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s https://ocean.weather.gov/contact/index.php https://ocean.weather.gov/images/xml_logo_opc.gif https://ocean.weather.gov/ NOAA logo OPC High Seas Forecast (East and Central N Pacific) 95 45 OPC East and Central N Pacific High Seas Forecast HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC MON OCT 13 2025

CCODE/2:31:12:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC OCT 13.
24 HOUR FORECAST VALID 0000 UTC OCT 14.
48 HOUR FORECAST VALID 0000 UTC OCT 15.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW W OF AREA 39N157E 1006 MB MOVING NE 35 KT. WITHIN 180 NM NE
AND 300 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 44N176E 984 MB AND RAPIDLY INTENSIFYING.
FROM 38N TO 45N BETWEEN 179E AND 172E WINDS 35 TO 50 KT. 4 TO 6
M. ELSEWHERE FROM 36N TO 46N W OF 177W WINDS 25 TO 35 KT. SEAS
3.5 TO 5 M. ELSEWHERE S OF 47N W OF 160W WINDS TO 25 KT. SEAS TO
4 M.
.36 HOUR FORECAST LOW 49N176W 962 MB. WITHIN 90 NM S AND 60 NM N
WINDS 50 TO 70 KT. SEAS 6 TO 10 M.
.48 HOUR FORECAST LOW 51N173W 956 MB. WITHIN 120 NM SW
SEMICIRCLE WINDS 50 TO 65 KT. SEAS 7 TO 10 M. ELSEWHERE WITHIN
420 NM S...240 NM E...180 NM W QUADRANTS...AND WITHIN 180 NM E
OF A LINE FROM 44N165W TO 47N163W TO 52N164W TO 55N169W WINDS 35
TO 50 KT. SEAS 5 TO 10 M. ELSEWHERE FROM 40N TO 58N BETWEEN 156W
AND 171E WINDS 25 TO 35 KT. SEAS 3 TO 7 M. ELSEWHERE S OF 58N W
OF 152W...EXCEPT IN AREA DESCRIBED WITH LOW 35N162E DESCRIBED IN
STORM WARNING BELOW...WINDS TO 25 KT. SEAS 2.5 TO 5 M.

...STORM WARNING...
.48 HOUR FORECAST LOW 35N162E 998 MB. FROM 33N TO 37N W OF 166E
WINDS 35 TO 50 KT. SEAS 4 TO 8 M. ELSEWHERE S OF 41N W OF 170E
WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.

...GALE WARNING...
.LOW 47N124W 1005 MB MOVING S 25 KT. FROM 40N TO 53N E OF 139W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.12 HOUR FORECAST LOW 41N124W 1000 MB. FROM 35N TO 45N BETWEEN
126W AND 135W WINDS 25 TO 35 KT. SEAS 3.5 TO 4.5 M.
.24 HOUR FORECAST LOW 37N123W 1001 MB. FROM 33N TO 45N BETWEEN
125W AND 134W WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5 M. ELSEWHERE W
OF 49N E OF 140W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW DISSIPATED INLAND. S OF 44N BETWEEN 119W
AND 141W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR
35N127W.

...GALE WARNING...
.LOW 59N149W 1011 MB MOVING NE 15 KT. N OF A LINE FROM 59N142W
TO LOW CENTER TO 58N151W WINDS 25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 52N172E 988 MB MOVING NE 25 KT. WITHIN 480 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 4 TO 7 M. ELSEWHERE N OF 30 N W OF
170W...EXCEPT IN ARE DESCRIBED BY LOW 39N157E DESCRIBED IN
HURRICANE FORCE WIND WARNING ABOVE...WINDS TO 25 KT. SEAS 2 TO 5
M.
.24 HOUR FORECAST LOW 54N174W 992 MB. WITHIN 240 NM S SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M...HIGHEST S OF ALEUTIAN
ISLANDS. ELSEWHERE FROM 47N TO 56N BETWEEN 160W AND 180W WINDS
TO 25 KT. SEAS 2.5 TO 5.5 M...HIGHEST NEAR 48N176E.
.48 HOUR FORECAST LOW MOVED INLAND AND CONDITIONS DIMINISHED.

...GALE WARNING...
.18 HOUR FORECAST LOW 50N169E 987 MB. FROM 44N TO 51N W OF 171E
WINDS 25 TO 35 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW 50N170E 982 MB. FROM 47N TO 52N W OF 177E
WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M. ELSEWHERE N OF 47N W OF 180W
WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW AND CONDITIONS MERGED WITH LOW 51N173W
DESCRIBED ABOVE.

