743
FZPN01 KWBC 121618
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SUN OCT 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 12.
24 HOUR FORECAST VALID 1200 UTC OCT 13.
48 HOUR FORECAST VALID 1200 UTC OCT 14.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 62N168W 960 MB MOVING NE 25 KT. BETWEEN 60 NM AND 180 NM SE
SEMICIRCLE WINDS 55 TO 75 KT. SEAS 6.5 TO 11 M. ELSEWHERE WITHIN
180 NM N...240 NM NE...360 NM SE...S AND 180 NM SW AND NW
QUADRANTS WINDS 40 TO 55 KT. SEAS 4 TO 6.5 M. ALSO N OF THE
ALEUTIAN ISLANDS N OF 52N E OF 180 W WINDS 25 TO 40 KT. SEAS 2.5
TO 4.5 M.
.24 HOUR FORECAST LOW WELL NE OF THE AREA. N OF 53N N OF THE
ALEUTIAN ISLANDS E OF 170W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.36 HOUR FORECAST CONDITIONS DIMINISHED.

...HURRICANE FORCE WIND WARNING...
.12 HOUR FORECAST LOW W OF THE AREA 39N156E 1006 MB. FROM 35N TO
41N W OF 163E WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 41N165E 1001 MB. WITHIN 180 NM E...240 NM S
AND 300 NM SW QUADRANTS WINDS 35 TO 45 KT. SEAS 4 TO 6 M.
ELSEWHERE FROM 35N TO 43N W OF 173E WINDS 25 TO 35 KT. SEAS 2.5
TO 4.5 M. ALSO FROM 30N TO 43N W OF 173E WINDS TO 25 KT. SEAS TO
3 M.
.36 HOUR FORECAST LOW 45N175E 985 MB. WITHIN 180 NM E...300 NM
SE...360 NM S...420 NM SW AND 180 NM W QUADRANTS WINDS 40 TO 50
KT. SEAS 4.5 TO 6 M.
.48 HOUR FORECAST LOW 50N176W 958 MB. WITHIN 180 NM NE...420 NM
SE...180 NM S AND 180 NM SW QUADRANTS WINDS 50 TO 65 KT. SEAS 5
TO 9 M...HIGHEST NEAR 48N176W. ELSEWHERE WITHIN 240 NM NE...480
NM SE...720 NM S AND 180 NM N QUADRANTS WINDS 35 TO 50 KT. SEAS 4
TO 6.5 M. ALSO FROM 34N TO 54N BETWEEN 163W AND 180W WINDS 25 TO
35 KT. SEAS 2.5 TO 5 M...EXCEPT TO 3 M N OF THE ALEUTIAN ISLANDS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 53N167E MOVING E 15 KT AND A SECOND
CENTER 58N179E MOVING SW 10 KT. WITHIN 420 NM S AND SW OF A LINE
FROM 49N175E TO 50N160E WINDS 35 TO 45 KT. SEAS 4.5 TO 7.5
M...HIGHEST NEAR 47N163E. ELSEWHERE WITHIN 1020 NM SE...840 NM S
AND 300 NM SW QUADRANTS OF MAIN LOW AND BETWEEN 180 AND 420 NM S
QUADRANT OF SECOND LOW WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5
M...EXCEPT TO 3.5 M N OF THE ALEUTIAN ISLANDS.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 53N179E 989 MB AND
SECOND CENTER 56N173E 989 MB. FROM 43N TO 53N BETWEEN 165W AND
172E AND FROM 43N TO 50N W OF 172E WINDS 25 TO 40 KT. SEAS 3.5 TO
6.5 M...HIGHEST NEAR 51N177E...EXCEPT SEAS 2.5 TO 4 M N OF THE
ALEUTIAN ISLANDS.
.48 HOUR FORECAST COMBINED LOW 52N176E 973 MB. WITHIN 180 NM SW
AND 120 NM W QUADRANTS AND WITHIN 360 NM S AND SW OF A LINE FROM
49N180W TO 50N176E WINDS 35 TO 50 KT. SEAS 4.5 TO 7 M...HIGHEST
NEAR 180W. ELSEWHERE FROM 34N TO 56N BETWEEN 180W AND 174E AND
FROM 39N TO 55N W OF 174E WINDS 25 TO 35 KT. SEAS 2.5 TO 5
M...EXCEPT SEAS TO 3 M N OF THE ALEUTIAN ISLANDS.

