HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC WED DEC 31 2025
CCODE/1:31:12:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 DEC 31.
24 HOUR FORECAST VALID 0000 UTC JAN 01.
48 HOUR FORECAST VALID 0000 UTC JAN 02.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MEAN CENTER NEAR 57N143W 984 MB. WITHIN 120 NM
SE OF A LINE FROM 59N151W TO 56N158W WINDS 40 TO 50 KT. SEAS 3 TO
6 M. ELSEWHERE FROM 52N TO 60N BETWEEN 135W AND 152W...AND FROM
40N TO 59N BETWEEN 152W AND 164W WINDS 25 TO 40 KT. SEAS 3 TO 6
M. ELSEWHERE N OF 42N BETWEEN 127W AND 165W WINDS TO 25 KT. SEAS
3 TO 5 M.
.24 HOUR FORECAST LOW 58N141W 999 MB. WITHIN 150 NM NE
QUADRANT...AND FROM 33N TO 60N BETWEEN 146W AND 160W WINDS 25 TO
40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW 59N140W 1005 MB. CONDITIONS MERGED WITH LOW
42N137W DESCRIBED BELOW.
...STORM WARNING...
.18 HOUR FORECAST LOW 41N161E 1002 MB. FROM 34N TO 43N W OF 166E
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW 44N164E 995 MB. WITHIN 60 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 4 TO 5.5 M. FROM 36N TO 46N W OF 170E
WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
.36 HOUR FORECAST LOW 48N172E 992 MB. WITHIN 150 NM S SEMICIRCLE
WINDS 45 TO 55 KT. SEAS 6 TO 8 M.
.48 HOUR FORECAST LOW 52N180W 996 MB. WITHIN 150 NM S SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 5 TO 8 M. ELSEWHERE FROM 45N TO 56N
BETWEEN 173W AND 173E WINDS 25 TO 35 KT. SEAS 3 TO 6 M...HIGHEST
S OF CENTER.
...GALE WARNING...
.LOW 48N167E 979 MB MOVING NE 20 KT. WITHIN 480 NM S
SEMICIRCLE...300 NM NE QUADRANT...AND 300 NM NE OF A LINE FROM
44N178W TO 54N169E WINDS 25 TO 40 KT. SEAS 4 TO 6 M...HIGHEST S
OF CENTER. ELSEWHERE FROM 39N TO 58N W OF 173W WINDS TO 25 KT.
SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW 54N170E 988 MB. N OF 57N W OF 170W...AND
FROM 46N TO 58N W OF 177W WINDS 25 TO 40 KT. SEAS 4 TO 6 M.
.48 HOUR FORECAST LOW NW OF AREA NEAR 60N176E 997 MB. N OF 61N W
OF 168W WINDS 20 TO 30 KT. SEAS TO 4 M.
...GALE WARNING...
.LOW 36N165E 1009 MB MOVING NE 25 KT. FROM 32N TO 38N BETWEEN
168E AND 161E WINDS 25 TO 40 KT. SEAS 4 TO 5 M. ELSEWHERE S OF
39N W OF 177W WINDS LESS THAN 25 KT. SEAS 4 TO 5 M.
.24 HOUR FORECAST LOW 40N175E 1015 MB. FROM 38N TO 43N BETWEEN
180W AND 174E WINDS TO 25 KT. SEAS 3.5 TO 4 M.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
...GALE WARNING...
.LOW 66N169W 1016 MB MOVING SE 10 KT. WITHIN 300 NM S SEMICIRCLE
WINDS 25 TO 35 KT. SEAS LESS THAN 4 M.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
...GALE WARNING...
.42 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 43N161E 997 MB.
FROM 33N TO 46N W OF 169E WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 45N164E 998 MB.
FROM 34N TO 42N BETWEEN 169E AND 162E WINDS 35 TO 45 KT. SEAS 4
TO 5.5 M. ELSEWHERE S OF 49N W OF 174E WINDS 25 TO 35 KT. SEAS 3
TO 4.5 M.
...GALE WARNING...
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 42N137W 993 MB. S
OF 48N BETWEEN 130W AND 156W WINDS 25 TO 40 KT. SEAS 2.5 TO 6
M...HIGHEST W OF CENTER.
...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF ALAKSA...AND FROM
56N TO 59N BETWEEN 153W AND 163W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 62N W OF
ALASKA. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 57N151W TO 56N160W TO 61N177W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY FROM 62N TO
65N BETWEEN 167W AND 173W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY NE OF A LINE FROM 57N160W TO 62N175W.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 51N W OF
164E...AND FROM 55N TO 60N E OF 140W.
.24 HOUR FORECAST WITHIN 120 NM NE OF A LINE FROM 55N171W TO
59N179E.
.48 HOUR FORECAST DENSE FOG N OF 59N W OF ALASKA...FROM 52N TO
56N BETWEEN 176W AND 173E...AND FROM 42N TO 49N W OF 170E.
