East and Central North Pacific High Seas Forecast

FZPN02 KWBC 111725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC THU DEC 11 2025 

CCODE/2:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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). 

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 DEC 11. 
24 HOUR FORECAST VALID 1200 UTC DEC 12. 
48 HOUR FORECAST VALID 1200 UTC DEC 13. 

.WARNINGS. 

...HURRICANE FORCE WIND WARNING... 
.COMPLEX LOW WITH MAIN LOW 42N169E 976 MB MOVING N 15 KT. WITHIN 
120 NM W AND SW SEMICIRCLES OF MAIN CENTER WINDS 55 TO 75 KT. 
SEAS 6.5 TO 11 M. ALSO WITHIN 300 NM OF LOW...EXCEPT 420 NM SE 
QUADRANT WINDS 40 TO 55 KT. SEAS 6 TO 10 M. ELSEWHERE FROM 30N 
TO 49N BETWEEN 176W AND 162E WINDS 25 TO 40 KT. SEAS 2.5 TO 8 M. 
.24 HOUR FORECAST LOW 47N168E 985 MB. WITHIN 360 NM E AND NE 
QUADRANTS WINDS 35 TO 50 KT. SEAS 5 TO 9 M. ELSEWHERE FROM 40N 
TO 56N BETWEEN 178W AND 162E WINDS 25 TO 40 KT. SEAS 3 TO 7 M. 
.48 HOUR FORECAST LOW MOVED NW OF AREA. FORECAST FRONT 54N168E 
TO 50N170E TO 43N171E. WITHIN 300 NM E OF FRONT WINDS 25 TO 35 
KT. SEAS 3 TO 5.5 M.  

...STORM WARNING... 
.LOW 36N150W 1000 MB MOVING NE 25 KT AND INTENSIFYING...WILL 
SLOW AND TURN NW AFTER 24 HOURS. FROM 30N TO 41N BETWEEN 139W 
AND 155W WINDS 25 TO 40 KT. SEAS 3 TO 5 M. 
.06 HOUR FORECAST LOW 39N148W 992 MB. WITHIN 120 NM E AND SE 
QUADRANTS WINDS 35 TO 50 KT. SEAS 4 TO 6 M. 
.24 HOUR FORECAST LOW 47N148W 982 MB. WITHIN 360 NM NE AND 300 
NM NW QUADRANTS WINDS 40 TO 55 KT. SEAS 5.5 TO 8 M. ELSEWHERE 
FROM 40N TO 55N BETWEEN 134W AND 169W WINDS 25 TO 40 KT. SEAS 4 
TO 7 M. 
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 46N154W 979 MB AND 
SECOND NEW LOW 57N147W 997 MB. WITHIN 300 NM W AND NW QUADRANTS 
OF MAIN LOW AND FROM 52N TO 58N BETWEEN 153W AND 160W WINDS 35 
TO 50 KT. SEAS 6 TO 10 M...EXCEPT N OF 53N SEAS 3 TO 7 M.  
ELSEWHERE FROM 42N TO 60N BETWEEN 146W AND 168W WINDS 25 TO 40 
KT. SEAS 2.5 TO 7.5 M. 

...GALE WARNING... 
.24 HOUR FORECAST LOW 36N178W 1007 MB. FROM 32N TO 40N BETWEEN 
174W AND 178E WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M. 
.48 HOUR FORECAST COMPLEX LOW WITH FIRST LOW 31N165W 993 MB AND 
SECOND LOW 31N170W 994 MB. FROM 30N TO 34N BETWEEN 160W AND 177W 
WINDS 25 TO 40 KT. SEAS 4.5 TO 7 M.  

...GALE WARNING... 
.24 HOUR FORECAST W OF A LINE FROM 32N164E TO 40N165E TO 44N160E 
WINDS 30 TO 45 KT. SEAS 2.5 TO 5 M. 
.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE.  

...GALE WARNING... 
.LOW 57N146W 1011 MB MOVING S 10 KT. FROM 53N TO 60N BETWEEN 
145W AND 160W WINDS 25 TO 40 KT. SEAS 3 TO 5 M. 
.24 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS 
DIMINISHED. 

...GALE WARNING... 
.LOW INLAND NW OF AREA 66N175E 1001 MB MOVING N 15 KT. N OF 57N 
BETWEEN 172W AND 178E WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5 M.
.24 HOUR FORECAST LOW DISSIPATED N OF AREA. ASSOCIATED 
CONDITIONS MOVED N OF AREA. 

...GALE WARNING... 
.48 HOUR FORECAST NEW LOW 43N146W 996 MB. WITHIN 300 NM S AND SE 
QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. 

.SYNOPSIS AND FORECAST. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 59N W OF 
172W...AND FROM 39N TO 57N BETWEEN 171E AND 166E. 
.24 HOUR FORECAST DENSE FOG FROM 44N TO 52N BETWEEN 142W AND 
155W. 
.48 HOUR FORECAST DENSE FOG FROM 44N TO 53N BETWEEN 127W AND 
138W...FROM 50N TO 57N BETWEEN 132W AND 152W. 

