061
FZPN01 KWBC 162211
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC THU OCT 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
PACIFIC 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

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 OCT 16.
24 HOUR FORECAST VALID 1800 UTC OCT 17.
48 HOUR FORECAST VALID 1800 UTC OCT 18.

.WARNINGS.

...STORM WARNING...
.LOW 43N166W 1007 MB MOVING NE 25 KT AND RAPIDLY INTENSIFYING.
WITHIN 240 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 4
M. ELSEWHERE WITHIN AN AREA BOUNDED BY
45N169W...46N160W...42N155W...35N170W...38N175W...45N169W WINDS
20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 50N157W 991 MB. WITHIN 240 NM SW QUADRANT
WINDS 35 TO 50 KT. SEAS 4 TO 6 M. ELSEWHERE WITHIN 240 NM NE AND
120 NM NW QUADRANTS...ALSO WITHIN 360 NM S SEMICIRCLE WINDS 25
TO 40 KT. SEAS 3 TO 5 M. ALSO WITHIN AN AREA BOUNDED BY
53N160W...53N150W...50N142W...45N140W...38N160W...53N160W. WINDS
20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 51N142W 980 MB
AND SECONDARY CENTER 56N141W 984 MB. FRONT WILL EXTEND FROM
SECONDARY CENTER TO 56N135W TO 50N130W TO 42N130W. WITHIN 300 NM
SW SEMICIRCLE OF MAIN CENTER WINDS 40 TO 55 KT. SEAS 6 TO 9.5 M.
WITHIN 120 NM E OF FRONT BETWEEN 50N AND 55N WINDS 40 TO 55 KT.
SEAS 4 TO 6 M. ELSEWHERE WITHIN 420 NM SE...480 NM SW...AND 360
NM NW QUADRANTS OF MAIN CENTER...AND WITHIN 120 NM N AND NW
SEMICIRCLES OF SECONDARY CENTER...ALSO WITHIN 120 NM N AND E OF
FRONT N OF 45N WINDS 30 TO 45 KT. SEAS 3 TO 7 M...HIGHEST S OF
CENTER. ELSEWHERE WITHIN 600 NM OF CENTER WINDS 20 TO 30 KT.
SEAS TO 4 M.

...STORM WARNING...
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 39N164E 1000 MB.
WITHIN 120 NM W AND NW OF A LINE FROM 40N165E TO 37N160E WINDS
40 TO 55 KT. SEAS 3 TO 7 M. ELSEWHERE FROM 35N TO 41N W OF
169E...AND W OF A LINE FROM 35N163E TO 31N160E WINDS 30 TO 45
KT. SEAS 2.5 TO 5 M. ELSEWHERE W OF A LINE FROM 41N170E TO
36N172E TO 32N168E TO 30N160E WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 44N177W 992 MB. FROM 40N TO 45N BETWEEN
173W AND 179W WINDS 40 TO 55 KT. SEAS 4 TO 6 M. ELSEWHERE FROM
38N TO 46N BETWEEN 170W AND 178E WINDS 30 TO 45 KT. SEAS 3.5 TO
5 M. ALSO FROM 36N TO 46N BETWEEN 168W AND 178E...AND WITHIN AN
AREA BOUNDED BY
46N178E...39N178E...35N170E...27N160E...34N160E...46N173E...46N17
8E WINDS 20 TO 30 KT. SEAS TO 4.5 M.

