227
FZPN01 KWBC 180350
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC NOV 18.
24 HOUR FORECAST VALID 0000 UTC NOV 19.
48 HOUR FORECAST VALID 0000 UTC NOV 20.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER W OF AREA 49N151E 964 MB MOVING NE
20 KT. WITHIN 240 NM SE OF A FRONT FROM 45N164E TO 40N159E WINDS
35 TO 50 KT. SEAS 4. TO 6.5 M. ELSEWHERE FROM 34N TO 52N W OF
170E WINDS 25 TO 35 KT. SEAS 3.5 TO 5 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 51N164E 968 MB
AND NEW SECOND CENTER 55N171E 964 MB. WITHIN 360 NM SE AND 600 NM
SW QUADRANTS OF FIRST CENTER...AND WITHIN 360 NM NE AND 180 NM NW
QUADRANTS OF SECOND CENTER WINDS 30 TO 45 KT. SEAS 4 TO 8.5
M...HIGHEST S OF FIRST CENTER. ELSEWHERE N OF 40N W OF 170E AND
FROM 50N W OF 165W WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER NEAR 54N178E 970
MB AND SECOND CENTER NEAR 58N177W 966 MB. BETWEEN 180 NM AND 540
NM S SEMICIRCLE OF FIRST CENTER WINDS 40 TO 55 KT. SEAS 5 TO 10
M...HIGHEST NEAR 46N179W. ALSO WITHIN 840 NM S AND 420 NM W
SEMICIRCLES OF FIRST CENTER...AND NW OF A LINE FROM 52N170E TO
64N165W WINDS 25 TO 40 KT. SEAS 3 TO 7 M. ELSEWHERE WITHIN THE
BERING SEA W OF 173W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.

...STORM WARNING...
.LOW 44N162W 1001 MB MOVING NE 25 KT. BETWEEN 360 NM AND 900 NM
SW QUADRANT WINDS 25 TO 40 KT. SEAS 4 TO 7 M. ELSEWHERE S OF 45N
BETWEEN 158W AND 170E WINDS TO 25 KT. SEAS 3.5 TO 5.5 M.
.24 HOUR FORECAST LOW 49N151W 989 MB. WITHIN 180 NM SW SEMICIRCLE
WINDS 35 TO 45 KT. SEAS 4.5 TO 7 M. ELSEWHERE WITHIN 480 NM NE
AND 240 NM NW QUADRANTS...AND WITHIN 780 NM S SEMICIRCLE WINDS 25
TO 35 KT. SEAS 3 TO 5.5 M.
.30 HOUR FORECAST LOW 50N147W 986 MB. WITHIN 180 NM S AND SW
SEMICIRCLES WINDS 35 TO 50 KT. SEAS 5 TO 8.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 54N141W 976
MB. WITHIN 480 NM S AND 240 NM SW QUADRANTS...AND WITHIN 180 NM N
AND E OF A FRONT FROM 57N144W TO 56N137W TO 49N130W WINDS 35 TO
50 KT. SEAS 4 TO 8 M...HIGHEST NEAR 45N136W. ELSEWHERE FROM 37N
TO 59N BETWEEN 128W AND 147W WINDS 25 TO 35 KT. SEAS 3.5 TO 6 M.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 43N173E 993 MB. WITHIN 300 NM SE OF A
FRONT FROM 47N175W TO 39N168E WINDS 40 TO 55 KT. SEAS 6 TO 8.5 M.
ALSO WITHIN 480 NM SE OF A LINE FROM 50N171W TO 35N160E WINDS 25
TO 40 KT. SEAS 4 TO 7 M. ELSEWHERE S OF 40N W OF 160W...AND S OF
THE ALEUTIAN ISLANDS BETWEEN 160W AND 172E WINDS TO 25 KT. SEAS
3.5 TO 6 M.
.48 HOUR FORECAST LOW 55N163W 964 MB. WITHIN 300 NM NE QUADRANT
AND WITHIN 240 NM SE OF A FRONT FROM 49N160W TO 37N177W WINDS 35
TO 50 KT. SEAS 4.5 TO 9 M...HIGHEST NEAR 46N159W. ALSO WITHIN 300
NM NE...1020 NM SE...540 NM SW...AND 180 NM NW QUADRANTS...AND
WITHIN 420 NM SE OF A FRONT FROM 51N160W TO 45N165W TO 35N180W
WINDS 25 TO 35 KT. SEAS 3 TO 7.5 M...HIGHEST SE OF FRONT.
ELSEWHERE FROM 36N TO 54N BETWEEN 147W AND 170W WINDS TO 25 KT.
SEAS 2.5 TO 5.5 M.

