447
FZPN02 KWBC 161725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC THU OCT 16 2025

CCODE/1:31:12:01:00/AOW+POR/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 1200 UTC OCT 16.
24 HOUR FORECAST VALID 1200 UTC OCT 17.
48 HOUR FORECAST VALID 1200 UTC OCT 18.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MEAN CENTER NEAR 58N153W 976 MB MOVING E 15
KT. FROM 51N TO 55N BETWEEN 144W AND 164W WINDS 35 TO 50 KT.
SEAS 5 TO 10 M. ELSEWHERE WITHIN 600 NM S SEMICIRCLE...AND N OF
50N BETWEEN 130W AND 133W WINDS 25 TO 40 KT. SEAS 3 TO 8 M. ALSO
WITHIN 720 NM S AND W SEMICIRCLES WINDS 20 TO 30 KT. SEAS 2.5 TO
5.5 M.
.24 HOUR FORECAST LOW 59N142W 997 MB. E OF A LINE FROM 60N153W
TO 56N157W TO 50N139W...ALSO WITHIN 120 NM S AND SW OF A LINE
FROM 59N157W TO 61N164W TO 64N167W WINDS 20 TO 30 KT. SEAS 2.5
TO 6 M...EXCEPT TO 2.5 M ACROSS THE EASTERN BERING.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...STORM WARNING...
.LOW 40N174W 1008 MB MOVING NE 40 KT. WITHIN 240 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 4 M. ELSEWHERE WITHIN AN
AREA BOUNDED BY
43N170W...40N176W...37N179W...34N176W...40N160W...43N170W WINDS
20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 48N159W 997 MB. FROM 42N TO 48N BETWEEN
153W AND 165W WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN
AN AREA BOUNDED BY
52N165W...38N165W...38N160W...44N145W...48N145W...52N165W WINDS
20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 51N146W 979 MB. FROM 46N TO 51N BETWEEN
143W AND 152W WINDS 40 TO 55 KT. SEAS 6 TO 10 M. ELSEWHERE
WITHIN 600 NM NE...600 NM E...540 NM S...420 NM W AND 360 NM N
QUADRANTS WINDS 30 TO 45 KT. SEAS 3 TO 7 M...HIGHEST S OF
CENTER. ELSEWHERE WITHIN 720 NM OF CENTER WINDS 20 TO 30 KT.
SEAS TO 4.5 M.

...STORM WARNING...
.24 HOUR FORECAST COMPLEX LOW W OF AREA WITH MAIN CENTER 36N156E
1000 MB. W OF A LINE FROM 41N160E TO 40N164E TO 38N167E TO
34N160E WINDS 30 TO 45 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE FROM 32N
TO 41N W OF 168E WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR LOW 43N177E 993 MB. FROM 40N TO 44N BETWEEN 177E AND
178W WINDS 40 TO 55 KT. SEAS 4 TO 6.5 M. ELSEWHERE FROM 36N TO
45N BETWEEN 172E AND 175W WINDS 30 TO 45 KT. SEAS 3.5 TO 5.5 M.
ALSO WITHIN 180 NM W AND NW OF A LINE FROM 37N171E TO 30N163E
WINDS 25 TO 35 KT. SEAS 4 TO 5.5 M. ELSEWHERE WITHIN AN AREA
BOUNDED BY
46N174W...35N170W...34N170E...28N160E...36N160E...45N169E...46N17
4W WINDS 20 TO 30 KT. SEAS TO 3.5 M

...GALE WARNING...
.LOW 50N174E 998 MB MOVING E 20 KT. FROM 43N TO 49N BETWEEN 168E
AND 178E AND WITHIN 120 NM W SEMICIRCLE WINDS 30 TO 45 KT. SEAS
3 TO 6 M...HIGHEST S OF CENTER. ELSEWHERE WITHIN AN AREA BOUNDED
BY
55N170E...49N176W...39N176E...39N170E...43N160E...50N160E...55N17
0E WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 50N172W 999 MB.
WITHIN AN AREA BOUNDED BY
49N165W...41N165W...41N171W...46N180W...53N175E...55N179W...49N16
5W WINDS 30 TO 45 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR 46N175W.
ELSEWHERE WITHIN 180 NM N AND NE OF A LINE FROM 55N179W TO
53N171W TO 49N165W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 51N146W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM BETWEEN 61N AND 63N
FROM 170W AND 173W.
.24 HOUR FORECAST DENSE FOG N OF 63N BETWEEN 167W AND 169W.
.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 1200 UTC THU OCT 16.
24 HOUR FORECAST VALID 1200 UTC FRI OCT 17.
48 HOUR FORECAST VALID 1200 UTC SAT OCT 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 15N95W TO 16N95W TO 15N95W TO 15N96W TO 14N95W TO
15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 25N113W TO 27N119W TO 26N128W TO 30N140W TO 16N140W TO
17N128W TO 25N113W...INCLUDING WITHIN 60 NM OF SHORE...WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST WITHIN 30N137W TO 30N140W TO 11N140W TO
14N129W TO 13N123W TO 16N118W TO 30N137W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED N AND NW SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 09N131.5W TO 08.5N134.5W TO 09N135W TO 08N135W TO
08N134.5W TO 08.5N134.5W TO 09N131.5W WINDS 20 KT OR LESS. SEAS
2.5 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 09N133W TO 10N134W TO 09N134W TO
08N134W TO 08N133W TO 08N133W TO 09N133W WINDS 20 KT OR LESS.
SEAS 2.5 M IN MIXED NW AND SE TO S SWELL.
.48 HOUR FORECAST WITHIN 11N134W TO 11N136W TO 10N136W TO
09N137W TO 08N137W TO 10N135W TO 11N134W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN N SWELL.

