TO 9 M...HIGHEST NEAR 47N174W. ALSO...EXCEPT WHERE
DESCRIBED BELOW...S OF 36N W OF 160W WINDS TO 25 KT. SEAS 2.5 TO
5 M.

...STORM WARNING...
.LOW 38N164E 999 MB MOVING NE 60 KT. WITHIN 480 NM SE SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 3.5 TO 7 M. ELSEWHERE CONDITIONS
DESCRIBED ABOVE WITH COMPLEX LOW IN FIRST WARNING.
.24 HOUR FORECAST LOW 51N165W 976 MB. WITHIN 300 NM SE OF FRONT
FROM LOW CENTER TO 42N174W TO 36N177E WINDS 35 TO 50 KT. SEAS 5
TO 9 M. ELSEWHERE WITHIN 480 NM NE QUADRANT...840 NM SE QUADRANT
W OF 150W...AND 600 NM SE OF FRONT FROM LOW CENTER TO 42N174W TO
32N169E WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ALSO WITHIN 180 NM NW
OF ENTIRE FRONT WINDS 20 TO 30 KT. SEAS 4 TO 8 M.
.48 HOUR FORECAST LOW 58N158W 957 MB. WITHIN 240 NM W QUADRANT
WINDS 40 TO 50 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE N OF 36N BETWEEN
128W AND 160W WINDS 25 TO 40 KT. SEAS 3 TO 8.5 M...HIGHEST NEAR
48N158W. ALSO WITHIN 240 NM SE OF FRONT FROM 40N160W TO 34N173W
WINDS 20 TO 30 KT. SEAS 3 TO 6 M. ALSO...EXCEPT WHERE DESCRIBED
BELOW...S OF 36N BETWEEN 130W AND 155W WINDS LESS THAN 25 KT.
SEAS 2.5 TO 5 M.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 49N155W 992 MB MOVING E 20 KT.
WITHIN 720 NM SW QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 5 M.
ELSEWHERE S OF 53N BETWEEN 142W AND 172W WINDS 20 TO 30 KT. SEAS
2.5 TO 5M.
.24 HOUR FORECAST COMBINED LOW 53N142W 974 MB. FROM 42N TO 56N
BETWEEN 138W AND 148W AND WITHIN 120 NM NE AND E OF FRONT FROM
55N140W TO 49N131W WINDS 40 TO 55 KT. SEAS 4.5 TO 9 M. ELSEWHERE
FROM 33N TO 59N BETWEEN 126W AND 151W WINDS 25 TO 40 KT. SEAS 3
TO 6 M.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED ABOVE WITH
LOW 58N158W.

...GALE WARNING...
.LOW 64N167W 977 MB MOVING N 10 KT. WITHIN 240 NM W SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 480 NM S
QUADRANT WINDS TO 25 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED N OF
AREA.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 62N171W 968 MB. WITHIN 180 NM OF CENTER
WINDS 35 TO 45 KT. SEAS 2.5 TO 5 M. ELSEWHERE WITHIN 360 NM OF
CENTER EXCEPT 480 NM E QUADRANT WINDS 25 TO 40 KT. SEAS TO 3.5
M.
.48 HOUR FORECAST LOW 62N171W 968 MB. EXCEPT WHERE DESCRIBED
ABOVE WITH LOW 50N168W...WITHIN THE BERING SEA BETWEEN 164W AND
174E WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 63N W OF ALASKA.
ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 60N W OF ALASKA.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE
FROM 58N176W TO 64N170W.

.SYNOPSIS AND FORECAST.

.LOW 34N120W 1010 MB MOVING SE 15 KT. FROM 30N TO 43N BETWEEN
123W AND 130W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW DISSIPATED. S OF 33N BETWEEN 118W AND 128W
WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST S OF 40N BETWEEN 120W AND 130W WINDS 20 TO 30
KT. SEAS TO 4 M IN MIXED SWELL.

.LOW 59N140W 1003 MB MOVING NW 05 KT. WITHIN 360 NM S AND NE
SEMICIRCLES WINDS TO 25 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 61N BETWEEN
ALASKA COAST AND 171W...WITHIN 120 NM NE OF A LINE FROM 54N170E
TO 52N178W...FROM 48N TO 52N BETWEEN 151W AND 158W...AND FROM 41N
TO 43N BETWEEN 144W AND 148W.
.24 HOUR FORECAST DENSE FOG FROM 57N TO 64N BETWEEN 162W AND
179E...FROM 50N TO 53N BETWEEN 174E AND 170E...FROM 49N TO 53N
BETWEEN 171W AND 176W....AND FROM 52N TO 56N BETWEEN 158W AND
163W.
.48 HOUR FORECAST DENSE FOG N OF 60N BETWEEN 167W AND 176W.

.FORECASTER JOSEPH. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC TUE NOV 18.
24 HOUR FORECAST VALID 1800 UTC WED NOV 19.
48 HOUR FORECAST VALID 1800 UTC THU NOV 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 31N113W TO 32N115W TO 31N115W TO 30N114W TO
31N113W...INCLUDING THE GULF OF CALIFORNIA...S TO SW WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.COLD FRONT FROM 29N115W TO 22N130W. WITHIN 30N117W TO 30N133W
TO 26N132W TO 24N128W TO 25N122W TO 30N117W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.5 M IN NW TO N SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 28N115W TO 25N118W.
WITHIN 30N118W TO 29N130W TO 26N131W TO 24N125W TO 23N120W TO
26N117W TO 30N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW
SWELL.
.48 HOUR FORECAST NEW COLD FRONT FROM 30N123W TO 27N135W. WITHIN
30N126W TO 30N140W TO 29N140W TO 29N132W TO 29N127W TO 30N126W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.

.WITHIN 01S114W TO 01N117W TO 00N120W TO 03.4S120W TO 03.4S114W
TO 01S114W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.12 HOUR FORECAST WITHIN 15N136W TO 17N140W TO 08N140W TO
11N139W TO 13N135W TO 15N136W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NE SWELL.
.24 HOUR FORECAST WITHIN 16N133W TO 20N126W TO 21N137W TO
17N140W TO 08N140W TO 11N133W TO 16N133W NE TO E WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 17N118W TO 18N128W TO 22N130W TO
24N140W TO 07N140W TO 13N119W TO 17N118W NE TO E WINDS 20 TO 25
KT. SEAS 2.5 TO 3.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 2030 UTC TUE NOV 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 09N108W. ITCZ CONTINUES FROM
09N108W TO 08N140W. SCATTERED MODERATE FROM 07N TO 14N BETWEEN
116W AND 130W.


.FORECASTER ERA. NATIONAL HURRICANE CENTER.

$$