...GALE WARNING...
.WITHIN AN AREA BOUNDED BY A LINE FROM 48N124W TO 41N132W TO
51N145W TO 55N145W TO 55N132W TO 48N124W AREA OF W TO NW WINDS 20
TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST NEW LOW TO FORM NEAR 42N125W 1004 MB. WITHIN
420 NM W SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M. ELSEWHERE
WITHIN 660 NM SE...540 NM SW AND 660 NM NW QUADRANTS WINDS 20 TO
30 KT. SEAS  2.5 TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 38N124W 1004 MB.
BETWEEN 180 NM AND 480 NM SE...60 NM AND 420 NM SW AND 90 NM AND
600 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M IN MIXED
SWELL.

...GALE WARNING...
.LOW 49N164W 1008 MB MOVING NE 25 KT. WITHIN 120 NM E AND SE OF A
FRONT FROM THE LOW TO 45N166W WINDS 25 TO 35 KT. SEAS 3.5 TO 4.5
M. ELSEWHERE WITHIN 960 NM NE...420 NM E...360 NM SE AND 540 NM S
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M IN MIXED SWELL.
.24 HOUR FORECAST LOW 57N156W 998 MB. WITHIN 90 NM NE OF A LINE
FROM 60N147W TO 58N138W AND WITHIN 360 NM SE SEMICIRCLE WINDS 25
TO 35 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 54N154W. ELSEWHERE
WITHIN 420 NM NE...540 NM SE...780 NM S AND 720 NM SW QUADRANTS
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW MOVED INLAND OVER ALASKA AND DISSIPATED
WITH NEW LOW TO FORM NEAR 53N148W 1008 MB, WITHIN 300 NM NE...240
NM SE AND 360 NM S QUADRANTS OF NEW LOW WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW 33N118W 1007 MB NEARLY STATIONARY. FROM 30N TO 40N E OF 130W
WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED IN
FIRST GALE DESCRIBED ABOVE IN WARNING SECTION.

.COMPLEX LOW WITH MEAN CENTER 31N153W 1018 MB NEARLY STATIONARY.
WITHIN 360 NM N AND NE OF A LINE FROM 37N158W TO 30N145W WINDS TO
25 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 35N158W 1018 MB.
WITHIN 180 NM NE OF A LINE FROM 37N155W TO 32N147W WINDS TO 25
KT. SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW DISSIPATED. FROM 30N TO 45N BETWEEN
148W AND 165W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N WITHIN 120 NM NE
OF A LINE FROM 40N166W TO 53N158W AND W AND NW OF A LINE FROM
59N168W TO 65N166W.
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM NE OF A LINE FROM
45N156W TO 52N152W.
.48 HOUR FORECAST DENSE FOG FROM 52N TO 54N BETWEEN 145W AND 149W
AND N OF 64N W OF 166W.

.FORECASTER FUTTERMAN. 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 1200 UTC SUN OCT 12.
24 HOUR FORECAST VALID 1200 UTC MON OCT 13.
48 HOUR FORECAST VALID 1200 UTC TUE OCT 14.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30N117W TO 30N126W TO 28N125W TO 26N119W TO 30N117W NW
TO N WINDS 20 TO 25 KT. SEAS 2.5 TO 4.5 M IN NW TO N SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.LOW PRESSURE...REMNANT LOW OF RAYMOND...NEAR 25N110W 1004 MB.
WITHIN 26N110W TO 27N110W TO 27N111W TO 26N111W TO 25N110W TO
24N110W TO 26N110W...INCLUDING THE GULF OF CALIFORNIA... S WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST LOW DISSIPATED. CONDITIONS IMPROVE. WINDS 20
KT OR LESS. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 16N94W...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 1500 UTC SUN OCT 12...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 13N87W TO 13N90W TO 09N125W. ITCZ FROM
09N125W TO BEYOND 09N140W. SCATTERED MODERATE FROM 12N TO 15N
BETWEEN 93W AND 98W.


.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

$$