013
FZPN01 KWBC 032146
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI OCT 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).



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 1800 UTC OCT 03.
24 HOUR FORECAST VALID 1800 UTC OCT 04.
48 HOUR FORECAST VALID 1800 UTC OCT 05.

.WARNINGS.

...STORM WARNING...
.LOW 55N178E 974 MB MOVING NE 15 KT. FROM 46N TO 56N BETWEEN 171W
AND 172E WINDS 35 TO 50 KT. SEAS 3 TO 8 M...HIGHEST NEAR 48N179E.
ELSEWHERE...EXCEPT WHERE DESCRIBED BELOW WITH LOW 39N160W...N OF
38N W OF 166W WINDS 25 TO 35 KT. SEAS 2.5 TO 7 M...HIGHEST WITHIN
600 NM S QUADRANT.
.24 HOUR FORECAST LOW 62N178W 970 MB. WITHIN 540 NM SW QUADRANT
WINDS 30 TO 45 KT. SEAS 4 TO 7 M. ELSEWHERE N OF THE ALEUTIAN
ISLANDS W OF THE ALASKA COAST AND FROM 50N TO 60N BETWEEN 146W
AND 157W WINDS 25 TO 40 KT. SEAS 2.5 TO 6 M...HIGHEST WITHIN THE
BERING SEA W OF 172W.
.48 HOUR FORECAST LOW 61N178W 984 MB. N OF THE ALEUTIAN ISLANDS
BETWEEN 168W AND 173E WINDS 25 TO 40 KT. SEAS 2.5 TO 6
M...HIGHEST NEAR 59N180W.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 39N160W 1006 MB MOVING N 20 KT.
WITHIN 480 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS TO 4 M.
ELSEWHERE S OF 52N BETWEEN 150W AND 170W WINDS 20 TO 30 KT. SEAS
2.5 TO 5 M. ALSO WITHIN 900 NM SW AND 720 NM NW QUADRANTS WINDS
LESS THAN 25 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMBINED LOW 48N159W 1010 MB. FROM 36N TO 50N
BETWEEN 146W AND 160W AREA OF S WINDS TO 25 KT. SEAS TO 3.5 M.
ELSEWHERE S OF 36N BETWEEN 146W AND 165W WINDS LESS THAN 25 KT.
SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW TO FORM NEAR 52N173W 1000 MB. WITHIN
600 NM SW QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE
FROM 40N TO THE ALEUTIAN ISLANDS W OF 163W WINDS 20 TO 30 KT.
SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 56N160W 997 MB.
WITHIN 240 NM W QUADRANT AND S OF THE ALEUTIAN ISLANDS WITHIN 540
NM S QUADRANT WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE S OF
THE ALEUTIAN ISLANDS FROM 44N TO 56N BETWEEN 144W AND 180W WINDS
20 TO 30 KT. SEAS 2.5 TO 4 M. ALSO WITHIN 1080 NM S QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 3 M.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 59N154W 1004 MB. FRONT TO EXTEND FROM
LOW CENTER TO 59N146W TO 59N141W TO 57N137W. WITHIN 120 NM N AND
NE OF FRONT WINDS 25 TO 35 KT. SEAS TO 3.5 M.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 55N163E 992 MB. W OF A LINE FROM
42N165E TO 48N180W TO 52N180W TO 54N170E WINDS 25 TO 40 KT. SEAS
2.5 TO 5 M. ELSEWHERE...EXCEPT WHERE DESCRIBED ABOVE...WITHIN 840
NM SE QUADRANT WINDS LESS THAN 25 KT. SEAS TO 3 M.

.SYNOPSIS AND FORECAST.

.LOW 60N148W 1011 MB MOVING SE 10 KT. WITHIN 240 NM SE AND 300 NM
SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.LOW 47N127W 1017 MB MOVING SE 15 KT. WITHIN 240 NM W QUADRANT
AND S OF 41N BETWEEN 118W AND 126W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED. FROM 30N TO 41N BETWEEN 118W
AND 128W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 32N TO 46N BETWEEN 123W AND 132W WINDS 20
TO 30 KT. SEAS TO 3 M.

.LOW 55N133W 1014 MB MOVING SE 20 KT. WITHIN 180 NM E AND 480 NM
S QUADRANTS WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.24 HOUR FORECAST WITHIN 150 NM N AND NW OF A LINE FROM 31N160E
TO 33N172E NE TO E WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 33N TO 36N W OF 175W E WINDS TO 25 KT.
SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 48N
BETWEEN 148W AND 164W AND WITHIN 90 NM N OF A LINE FROM 62N175W
TO 62N168W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 59N BETWEEN 146W AND 160W
AND FROM 56N TO 58N BETWEEN 176E AND 174E.
.48 HOUR FORECAST DENSE FOG WITHIN THE AREA BOUNDED BY A LINE
FROM 47N148W TO 58N138W TO 57N151W TO 46N151W TO 47N148W AND
WITHIN 60 NM OF 60N176W.

