591
FZPN01 KWBC 170420
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON NOV 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17.
24 HOUR FORECAST VALID 0000 UTC NOV 18.
48 HOUR FORECAST VALID 0000 UTC NOV 19.

.WARNINGS.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 51N161E 981 MB. WITHIN 240 NM S OF A
LINE FROM 40N165E TO 45N165E WINDS 40 TO 50 KT. SEAS 4 TO 7 M.
ELSEWHERE W OF A LINE FROM 54N171E TO 39N173E TO 30N165E WINDS 25
TO 40 KT. SEAS 4 TO 6 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 54N178E 968 MB.
WITHIN 240 NM SE OF A LINE FROM 40N170E TO 45N174W WINDS 40 TO 50
KT. SEAS 4 TO 7.5 M. ELSEWHERE W OF A LINE FROM 54N171E TO
39N173E TO 30N165E WINDS 25 TO 40 KT. SEAS 3 TO 6 M...EXCEPT
WHERE DESCRIBED BELOW WITH LOW 50N164E.

...STORM WARNING...
.24 HOUR FORECAST NEW LOW 43N161W 1003 MB. WITHIN AN AREA BOUNDED
BY A LINE FROM 45N155W TO 30N167W TO 30N179E TO 45N173E TO
45N155W WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW 49N150W 986 MB. WITHIN 120 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 5 TO 8 M. ELSEWHERE WITHIN AN AREA
BOUNDED BY A LINE FROM 30N164W TO 47N162W TO 54N150W TO 44N138W
TO 30N145W TO 30N164W WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5 M.

...GALE WARNING...
.COMPLEX LOW WITH MEAN CENTER 56N176E 970 MB MOVING SE 10 KT. N
OF 45N W OF 180W WINDS 25 TO 40 KT. SEAS 3 TO 7 M.
.24 HOUR FORECAST COMBINED LOW 53N179W 982 MB. FROM 42N TO 53N
BETWEEN 169W AND 172E WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 58N166W 960 NM MOVING NW 10 KT. N OF 43N BETWEEN 180W AND
155W WINDS 25 TO 40 KT. SEAS 3 TO 6.5 M.
.24 HOUR FORECAST LOW 61N168W 968 MB. N OF 48N BETWEEN 170W AND
155W WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW 62N171W 978 MB. WITHIN 360 NM OF CENTER
WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

...GALE WARNING...
.LOW 44N170W 1002 MB MOVING NE 45 KT. W OF A LINE FROM 44N167W TO
37N173W TO 32N178E WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW 53N154W 992 MB. WITHIN 360 NM S SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST LOW 58N145W 1002 MB. WITHIN 240 NM OF CENTER
WINDS TO 25 KT. SEAS TO 3 M.

...GALE WARNING...
 .LOW 41N125W 1000 MB MOVING E 15 KT. FROM 30N TO 52N BETWEEN
124W AND 139W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW INLAND NEAR 37N122W 1008 MB. FROM 30N TO
43N BETWEEN 123W AND 130W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW DISSIPATED. FROM 30N TO 42N BETWEEN 121W
AND 128W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

...GALE WARNING...
.LOW 40N160W 1006 MB MOVING NE 30 KT. WITHIN 360 NM E OF A LINE
FROM 58N152W TO LOW CENTER TO 32N171W WINDS 25 TO 35 KT. SEAS 3
TO 5.5 M.
.24 HOUR FORECAST LOW 45N145W 1008 MB. WITHIN 360 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 55N136W 1006 MB. WITHIN 300 NM E SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 60N148W 995 MB. N OF 56N BETWEEN 152W
AND 137W WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 50N164E 970 MB. WITHIN 600 NM S
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 4 TO 8.5 M.

...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 LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 56N TO 62N W OF
164W.
.24 HOUR FORECAST DENSE FOG N OF 59N BETWEEN 163W AND 177W.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 56N W OF 170W.

.FORECASTER BYRD. 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 MON NOV 17.
24 HOUR FORECAST VALID 0000 UTC TUE NOV 18.
48 HOUR FORECAST VALID 0000 UTC WED NOV 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 19N108W TO 23N114W TO 19N140W TO 03N140W TO 06N123W TO
19N108W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 11N105W TO 10N121W TO 11N135W TO
08N133W TO 03N120W TO 05N110W TO 11N105W WINDS 20 KT OR LESS.
SEAS TO 2.5 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 15N133W TO 17N137W TO 18N140W TO
12N140W TO 11N137W TO 13N133W TO 15N133W WINDS 20 KT OR LESS.
SEAS TO 2.5 M IN NW SWELL.

.12 HOUR FORECAST WITHIN 30N126.5W TO 30N135.5W TO 29.5N135W TO
29.5N132W TO 29.5N128.5W TO 30N126.5W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N122W TO 30N137W TO 28N135W TO
27N129W TO 29N123W TO 30N122W WINDS 20 KT OR LESS. SEAS 2.5 TO 3
M IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N116W TO 30N133W TO 22N133W TO
23N123W TO 26N117W TO 30N116W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.5 M IN NW SWELL.

.30 HOUR FORECAST WITHIN 31N113W TO 32N115W TO 31N115W TO
30N115W TO 30N114W TO 30N113W TO 31N113W...INCLUDING THE GULF OF
CALIFORNIA...SW WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.30 HOUR FORECAST WITHIN 02S117W TO 01S118W TO 00N120W TO
03.4S120W TO 03.4S116W TO 02S117W WINDS 20 KT OR LESS. SEAS TO
2.5 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 00N113W TO 01N118W TO 01N122W TO
01S120W TO 03.4S120W TO 03.4S110W TO 00N113W WINDS 20 KT OR LESS.
SEAS TO 2.5 M IN W TO NW SWELL.

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

CONVECTION VALID AT 0300 UTC MON NOV 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO A 1011 MB LOW PRES NEAR 09N102W TO
09N122W. ITCZ FROM 09N122W TO BEYOND 09N140W. SCATTERED MODERATE
FROM 06N TO 12N AND E OF 107W...FROM 07N TO 11N BETWEEN 127W AND
135W.


.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.

$$