.12 HOUR FORECAST BROAD LOW PRES...INVEST EP91...NEAR 12N98W
1007 MB. WITHIN 11N96W TO 10N98W TO 08N99W TO 08N100W TO 07N100W
TO 07N98W TO 11N96W 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 13N98W 1007 MB. WITHIN 12N95W TO 13N96W TO 10N98W
TO 08N98W TO 09N96W TO 10N95W TO 12N95W SW WINDS 20 TO 25 KT.
SEAS 2.5 M. ELSEWHERE WITHIN 09N98W TO 10N100W TO 08N106W TO
06N104W TO 06N102W TO 08N99W TO 09N98W 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 14N99W 1006 MB. WITHIN 12N96W TO 13N97W TO 13N98W
TO 09N101W TO 09N98W TO 10N96W TO 12N96W WINDS 20 KT OR LESS.
SEAS 2.5 M IN S TO SW SWELL.

.36 HOUR FORECAST WITHIN 28N136W TO 30N132W TO 30N140W TO
24N140W TO 25N137W TO 28N136W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N128W TO 30N140W TO 20N140W TO
27N133W TO 30N128W 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 1200 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 08N130W. ITCZ FROM 08N130W TO BEYOND 09N140W.
SCATTERED MODERATE FROM 04N TO 13N BETWEEN 81W AND 96W...AND 08N
TO 10N BETWEEN 115W AND 117W.

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC OCT 16 2025.
24 HOUR FORECAST VALID 0600 UTC OCT 17 2025.
48 HOUR FORECAST VALID 0600 UTC OCT 18 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 08N178W 1007 MB. TROUGH 12N178W TO LOW TO 04N179E. LOW
AND
TROUGH MOVING W 15 KT. WINDS 20 TO 25 KT FROM 11N TO 09N BETWEEN
179E AND 178W. SEAS 2.5 TO 3 M FROM 14N TO 08N BETWEEN 178E AND
171W. SCATTERED MODERATE TSTMS FROM 12N TO 04N BETWEEN 176E AND
176W.
.24 HOUR FORECAST LOW NEAR 09N177E 1006 MB. TROUGH 10N177E TO LOW
TO
07N175E. WINDS 20 TO 25 KT FROM 12N TO 10N BETWEEN 176E AND 178E.
SEAS 2.5 TO 3 M FROM 13N TO 09N BETWEEN 175E AND 179E.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 12N172E 08N171E. WINDS 20
TO 25 KT FROM 12N TO 11N BETWEEN 171E AND 174E. SEAS 2.5 TO 3 M
13N
TO 11N BETWEEN 171E AND 175E.

.FRONT 30N170E 28N164E 28N160E MOVING NE 15 KT. SEAS 2.5 TO 3 M N
OF
LINE 30N177E 26N171E 28N160E.
.24 HOUR FORECAST FRONT 30N175E 29N172E 30N169E. SEAS LOWERED TO
2.5
M OR LOWER.
.48 HOUR FORECAST FRONT MOVED N OF AREA.

.TROUGH 30N156W 27N157W 24N159W MOVING W 10 KT. SEAS 2.5 TO 3 M N
OF
LINE 30N156W 26N160W 16N150W 16N140W. ISOLATED MODERATE TSTMS
WITHIN
90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 28N162W 21N164W. SEAS 2.5 TO 3 M N OF
LINE
30N164W 26N168W 17N152W 12N140W.
.48 HOUR FORECAST TROUGH DISSIPATED. SEAS 2.5 TO 3M N OF LINE
30N169W 23N162W 17N152W 17N140W.

.TROUGH 28N173E 20N170E 14N167E MOVING SW 10 KT. ISOLATED MODERATE
TSTMS WITHIN 270 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 23N165E 12N162E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.48 HOUR FORECAST NEW FRONT 30N168E 25N160E. WINDS 20 TO 25 KT N
OF
LINE 30N164E 28N160E.

.48 HOUR FORECAST WINDS FROM 27N TO 24N BETWEEN 161W AND 159W.
SEAS
2.5 TO 4 M N OF LINE 10N163E 29N160E.

.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF
FORECAST AREA.

.ITCZ 09N140W 09N160W 08N165W 08N176W. SCATTERED MODERATE TSTMS S
OF
16N W OF 155W...AND WITHIN 90 NM ELSEWHERE.

.ISOLATED MODERATE TSTMS IN AREA BOUNDED BY 26N151W 28N146W
15N153W
14N164W 26N151W.


$$

.FORECASTER PIERCE. HONOLULU HI.