.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 WED DEC 31.
24 HOUR FORECAST VALID 0000 UTC THU JAN 1.
48 HOUR FORECAST VALID 0000 UTC FRI JAN 2.
.WARNINGS.
...STORM WARNING...
.WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 45 TO 50
KT. SEAS 2.5 TO 4.5 M. WITHIN 16N93W TO 16N95W TO 16N96W TO
14N97W TO 13N97W TO 13N95W TO 16N93W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 30 TO 40 KT. SEAS 2.5 TO 3.0 M.
WITHIN 13N93W TO 15N93W TO 13N97W TO 16N96W TO 12N103W TO 10N97W
TO 13N93W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.12 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N95W TO 14N96W TO
13N96W TO 14N94W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 35 TO 45 KT. SEAS 2.5 TO 3.0 M.
WITHIN 15N93W TO 16N96W TO 12N104W TO 09N101W TO 08N96W TO 11N92W
TO 15N93W NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 13N97W TO 12N95W TO
13N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M. WITHIN 12N96W TO
12N108W TO 08N106W TO 06N103W TO 07N96W TO 12N96W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30
KT. SEAS LESS THAN 2.5 M.
.SYNOPSIS AND FORECAST.
.WITHIN 24N113W TO 24N115W TO 23N116W TO 22N116W TO 22N114W TO
24N113W SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 31N113W TO 32N115W TO 31N115W TO 30N114W TO
31N113W...INCLUDING THE GULF OF CALIFORNIA... NW WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 11N86W TO 11N89W TO 10N89W TO 10N88W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N88W TO 10N89W TO
09N88W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 12N86W TO 11N88W TO 10N88W TO 10N86W TO
11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.WITHIN 27N127W TO 26N140W TO 17N140W TO 18N129W TO 27N127W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE TO E SWELL.
.21 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 29N134W TO 30N134W TO 30N138W TO
28N139W TO 27N137W TO 29N134W SW TO W WINDS 20 TO 25 KT. SEAS
2.5 TO 3.0 M. WITHIN 30N139W TO 30N140W TO 28N140W TO 29N139W TO
30N139W W TO NW WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 30N130W TO 30N140W TO 26N140W TO
27N133W TO 30N130W W 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 WED DEC 31...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 06N93W. THE ITCZ
STRETCHES FROM 06N93W TO 07N107W TO 13N120W. SCATTERED MODERATE
ISOLATED STRONG FROM 09N TO 21N BETWEEN 108W AND 114W.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 0000 UTC DEC 31 2025.
24 HOUR FORECAST VALID 0000 UTC JAN 01 2026.
48 HOUR FORECAST VALID 0000 UTC JAN 02 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 30N150W 26N153W 25N157W 24N161W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT 30N144W 25N151W 25N162W.
.48 HOUR FORECAST FRONT 26N140W 22N149W 23N163W. WINDS 20 TO 30
KT N OF LINE 30N150W 25N140W.
.FRONT 30N178E 22N171E 19N164E 19N160E MOVING ENE 15 KT N OF 22N
AND NEARLY STATIONARY ELSEWHERE. WINDS 20 TO 25 KT WITHIN 180 NM
NW OF FRONT.
.24 HOUR FORECAST FRONT 30N179W 24N174E 22N168E 21N160E. WINDS
EASED TO 20 KT OR LESS.
.48 HOUR FORECAST NEW LOW NEAR 28N171W 1012 MB. FRONT WEAKENED TO
TROUGH. TROUGH FROM 30N171W TO LOW TO 22N172W. WINDS 20 TO 25 KT
N OF LINE 30N171W 21N160W 27N160W 30N162W.
.24 HOUR FORECAST NEW TROUGH 25N177W 17N175W 10N173W.
.48 HOUR FORECAST TROUGH 24N178W 15N175W 10N174W. WINDS 20 TO 30
KT N OF LINE 30N179W 21N171E 17N178E 25N173W 30N174W.
.SEAS 2.5 TO 4.5 M N OF LINE 16N160E 23N176E 18N174E 12N166E
07N171E 07N140W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N146W 26N148W
22N140W 12N140W 10N149W 20N155W 22N160W 07N151W 07N173E 11N171E
09N160E.
.48 HOUR FORECAST SEAS 2.5 TO 4.5 M N OF LINE 26N140W 21N156W
21N166W 05N175E 10N170E 11N165E 04N160E.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF
FORECAST AREA.
.ITCZ 06N140W 06N169W 03N175E 03N162E. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF ITCZ W OF 178E.
.ISOLATED MODERATE TSTMS FROM 12N TO 10N BETWEEN 162W AND
157W...AND FROM 25N TO 20N BETWEEN 178W AND 176W.
$$
.FORECASTER TROTTER. HONOLULU HI.=