...GALE WARNING...
.LOW 59N149W 976 MB MOVING NE 5 KT. WITHIN 600 NM S SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 4 TO 9 M. ELSEWHERE WITHIN 720 NM S AND
SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 3 TO 7 M...EXCEPT TO 4 M
OVER THE EASTERN BERING.
.24 HOUR FORECAST LOW 60N146W 997 MB. WITHIN 60 NM S AND SW OF A
LINE FROM 60N153W TO 59N150W TO 59N146W...AND E OF A LINE FROM
59N46W TO 54N142W TO 52N173W WINDS 20 TO 30 KT. SEAS TO 5 M.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 49N178E 996 MB MOVING NE 20 KT. WITHIN 300 NM E...360 NM
S...420 NM SW AND 240 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 3
TO 6.5 M...HIGHEST S OF CENTER. ELSEWHERE WITHIN AN AREA BOUNDED
BY
56N172E...50N160E...36N173E...39N180W...49N172W...53N179W...56N17
2E WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 53N168W 998 MB.
WITHIN AN AREA BOUNDED BY
53N178W...51N179E...44N174W...42N160W...50N160W...53N178W WINDS
30 TO 45 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR 47N171W. ELSEWHERE
WITHIN AN AREA BOUNDED BY
55N175E...50N176E...43N175W...40N160W...50N160W...54N178W...55N17
5E...AND WITHIN 360 NM NW QUADRANT WINDS 20 TO 30 KT. SEAS TO 4
M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 51N142W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM BETWEEN 60N AND 64N
FROM 169W AND 172W.
.24 HOUR FORECAST DENSE FOG N OF 63N BETWEEN 166W AND 170W.
.48 HOUR FORECAST CONDITINOS IMPROVED.

.FORECASTER SHAW. OCEAN PREDICTION CENTER.

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 THU OCT 16.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 17.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30N140W TO 15N140W TO 14N135W TO 19N121W TO 30N140W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST WITHIN 30N135W TO 30N140W TO 11N140W TO
11N131W TO 13N131W TO 15N121W TO 30N135W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN N SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 09N132W TO 09N135W TO 09N136W TO 08N136W TO 08N132W TO
09N132W WINDS 20 KT OR LESS. SEAS 2.5 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 10N131W TO 11N132W TO 10N135W TO
08N135W TO 08N134W TO 08N132W TO 10N131W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN N SWELL.
.48 HOUR FORECAST WITHIN 11N134W TO 12N134W TO 12N136W TO
10N138W TO 09N138W TO 09N136W TO 11N134W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN N TO NE SWELL.

.06 HOUR FORECAST BROAD LOW PRES...INVEST EP91...NEAR 12N98W
1007 MB. WITHIN 11N97W TO 06N109W TO 06N106W TO 07N104W TO 07N99W
TO 08N98W TO 11N97W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW
SWELL.
.24 HOUR FORECAST LOW PRES...INVEST EP91...POSSIBLE TROPICAL
CYCLONE...NEAR 14N99W 1006 MB. WITHIN 09N96W TO 12N98W TO
09N102W TO 08N107W TO 06N104W TO 08N98W TO 09N96W WINDS 20 KT OR
LESS. SEAS 2.5 M IN S TO SW SWELL.
.48 HOUR FORECAST LOW PRES...INVEST EP91...POSSIBLE TROPICAL
CYCLONE...NEAR 15N100W 1006 MB. WITHIN 16N99W TO 16N100W TO
16N101W TO 15N101W TO 15N99W TO 16N99W E TO SE WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M IN MIXED NW AND S TO SW SWELL. ELSEWHERE
WITHIN 12N97W TO 13N98W TO 13N99W TO 10N100W TO 10N98W TO 10N97W
TO 12N97W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.

.30 HOUR FORECAST WITHIN 30N133W TO 30N140W TO 21N140W TO
27N136W TO 30N133W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.48 HOUR FORECAST WITHIN 30N127W TO 30N140W TO 19N140W TO
24N136W TO 30N127W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.

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

CONVECTION VALID AT 1800 UTC THU OCT 16...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 08N82W TO A 1007 MB LOW PRES NEAR
12N98W...EP91...TO A 1012 MB LOW PRES NEAR 07N135.5W TO 09N140W.
SCATTERED MODERATE ISOLATED STRONG FROM 11N TO 16N BETWEEN 94W
AND 102W. SCATTERED MODERATE FROM 06N TO 13N BETWEEN 84W AND
90W. WIDELY SCATTERED FROM 09N TO 12N BETWEEN 100W AND 115W.

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.