North Pacific High Seas Forecast

FZPN01 KWBC 131548
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC MON OCT 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 13. 
24 HOUR FORECAST VALID 1200 UTC OCT 14.
48 HOUR FORECAST VALID 1200 UTC OCT 15.

.WARNINGS.

...TYPHOON WARNING...
.TYPHOON NAKRI NEAR 34.5N 146.6E AT 1500 UTC OCT 13 MOVING ENE
075 DEG AT 21 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT.
TROPICAL STORM FORCE WINDS WITHIN 135 NM NE QUADRANT...135 NM SE
QUADRANT...125 NM SW QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M
OR GREATER W OF AREA WITH SEAS TO 9.0 M.
.24 HOUR FORECAST TROPICAL STORM NAKRI NEAR 35.7N 156.6E. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 70 KT. TROPICAL STORM FORCE WINDS
WITHIN 170 NM NE QUADRANT...120 NM SE QUADRANT...150 NM SW
QUADRANT...AND 140 NM NW QUADRANT. SEAS 4 M OR GREATER W OF AREA
WITH SEAS TO 10.5 M.
.48 HOUR FORECAST POST-TROPICAL CYCLONE NAKRI NEAR 36.6N 168.6E.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 140 NM NE QUADRANT...60 NM SE QUADRANT...170 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM NE QUADRANT...180 NM SE QUADRANT...600 NM SW QUADRANT...AND
480 NM NW QUADRANT WITH SEAS TO 7 M. ELSEWHERE S OF 41N W OF 180W
WINDS 20 TO 33 KT. SEAS 2.5 TO 7 M...HIGHEST NEAR 35N166E.

...HURRICANE FORCE WIND WARNING...
.LOW 41N166E 1002 MB MOVING NE 40 KT AND RAPIDLY INTENSIFYING.
FROM 34N TO 42N W OF 172E WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5
M...HIGHEST NEAR 39N163E.
.12 HOUR FORECAST LOW 44N175E 988 MB. FROM 39N TO 44N BETWEEN
172E AND 178E WINDS 40 TO 55 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW 49N175W 965 MB. WITHIN 120 NM SW SEMICIRCLE
WINDS 55 TO 75 KT. SEAS 4 TO 8 M. ELSEWHERE FROM 45N TO 50N
BETWEEN 171W AND 178W AND WITHIN 60 NM E OF FRONT FROM 45N172W TO
41N175W WINDS 40 TO 55 KT. SEAS 3.5 TO 7.5 M. ALSO...EXCEPT WHERE
DESCRIBED WITH LOW 50N177E BELOW...BETWEEN 52N AND A LINE FROM
34N180W TO 40N164W AND WITHIN 240 NM SE OF A FRONT FROM 38N180W
TO 36N172E WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW 53N165W 963 MB. WITHIN 360 NM S AND SW
QUADRANTS AND ACROSS THE BERING SEA BETWEEN 240 NM AND 420 NM NE
QUADRANT WINDS 40 TO 55 KT. SEAS 5 TO 10 M...EXCEPT WITHIN NE
QUADRANT ACROSS THE BERING SEA SEAS 2.5 TO 4.5 M. ELSEWHERE FROM
38N TO 61N BETWEEN 142W AND 176E AND FROM 44N TO 51N BETWEEN 176E
AND 167E WINDS 25 TO 40 KT. 2.5 TO 8 M...HIGHEST S OF THE
ALEUTIAN ISLANDS FROM 44N TO 53N BETWEEN 159W AND 175W.

...STORM WARNING...
.LOW 49N166E 997 MB MOVING E 20 KT. FROM 43N TO 50N W OF 170E
WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 50N177E 977 MB. WITHIN 300 NM S AND 180 NM
W QUADRANTS WINDS 40 TO 50 KT. SEAS 3.5 TO 7 M. ELSEWHERE FROM
40N TO 55N W OF 180W WINDS 25 TO 40 KT. SEAS 2.5 TO 6 M...HIGHEST
S OF LOW.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
53N165W DESCRIBED ABOVE.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 44N124W 1004 MB MOVING S 15 KT AND
SECOND CENTER 41N124W 1004 MB MOVING S 10 KT. WITHIN 480 NM W
SEMICIRCLE OF SECOND CENTER WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE S OF 52N BETWEEN 119W AND 139W WINDS TO 25 KT. SEAS TO
3.5 M.
.24 HOUR FORECAST LOW 37N123W 1004 MB WITH FIRST CENTER
DISSIPATED. S OF 47N BETWEEN 119W AND 138W WINDS 20 TO 30 KT.
SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW DISSIPATED. S OF 39N BETWEEN 118W AND 141W