.LIGHT TO MODERATE FREEZING SPRAY N OF 63N W OF ALASKA...AND N 
AND NE OF A LINE FROM 59N167W TO 56N165W TO 55N155W TO 59N150W 
TO 60N144W TO 57N137W TO 55N133W.  
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF 
ALASKA...AND N AND NE OF A LINE FROM 57N162W TO 57N153W TO 
59N150W TO 59N144W TO 54N133W. 
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N AND NE OF A 
LINE FROM 62N176W TO 58N170W TO 56N160W TO 56N154W TO 59N143W TO 
57N137W TO 54N133W.  

.FORECASTER ROWLAND. 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 1200 UTC THU DEC 11.
24 HOUR FORECAST VALID 1200 UTC FRI DEC 12.
48 HOUR FORECAST VALID 1200 UTC SAT DEC 13.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N93W TO 16N95W TO 16N96W TO 13N96W TO 13N95W TO 13N94W
TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
20 TO 30 KT. SEAS 2.5 M.
.24 HOUR FORECAST WITHIN 16N93W TO 16N95W TO 16N96W TO 13N96W TO
13N95W TO 13N94W TO 16N93W...INCLUDING THE GULF OF 
TEHUANTEPEC... N TO NE 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.

.WITHIN 11N86W TO 11N87W TO 10N87W TO 10N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 10N87W TO 10N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E 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.

.WITHIN 30N134W TO 30N140W TO 23N140W TO 30N134W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. 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 1430 UTC THU DEC 11...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 06N92W TO 09N110W TO 08N124W. ITCZ
FROM 08N124W TO 08N140W. SCATTERED MODERATE FROM 04N TO 08N 
E OF 82W...AND FROM 08N TO 20N BETWEEN BETWEEN 119W AND 132W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1200 UTC DEC 11 2025.
24 HOUR FORECAST VALID 1200 UTC DEC 12 2025.
48 HOUR FORECAST VALID 1200 UTC DEC 13 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 30N177E 24N174E 20N166E THENCE TROUGH 18N160E MOVING E 20
KT. WINDS 20 TO 25 KT NW OF FRONT... AND WITHIN 180 NM E OF FRONT
N OF 25N. ISOLATED MODERATE TSTMS WITHIN 60 NM OF FRONT N OF 28N.
.24 HOUR FORECAST FRONT 30N176W 22N180E 18N170E THENCE TROUGH 
17N160E.
WINDS 20 TO 25 KT BETWEEN FRONT AND A LINE 30N173E 23N160E... AND
WITHIN 150 NM E OF FRONT N OF 23N.
.48 HOUR FORECAST FRONT 30N164W 22N170W 16N180W THENCE TROUGH 
17N170E
17N165E. WINDS 30 TO 40 KT N OF 26N BETWEEN 175W AND 161W. WINDS
20 TO 30 KT N OF A LINE 30N175E 22N170W 27N158W.

.SYNOPSIS AND FORECAST.

.FRONT 30N150W 21N160 19N164W THENCE TROUGH 18N170W 17N173W MOVING
E 10 KT. WINDS 20 TO 30 KT N OF 24N BETWEEN FRONT AND 143W. 
ISOLATED
MODERATE TSTMS WITHIN 60 NM OF A LINE 30N150W 24N152W.
.24 HOUR FORECAST FRONT 30N145W 22N150W 21N154W THENCE TROUGH 
18N160W
17N170W. WINDS 20 TO 25 KT WITHIN 210 NM E OF FRONT N OF 26N.
.48 HOUR FORECAST FRONT 30N141W 24N150W THENCE TROUGH 20N166W. 
WINDS
DIMINISHED TO 25 KT OR LESS.

.48 HOUR FORECAST NEW FRONT 30N166E 25N160E. WINDS 20 TO 25 KT NW
OF FRONT.

.SEAS 4 TO 5 M N OF 27N W OF 175E. SEAS 2.5 TO 4 M ELSEWHERE N OF 
25N
W OF 180E... AND N OF 20N E OF 170W. SEAS 2.5 TO 3 M FROM 10N TO 
20N
BETWEEN 175E AND 170W.
.24 HOUR FORECAST SEAS 4 TO 5 M N OF A LINE FROM 30N178W 22N170E 
22N168E.
SEAS 2.5 TO 4 M N OF A LINE FROM 30N175W 20N170E 17N160E... AND N 
OF
25N BETWEEN 165W AND 142W.
.48 HOUR FORECAST SEAS 5 TO 7 M N OF 28N BETWEEN 180W AND 174W. 
SEAS
4 TO 5 M N OF A LINE 30N170W 21N180W 18N170E. SEAS 2.5 TO 4 N OF A
LINE FROM 30N165W 20N180W 15N160E

.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER THE REMAINDER 
OF THE
FORECAST AREA.

.ITCZ 07N140W 10N156W 07N168W 09N178W 06N174E. ISOLATED MODERATE
TSTMS WITHIN 120 NM N OF FRONT BETWEEN 175E AND 175W.

.ISOLATED MODERATE TSTMS S OF 05N BETWEEN 163E AND 168E.

$$

.FORECASTER SHIGESATO. HONOLULU HI.