394
FZPN01 KWBC 150420
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED OCT 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC OCT 15.
24 HOUR FORECAST VALID 0000 UTC OCT 16.
48 HOUR FORECAST VALID 0000 UTC OCT 17.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 35N164E 998 MB MOVING NE 30 KT. WITHIN 60 NM OF CENTER
WINDS 50 TO 65 KT. SEAS 5 TO 9 M. ELSEWHERE WITHIN 180 NM NW AND
150 NM SE QUADRANTS WINDS 35 TO 50 KT. SEAS 3 TO 6 M. ELSEWHERE
WITHIN 420 NM OF CENTER WINDS 25 TO 35 KT. SEAS 2.5 TO 5
M...HIGHEST W OF CENTER.
.24 HOUR FORECAST LOW 38N180W 1005 MB. WITHIN 180 NM ON EITHER
SIDE OF A LINE FROM 34N174E TO 39N180W TO 39N170W WINDS 25 TO 40
KT. SEAS 3 TO 5 M. ELSEWHERE S OF 42N W OF 168W WINDS LESS THAN
25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 59N147W 986 MB. FROM 51N TO 58N BETWEEN
136W AND 169W WINDS 25 TO 40 KT. SEAS 4 TO 9 M...HIGHEST NEAR
55N146W. ELSEWHERE WITHIN 900 NM W AND 840 NM E SEMICIRCLES
WINDS TO 25 KT. SEAS 2.5 TO 5 M.

...STORM WARNING...
.LOW 52N173W 959 MB MOVING NE 25 KT. FROM 47N TO 51N BETWEEN
169W AND 178W WINDS 45 TO 60 KT. SEAS 6 TO 10 M. ELSEWHERE FROM
42N TO 56N BETWEEN 157W AND 178E WINDS 30 TO 45 KT. SEAS 4 TO 7
M. ELSEWHERE WITHIN 1140 NM SW...1200 NM SE...720 NM E...AND 360
NM N AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 56N160W 969 MB
AND SECOND NEW CENTER 58N149W 980 MB. FROM 49N TO 53N BETWEEN
152W AND 170W...AND N OF A LINE FROM 57N138W TO 59N146W TO
59N154W WINDS 40 TO 50 KT. SEAS 4.5 TO 10 M...HIGHEST NEAR
51N160W. ELSEWHERE FROM 47N TO 61N BETWEEN 135W AND 175W WINDS
30 TO 40 KT. SEAS 3 TO 8 M. ELSEWHERE WITHIN 1140 NM S...900 NM
E...740 NM W AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 6
M.
.48 HOUR FORECAST 45N160W 1004 MB. FROM 41N TO 47N BETWEEN 152W
AND 165W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 840
NM SE AND 540 NM SW QUADRANTS...AND WITHIN 300 NM N SEMICIRCLE
WINDS LESS THAN 25 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.18 HOUR FORECAST LOW 49N165E 1000 MB. WITHIN 120 NM SW QUADRANT
WINDS 30 TO 40 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW 49N168E 997 MB. WITHIN 180 NM SW QUADRANT
WINDS 30 TO 40 KT. SEAS 4 TO 5.5 M. ELSEWHERE FROM 40N TO 54N W
OF 180W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 51N179W 995 MB. FROM 41N TO 52N BETWEEN
171W AND 171E WINDS 25 TO 40 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR
46N179E. ELSEWHERE S OF 55N W OF 169W WINDS LESS THAN 25 KT.
SEAS 2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MEAN CENTER 36N122W 1008 MB DRIFTING E 10 KT.
S OF 45N BETWEEN 118W AND 140W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND. S OF 33N BETWEEN 119W
AND 144W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW INLAND 62N137W 997 MB MOVING E 25 KT. N OF 52N BETWEEN 133W
AND 153W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW MOVED WELL INLAND AND CONDITIONS
DIMINISHED.

.48 HOUR FORECAST FROM 32N TO 43N BETWEEN 120W AND 128W WINDS 20
TO 30 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 48N
BETWEEN 149W AND 153W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.48 HOUR FORECAST DENSE FOG N OF 61N W OF 170W.

.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 WED OCT 15.
24 HOUR FORECAST VALID 0000 UTC THU OCT 16.
48 HOUR FORECAST VALID 0000 UTC FRI OCT 17.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES...INVEST EP91...NEAR 12N94W 1008 MB. WINDS 20 KT OR
LESS. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW PRES...INVEST EP91...NEAR 12.5N95.5W 1006
MB. WITHIN 13N95W TO 14N96W TO 13N97W TO 11N96W TO 09N94W TO
10N94W TO 13N95W W TO NW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW PRES...INVEST EP91...NEAR 13N96W 1005 MB.
WITHIN 14N94W TO 14N95W TO 14N96W TO 12N95W TO 12N94W TO 14N94W
S TO SW WINDS 20 TO 25 KT. SEAS TO 2.5 M. WITHIN 11N95W TO
11N97W TO 09N99W TO 07N99W TO 07N98W TO 08N95W TO 11N95W WINDS 20
KT OR LESS. SEAS 2.5 TO 3 M IN S TO SW SWELL.

.COLD FRONT FROM 30N119W TO 28N126W TO 30N135W. WITHIN 30N119W
TO 30N139W TO 27N135W TO 26N130W TO 27N122W TO 30N119W WINDS 20
KT OR LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 26N113W TO 24N128W
TO 28N140W. WITHIN 28N117W TO 30N140W TO 23N140W TO 22N125W TO
28N117W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL.
.48 HOUR FORECAST COLD FRONT DISSIPATED. FRONTAL TROUGH FROM
22N110W TO 21N130W TO 23N140W. WITHIN 20N129W TO 26N140W TO
14N140W TO 13N134W TO 17N128W TO 20N129W WINDS 20 KT OR LESS.
SEAS LESS THAN 2.5 M...EXCEPT 2.5 TO 3 M IN N TO NE SWELL W OF
130W.

.WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 15N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 16N95W TO 16N96W TO 15N96W TO 15N95W TO
15N94W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.45 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

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

CONVECTION VALID AT 0315 UTC WED OCT 15...

.SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF 08N79W.

.SCATTERED MODERATE WITHIN 30 NM OF 09N85W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 11.5N86W TO LOW PRES...INVEST
EP91...NEAR 12N94W 1008 MB TO 09N105W TO 11N114W TO 08N124W.
ITCZ EXTENDS FROM 08N124W TO 09.5N135W TO 10N140W. SCATTERED
MODERATE FROM 06N TO 10N BETWEEN 94W AND 102W.

$$+
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.