148
FZPN01 KWBC 160402
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC OCT 16.
24 HOUR FORECAST VALID 0000 UTC OCT 17.
48 HOUR FORECAST VALID 0000 UTC OCT 18.

.WARNINGS.

...STORM WARNING...
.LOW 56N160W 970 MB MOVING NE 20 KT. FRONT EXTENDS FROM LOW TO
58N148W TO 58N143W TO 53N140W TO 43N150W. N OF 59N E OF 153W
WINDS 40 TO 55 KT. SEAS 4 TO 6.5 M. ALSO BETWEEN 150 NM AND 650
NM S SEMICIRCLE WINDS 35 TO 50 KT. SEAS 5 TO 10.5 M...HIGHEST
NEAR 51N161W. ELSEWHERE WITHIN 660 NM S SEMICIRCLE AND WITHIN
240 NM N...NE AND E OF FRONT N OF 44N WINDS 25 TO 40 KT. SEAS
3.5 TO 7 M...EXCEPT N AND E OF FRONT SEAS 2.5 TO 4.5 M.
OTHERWISE WITHIN 840 NM SW SEMICIRCLE...1020 NM E AND 540 NM N
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 5.5 M.
.24 HOUR FORECAST LOW 58N148W 986 MB. WITHIN 540 NM S SEMICIRCLE
WINDS 30 TO 45 KT. SEAS 3.5 TO 9.5 M...EXCEPT 2.5 TO 5 M IN
BERING SEA. ELSEWHERE WITHIN 730 NM SE SEMICIRCLE AND 900 NM W
AND 120 NM N QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 6.5 M.
ALSO S OF 48N BETWEEN 132W AND 160W WINDS LESS THAN 25 KT. SEAS
TO 5 M.
.48 HOUR FORECAST LOW 59N141W 1000 MB. FROM 52N TO 59N BETWEEN
132W AND 145W WINDS LESS THAN 25 KT. SEAS 3.5 TO 5.5 M...HIGHEST
NEAR 54N134W.

...STORM WARNING...
.LOW 37N179E 1008 MB MOVING NE 40 KT. WITHIN 180 NM OF LOW AND
FROM 32N TO 37N BETWEEN 177E AND 168E WINDS 25 TO 35 KT. SEAS 3
TO 5 M.
.24 HOUR FORECAST LOW 44N163W 1007 MB. WITHIN 360 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3.5 TO 4.5 M.
.48 HOUR FORECAST LOW 51N156W 980 MB. FROM 45N TO 51N BETWEEN
154W AND 161W AND WITHIN 150 NM W QUADRANT WINDS 40 TO 55 KT.
SEAS 3.5 TO 8 M...HIGHEST NEAR 48N155W. ALSO FROM 42N TO 50N
BETWEEN 156W AND 173W...AND FROM 45N TO 54N BETWEEN 147W AND
162W WINDS 25 TO 40 KT. SEAS 3 TO 7 M...HIGHEST NEAR 47N168W.
ELSEWHERE FROM 39N TO 55N BETWEEN 164W AND WITHIN 960 NM W
QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST S AND SW
OF LOW.

...STORM WARNING...
.36 HOUR FORECAST LOW W OF AREA 37N157E 995 MB. FROM 35N TO 41N
BETWEEN 163E AND 160E WINDS 35 TO 50 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR COMPLEX LOW WITH MEAN CENTER NEAR 40167E 993 MB. WITHIN
180 NM N AND 240 NM E AND W QUADRANTS AND WITHIN 240 NM W OF A
LINE FROM LOW TO 33N163E WINDS 40 TO 55 KT. SEAS 4 TO 7 M.
ELSEWHERE W OF A LINE FROM 44N173E TO 37N175E TO 30N164E WINDS
25 TO 40 KT. SEAS 2.5 TO 4.5 M...HIGHEST S AND SW OF LOW.

...GALE WARNING...
.LOW 49N169E 996 MB MOVING E 20 KT. WITHIN 240 NM SW SEMICIRCLE
AND 180 NM SE QUADRANT WINDS 25 TO 40 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 49N180W 994 MB. FROM 44N TO 50N BETWEEN
180W AND 175E WINDS 35 TO 45 KT. SEAS 4.5 TO 7 M. ELSEWHERE
WITHIN 480 NM S AND 180 NM SE QUADRANTS AND FROM 43N TO 53N
BETWEEN 180W AND 172E WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
51N156W IN STORM WARNING ABOVE.

.SYNOPSIS AND FORECAST.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM N
OF 59N BETWEEN 168W AND 172W.
.48 HOUR FORECAST DENSE FOG FROM 63N TO 65N BETWEEN 164W AND
168W...AND FROM 54N TO 59N BETWEEN 175W AND 178E.

.FORECASTER BANCROFT. 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 THU OCT 16.
24 HOUR FORECAST VALID 0000 UTC FRI OCT 17.
48 HOUR FORECAST VALID 0000 UTC SAT OCT 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.BROAD LOW PRES...INVEST EP91...NEAR 12N94W 1007 MB. WITHIN
14N96W TO 14N98W TO 11N99W TO 11N97W TO 11N96W TO 14N96W WINDS 20
KT OR LESS. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW PRES...INVEST EP91...POSSIBLE TROPICAL
CYCLONE...NEAR 12N98W 1006 MB. WITHIN 10N95W TO 11N95W TO 12N97W
TO 10N99W TO 08N99W TO 07N97W TO 10N95W SW WINDS 20 TO 25 KT.
SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LOW PRES...INVEST EP91...POSSIBLE TROPICAL...
NEAR 13N97W 1005 MB. WITHIN 13N95W TO 13N97W TO 11N98W TO 08N98W
TO 08N96W TO 10N95W TO 13N95W SW WINDS 20 TO 30 KT. SEAS 2.5 TO
3 M.

.DISSIPATING COLD FRONT FROM 29N112W TO 24N120W TO 24N132.5W.
WITHIN 29N118W TO 30N140W TO 24N140W TO 22N133W TO 23N124W TO
29N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN N SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. WITHIN 21N132W TO
30N140W TO 14N140W TO 14N128W TO 18N128W TO 21N132W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 30N136W TO 30N140W TO 15N140W TO
16N139W TO 24N138W TO 30N136W WINDS 20 KT OR LESS. SEAS 2.5 TO 3
M IN NW TO N SWELL.

.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 25 KT. SEAS LESS THAN 2.5 M.
.18 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 THU OCT 16...

.LOW PRES NEAR 12N96W 1007 MB...NUMEROUS STRONG FROM 12N TO 14N
BETWEEN 95W AND 97W.

.SCATTERED MODERATE ISOLATED STRONG FROM 17N TO 21N BETWEEN
103W AND 107W.

.SCATTERED MODERATE WITHIN 60 NM OF LINE FROM 07N82W TO 07N86W
07N89W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 11N86W TO LOW PRES NEAR
12N94W 1007 MB TO 09N105W TO 11N114W TO 08N121W TO 09N133W.
ITCZ EXTENDS FROM 09N133W TO 09N140W. SCATTERED MODERATE
ISOLATED STRONG FROM 09N TO 12N BETWEEN 85W AND 87W...WITHIN 180
NM S OF THE TROUGH BETWEEN 89W AND 92W AND FROM 08N TO 10N
BETWEEN 96W AND 100W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.