...GALE WARNING..
.24 HOUR FORECAST NEW LOW 50N152W 1012 MB. FROM 41N TO 53N
BETWEEN 146W AND 160W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.42 HOUR FORECAST LOW 58N142W 1000 MB. FROM 53N TO 58N BETWEEN
139W AND 145W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW INLAND 61N140W 994 MB. N OF 57N BETWEEN
136W AND 141W WINDS 30 TO 40 KT. SEAS 3 TO 4.5 M. ELSEWHERE N OF
52N BETWEEN 135W AND 148W WINDS 2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW 35N152W 1018 MB MOVING NW 15 KT. S OF 38N BETWEEN 145W AND
170W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 39N156W 1018 MB. S OF 41N BETWEEN 147W AND
160W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.S OF 40N BETWEEN 117W AND 128W WINDS 20 TO 30 KT. SEAS 2.5 TO
3.5 M.
.24 HOUR FORECAST CONDITIONS MERGED WITH LOW 37N123W DESCRIBED
ABOVE.

.LOW 53N161W 1003 MB MOVING NE 20 KT. FROM 38N TO 58N BETWEEN
145W AND 170W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR
49N160W.
.24 HOUR FORECAST LOW INLAND 61N152W 998 MB. N OF 53N BETWEEN
138W AND 160W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.SATELLITE DATA AND A RECENT PILOT REPORT AT 2120Z SUGGEST THAT
ASH EMISSIONS FROM SHISHALDIN VOLCANO AT 55N164W HAS BEGUN WITH
THE POSSIBILITY THAT VOLCANIC ASH IS REACHING THE OCEAN SURFACE.
MARINERS SHOULD EXERCISE CAUTION. IF MARINERS ENCOUNTER VOLCANIC
ASH PLEASE REPORT THE OBSERVATION TO THE OCEAN PREDICTION CENTER
BY CALLING 301 683 1520.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N WITHIN 180 NM NW
OF A LINE FROM 45N163W TO 55N154W AND N OF 62N W OF ALASKA.
.24 HOUR FORECAST DENSE FOG WITHIN120 NM NW OF A LINE FROM
46N155W TO 54N147W AND N OF 65N W OF ALASKA. .
.48 HOUR FORECAST CONDITIONS IMPROVED.

.FORECASTER POCHE. 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 0000 UTC MON OCT 13.
24 HOUR FORECAST VALID 0000 UTC TUE OCT 14.
48 HOUR FORECAST VALID 0000 UTC WED OCT 15.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 29N117W TO 30N128W TO 26N123W TO 26N119W TO 29N117W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 30N119W TO 30N123W TO 29N122W TO
28N120W TO 28N119W TO 30N119W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 30N120W TO 30N137W TO 28N133W TO
27N128W TO 28N123W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N SWELL.

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

.33 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 15N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 15N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS LESS THAN 2.5 M.

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

CONVECTION VALID AT 0200 UTC MON OCT 13...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 13N87W TO 11N94W TO 09N125W. ITCZ FROM
09N125W TO 09N140W. SCATTERED MODERATE FROM 11N TO 14N BETWEEN
92W AND 98W.

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 0000 UTC OCT 13 2025.
24 HOUR FORECAST VALID 0000 UTC OCT 14 2025.
48 HOUR FORECAST VALID 0000 UTC OCT 15 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N178E 27N170E 26N164E MOVING NE 10 KT.
.24 HOUR FORECAST TROUGH 30N1722 27N180W 27N170E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.LOW 30N160W 1015 MB MOVING E 10 KT. TROUGH FROM LOW TO
27N169W.
.24 HOUR FORECAST LOW 30N161W 1018 MB. TROUGH FROM LOW TO
24N170W.
.48 HOUR FORECAST LOW WEAKENS TO TROUGH 28N163W 25N165W 22N170W.

.TROUGH 30N150W 25N158W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 28N151W 25N155W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.LOW 12N164W 1010 MB MOVING W 10 KT. TROUGH FROM LOW TO 13N162W.
.24 HOUR FORECAST TROUGH 15N169W 09N168W.
.48 HOUR FORECAST TROUGH 12N170W 08N173W.

.TROUGH 10N165E 01N173E MOVING W 15 KT.
.24 HOUR FORECAST TROUGH 09N165E 05N165E.
.48 HOUR FORECAST TROUGH 10N163E 04N164E.

.WINDS 20 KT OR LESS OVER ENTIRE AREA.

.SEAS 2.5 TO 4 M N OF LINE 15N160E 15N180W 25N165W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 15N160E 10N170E
10N165W
25N155W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N170E 10N170E
10N170W
30N150W.

.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 08N140W 08N150W 09N156W...AND 09N168W 08N175W. SCATTERED
MODERATE TSTMS FROM 05N TO 13N BETWEEN 158W AND 178W.

.SCATTERED MODERATE TSTMS FROM 10N TO 20N W OF 165E. ISOLATED
MODERATE TSTMS FROM 00N TO 06N BETWEEN 175E AND 170E.

$$

.FORECASTER PECHACEK. HONOLULU HI.
]]> Mon, 13 Oct 2025 05:26:37 +0000 https://ocean.weather.gov/shtml/NFDHSFEPI.php https://ocean.weather.gov/shtml/NFDHSFEPI.php?202510130526 Ocean Prediction Center web team pFad - Phonifier reborn

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