.FORECASTER JOSEPH. 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 1800 UTC FRI OCT 03.
24 HOUR FORECAST VALID 1800 UTC SAT OCT 04.
48 HOUR FORECAST VALID 1800 UTC SUN OCT 05.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM OCTAVE NEAR 13.7N 121.7W 1000 MB AT 2100 UTC OCT
03 MOVING WNW OR 290 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N
SEMICIRCLE...40
NM SE QUADRANT AND 0 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN
75
NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND 45 NM SW QUADRANT
WITH SEAS TO 5 M. ELSEWHERE WITHIN 150 NM N SEMICIRCLE...120 NM
SE
QUADRANT AND 90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 FT.
REMAINDER OF THE AREA FROM 09N TO 16N BETWEEN 115W AND 120W...AND
FROM 10N TO 20N BETWEEN 120W AND 124W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 14.7N 123.7W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM N SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM OF CENTER...EXCEPT 60
NM SW QUADRANT WITH SEAS TO 6 M. ELSEWHERE WITHIN 180 NM N
SEMICIRCLE...150 NM SE QUADRANT AND 90 NM SW QUADRANT WINDS 20 TO
33 KT. SEAS 3 TO 4 FT. REMAINDER OF THE AREA FROM 09N TO 20N
BETWEEN
118W AND 128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.
.48 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 15.6N 123.8W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90
NM OF CENTER...EXCEPT 60 NM SW QUADRANT WITH SEAS TO 6 M.
ELSEWHERE
WITHIN 180 NM OF CENTER...EXCEPT 120 NM SW QUADRANT WINDS 20 TO
33 KT. SEAS 3 TO 4 FT. REMAINDER OF THE AREA FROM 09N TO 20N
BETWEEN
120W AND 130W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

...GALE WARNING...
.LOW PRES NEAR 13N104.5W 1007 MB. FROM 14N TO 16N BETWEEN 97W AND
105W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 M. FROM 09N TO 12N
BETWEEN 101W AND 108W SW TO W WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N106W 1004 MB. WITHIN 60 NM E SEMICIRCLE AND 45 NM W
SEMICIRCLE WINDS 30 TO 35 KT. SEAS 3 TO 4 M. ELSEWHERE WITHIN
180 N AND 210 S SEMICIRCLES WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N106.5W 1000 MB. WITHIN 150 NM E SEMICIRCLE AND 120 NM W
SEMICIRCLE WINDS 30 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 210
N AND 240 S SEMICIRCLES WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.

.SYNOPSIS AND FORECAST.

.N OF 25N E OF 117W NW WINDS 20 TO 25 KT. SEAS 2.5 M. ELSEWHERE N
OF 23N BETWEEN 115W AND 122W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M
IN NW SWELL.
.24 HOUR FORECAST FROM 21N TO 27N BETWEEN 113W AND 120W...AND N
OF 27N BETWEEN 117W AND 122W WINDS 20 KT OR LESS. SEAS 2.5 M IN
NW
SWELL.
.48 HOUR FORECAST FROM 21N TO 24N BETWEEN 113W AND 115W WINDS 20
KT OR LESS. SEAS TO 2.5 M IN NW SWELL.

.N OF 14.5N BETWEEN 94.5W AND 96W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.30 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 2100 UTC FRI OCT 3...

.T.S. OCTAVE...NUMEROUS MODERATE TO STRONG WITHIN 120 NM SW
SEMICIRCLE.

.LOW PRES NEAR 13N104.5W (EP99)...NUMEROUS MODERATE TO STRONG
CONVECTION IS NOTED FROM 14N TO 16N BETWEEN 105W AND 108W.
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS OBSERVED
ELSEWHERE FROM 12N TO 16N BETWEEN 100W AND 110W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS FROM 11N85W TO A 1007 MB LOW PRES
LOCATED NEAR 13N104.5W...THEN RESUMES SW OF TROPICAL STORM
OCTAVE FROM
11N123W TO 08N132W. THE ITCZ CONTINUES FROM 08N132W TO BEYOND
09N140W. ASIDE FROM THE CONVECTION ASSOCIATED WITH OCTAVE AND
THE

LOW PRESSURE, SCATTERED MODERATE TO ISOLATED STRONG CONVECTION
CAN BE FOUND FROM 04N TO 10N E OF 88W TO THE COAST OF
COLOMBIA...FROM
08N TO 14N BETWEEN 92W AND 100W...AND FROM 19N TO 22N BETWEEN
105W AND 108W.

.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$