...GALE WARNING...
.LOW 60N145W 994 MB MOVING NE 10 KT. WITHIN 240 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST MOVED INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 54N151W 998 MB MOVING NE 15 KT. WITHIN 300 NM SE SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE CONDITIONS
DESCRIBED WITH LOW 61N167W BELOW.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 61N167W 968 MB MOVING N 10 KT. WITHIN 240 NM NW SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 3.5 TO 5.5 M. ALSO WITHIN THE BERING SEA
BETWEEN 160W AND 171E WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M.
ELSEWHERE WITHIN 900 NM SE AND S QUADRANTS WINDS TO 25 KT. SEAS
2.5 TO 5 M.
.24 HOUR FORECAST LOW 65N166W 980 MB. N OF 62N W OF ALASKA WINDS
25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW AND CONDITIONS N OF AREA.

...GALE WARNING...
.LOW 53N180W 985 MB MOVING SE 15 KT. WITHIN 780 NM S QUADRANT
WINDS 25 TO 40 KT. SEAS 5 TO 7.5 M...HIGHEST JUST S OF CENTER.
ELSEWHERE WITHIN 720 NM S SEMICIRCLE WINDS TO 25 KT. SEAS 3.5 TO
5.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS DESCRIBED WITH LOW 55N171E
ABOVE.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 62N 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 58N180W TO 64N165W.

.SYNOPSIS AND FORECAST.

.INLAND LOW 39N122W 1008 MB MOVING S 10 KT. WITHIN 480 NM SW AND
360 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW DISSIPATED. S OF 43N BETWEEN 123W AND 129W
AREA OF N WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 55N W OF
165W...FROM 37N TO 48N BETWEEN 143W AND 162W...AND AND FROM 40N
TO 53N W OF 176E.
.24 HOUR FORECAST DENSE FOG N OF 51N W OF 160W...FROM 40N TO 54N
BETWEEN 134W AND 154W...AND FROM 43N TO 49N W OF 170E.
.48 HOUR FORECAST DENSE FOG N OF 51N W OF 154W...AND N OF 57N
BETWEEN 135W AND 151W.

.FORECASTER ANDERSON. 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 0000 UTC TUE NOV 18.
24 HOUR FORECAST VALID 0000 UTC WED NOV 19.
48 HOUR FORECAST VALID 0000 UTC THU NOV 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30N121W TO 30N135W TO 27N133W TO 27N127W TO 30N121W
WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N116W TO 30N132W TO 23N129W TO
23N125W TO 26N119W TO 30N116W WINDS 20 KT OR LESS. SEAS 2.5 TO
4.5 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 27N117W TO 30N119W TO 30N126W TO
28N128W TO 24N126W TO 25N119W TO 27N117W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NW TO N SWELL.

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

.12 HOUR FORECAST WITHIN 01S119W TO 01S120W TO 03.4S120W TO
03.4S117W TO 01S119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W
TO NW SWELL.
.24 HOUR FORECAST WITHIN 02S117W TO 01S118W TO 01S120W TO
01S120W TO 03.4S120W TO 03.4S117W TO 02S117W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN SW SWELL.
.33 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.33 HOUR FORECAST WITHIN 14N137W TO 15N139W TO 15N140W TO
12N140W TO 12N138W TO 14N137W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 19N128W TO 20N128W TO 21N140W TO
10N140W TO 17N134W TO 19N128W NE TO E WINDS 20 TO 25 KT. SEAS
2.5 TO 3.0 M.

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

CONVECTION VALID AT 0340 UTC TUE NOV 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 08N78W TO 11N100W TO 08N123W.
THE ITCZ STRETCHES FROM 08N123W TO 08N140W. SCATTERED MODERATE
FROM 03N TO 10N BETWEEN 119W AND 140W.

.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.

$$