WINDS LESS THAN 25 KT. SEAS TO 3 M.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 57N156W 997 MB MOVING NE 10 KT AND
SECOND CENTER 60N148W 1000 MB MOVING NE 10 KT. WITHIN 420 NM SE
QUADRANT OF FIRST CENTER AND BETWEEN ALASKA COAST AND A FRONT
FROM FIRST CENTER TO SECOND CENTER TO 59N141W TO 56N137W WINDS 25
TO 35 KT. SEAS TO 4 M. ELSEWHERE WITHIN 540 NM E AND 960 NM S
QUADRANTS OF FIRST CENTER WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW DISSIPATED INLAND AND ASSOCIATED
CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 53N178E 990 MB MOVING NE 20 KT. FROM 42N TO 52N BETWEEN 167W
AND 170E WINDS 25 TO 35 KT. SEAS 3.5 TO 7 M.
.24 HOUR FORECAST LOW 57N171W 995 MB. WITHIN 360 NM SE QUADRANT
WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 58N146W 1005 MB. FROM 46N TO 58N
BETWEEN 140W AND 150W AREA OF SW TO S WINDS 20 TO 30 KT. SEAS TO
3.5 M.
.30 HOUR FORECAST LOW 59N143W 999 MB. WITHIN 240 NM E AND 360 NM
S QUADRANTS WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW MOVED WELL INLAND. CONDITIONS DIMINISHED.

...GALE WARNING...
.48 HOUR FORECAST LOW 47N163E 1006 MB. N OF 41N W OF 167E WINDS
25 TO 35 KT. SEAS TO 3.5 M.

.SYNOPSIS AND FORECAST.

.LOW 36N156W 1018 MB MOVING N 15 KT. WITHIN 180 NM NE OF A LINE
FROM 38N155W TO 33N147W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.EXCEPT WHERE DESCRIBED ABOVE...S OF 55N W OF 160W WINDS TO 25
KT. SEAS 2.5 TO 5 M IN MIXED SWELL...HIGHEST NEAR 40N180W.
.24 HOUR FORECAST S OF THE ALEUTIAN ISLANDS AND MAINLAND ALASKA
BETWEEN 150W AND 160E WINDS LESS THAN 25 KT. SEAS TO 4 M IN MIXED
SWELL.
.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM NW OF
A LINE FROM 46N157W TO 53N150W AND BETWEEN ALASKA COAST AND A
LINE FROM 55N155W TO 59N149W TO 59N144W.
.24 HOUR FORECAST DENSE FOG FROM 53N TO 56N BETWEEN 146W AND
148W.
.48 HOUR FORECAST DENSE FOR FROM 44N TO 53N BETWEEN 146W AND
151W.

.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 1200 UTC MON OCT 13.
24 HOUR FORECAST VALID 1200 UTC TUE OCT 14.
48 HOUR FORECAST VALID 1200 UTC WED OCT 15.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRESSURE NEAR 31N114W 1000 MB. WITHIN 31N113W TO 31N114W TO
31N115W TO 30N115W TO 30N114W TO 31N113W...INCLUDING THE GULF OF
CALIFORNIA... S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW PRESSURE DISSIPATED. CONDITIONS IMPROVE. 
WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.WITHIN 30N118W TO 30N126W TO 27N124W TO 26N121W TO 27N118W TO
30N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT APPROACHING FROM THE N. FROM WITHIN
30N124W TO 30N130W TO 29.5N128.5W TO 29.5N126.5W TO 30N124W 
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N113W TO 26N125W TO 30N138W.
WITHIN 30N118W TO 30N139W TO 27N136W TO 25N131W TO 27N121W TO 
30N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.24 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 14N96W TO 14N95W TO
15N95W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 16N95W TO 14N97W TO 13N98W TO 13N96W TO
14N95W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC... NE WINDS
20 TO 30 KT. SEAS TO 2.5 M.

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

CONVECTION VALID AT 1500 UTC MON OCT 13...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 12N87W TO 1008 MB LOW PRESSURE NEAR 12N92W 
TO 09N127W. ITCZ FROM 09N127W TO BEYOND 09N140W. SCATTERED 
MODERATE FROM 12N TO 14N BETWEEN 93W AND 95W.


.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

$$