341
FZPN01 KWBC 290418
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT NOV 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 NOV 29.
24 HOUR FORECAST VALID 0000 UTC NOV 30.
48 HOUR FORECAST VALID 0000 UTC DEC 01.

.WARNINGS.

...STORM WARNING...
.LOW 43N174W 959 MB MOVING NE 15 KT. BETWEEN 120 NM AND 660 NM
SW...AND BETWEEN 180 NM AND 540 NM SE QUADRANTS...AND WITHIN 240
NM W AND N OF A LINE FROM 43N176W TO 49N174W TO 49N165W TO
45N157W WINDS 35 TO 50 KT. SEAS 6 TO 11.5 M...HIGHEST S OF
CENTER. ELSEWHERE S OF 60N BETWEEN 152W AND 166E WINDS 25 TO 35
KT. SEAS 4 TO 9 M...HIGHEST S OF CENTER.
.24 HOUR FORECAST LOW 47N169W 967 MB. BETWEEN 300 NM AND 840 NM
NW...660 NM SW...AND 900 NM SE QUADRANTS...AND FROM 55N TO 61N
BETWEEN 146W AND 169W...AND FROM 39N TO 49N BETWEEN 146W AND 151W
WINDS 25 TO 40 KT. SEAS 4.5 TO 8.5 M. ELSEWHERE S OF 62N BETWEEN
143W AND 169E WINDS TO 25 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 50N174W 980 MB.
FROM 45N TO 54N BETWEEN 145W AND 175W...AND WITHIN 660 NM NW OF A
LINE FROM 46N178W TO 65N160W WINDS 25 TO 40 KT. SEAS 4 TO 6.5
M...HIGHEST NEAR 54N177E.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER WELL W OF AREA NEAR 50N147E 986 MB
NEARLY STATIONARY. S OF 50N W OF 164E WINDS 25 TO 35 KT. SEAS TO
4 M.
.24 HOUR FORECAST COMPLEX LOW WITH NEW MEAN CENTER NEAR 40N172E
990 MB. WITHIN 180 NM SW AND 90 NM NE OF A LINE FROM 37N175E TO
44N163E WINDS 35 TO 50 KT. SEAS 4.5 TO 6.5 M. ELSEWHERE SW AND W
OF A LINE FROM 30N179E TO 37N180W TO 51N162E WIND 25 TO 35 KT.
SEAS 3 TO 5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 39N175W 980 MB. S
OF 46N BETWEEN 162W AND 164W WINDS 25 TO 40 KT. SEAS 4.5 TO 6.5
M. ELSEWHERE S OF 46N W OF 148W WINDS TO 25 KT. SEAS 3 TO 5 M.

...STORM WARNING...
.30 HOUR FORECAST NEW LOW 52N150W 989 MB. FROM 47N TO 53N BETWEEN
142W AND 150W...AND 180 NM NE OF A LINE FROM 54N143W TO 59N154W
WINDS 25 TO 35 KT. SEAS LESS THAN 4 M.
.36 HOUR FORECAST LOW 56N151W 989 MB. FROM 58N TO 60N BETWEEN
147W AND 155W WINDS 35 TO 50 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 59N153W 992 MB. N OF 59N BETWEEN 143W AND
149W WINDS 40 TO 50 KT. SEAS 4 TO 5.5 M. ELSEWHERE WITHIN 180 NM
NE OF A LINE FROM 54N137W TO 57N141W TO 59N149W TO LOW CENTER
WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY N OF 62N W OF ALASKA.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF
ALASKA.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE
FROM 62N74W TO 65N166W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF 61N W OF ALASKA.

.SYNOPSIS AND FORECAST.

.LOW 40N138W 1007 MB MOVING SE 20 KT. FROM 34N TO 45N BETWEEN
130W AND 145W WINDS 20 TO 30 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR
38N140W.
.24 HOUR FORECAST LOW 33N132W 1012 MB. CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 52N
BETWEEN 162W AND 179W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 56N BETWEEN 144W AND
157W...AND WITHIN 420 NM NW OF A LINE FROM 53N157W TO 46N180W.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 59N BETWEEN 139W AND
143W...AND WITHIN 240 NM NW OF A LINE FROM 46N178E TO 60N164W.

.FORECASTER POCHE. 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 0000 UTC SAT NOV 29.
24 HOUR FORECAST VALID 0000 UTC SUN NOV 30.
48 HOUR FORECAST VALID 0000 UTC MON DEC  1.

.WARNINGS.

...GULF OF TEHUANTEPEC GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 25 TO
35 KT. SEAS LESS 2.5 M TO 3.0 M. WITHIN 14N95W TO 13N97W TO
11N100W TO 10N100W TO 10N98W TO 14N95W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN NE SWELL.
.06 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N97W TO 13N97W
TO 13N96W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.45 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W
TO 14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.SYNOPSIS AND FORECAST.

.WITHIN 11N86W TO 12N86W TO 11N88W TO 09N88W TO 09N86W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 30
KT. SEAS TO 2.5 M.
.15 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 30N139W TO 30N138W TO 30N140W TO 29N140W TO 30N139W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W TO NW SWELL.
.24 HOUR FORECAST WITHIN 30N129W TO 30N140W TO 25N140W TO
25N136W TO 27N131W TO 30N129W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.09 HOUR FORECAST WITHIN 14N138W TO 15N140W TO 07N140W TO
08N139W TO 11N137W TO 14N138W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN NW SWELL.

.36 HOUR FORECAST WITHIN 17N115W TO 18N116W TO 17N119W TO
15N120W TO 14N119W TO 15N117W TO 17N115W NE WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 19N112W TO 19N116W TO 18N119W TO
16N120W TO 15N118W TO 17N113W TO 19N112W NE TO E WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.

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

CONVECTION VALID AT 0350 UTC SAT NOV 29...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 08N82W TO 09N110W TO 10N125W.
THE ITCZ STRETCHES FROM 10N125W TO BEYOND 08N140W. SCATTERED
MODERATE TO ISOLATED STRONG FROM 03N TO 10N EAST OF 90W...AND
FROM 06N TO 16N BETWEEN 103W AND 113W. SCATTERED MODERATE FROM
03N TO 12N W OF 126W.


.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.

$$