High Seas Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
459
FZPN02 KWBC 082325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC MON DEC 08 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 DEC 08.
24 HOUR FORECAST VALID 1800 UTC DEC 09.
48 HOUR FORECAST VALID 1800 UTC DEC 10.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.18 HOUR FORECAST JUST S OF AREA 29N160E 1007 MB. WITHIN 360 NM
NE QUADRANT AREA OF SE WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 30N160E 1002 MB AND RAPIDLY INTENSIFYING.
WITHIN 480 NM NE AND 600 NM E QUADRANTS AREA OF SE WINDS 25 TO
40 KT. SEAS 3 TO 5 M.
.36 HOUR FORECAST LOW 33N164E 999 MB AND RAPIDLY INTENSIFYING.
WITHIN 120 NM W AND 240 NM E SEMICIRCLES WINDS 40 TO 50 KT. SEAS
4 TO 7 M.
.48 HOUR FORECAST LOW 37N167E 978 MB. WITHIN 120 NM W SEMICIRCLE
AREA OF NW WINDS 50 TO 65 KT. SEAS 6 TO 9.5 M. ALSO FROM 32N TO
41N BETWEEN 174E AND 163E WINDS 40 TO 50 KT. SEAS 5 TO 9 M.
ELSEWHERE S OF 44N W OF 178E WINDS 25 TO 40 KT. SEAS 4 TO 7 M.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 55N137W 975 MB MOVING E 15 KT.
WITHIN 240 NM S SEMICIRCLE WINDS 40 TO 50 KT. SEAS 5 TO 8 M.
ALSO FROM 49N TO 54N BETWEEN 129W AND 141W WINDS 30 TO 45 KT.
SEAS 4 TO 7 M. AND WITHIN 180 NM NE...780 NM SE...AND 660 NM SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 4 TO 6 M. ELSEWHERE WITHIN 840
NM SE AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW MOVED INLAND. CONDITIONS DESCRIBED WITH
LOW 51N140W BELOW.

...STORM WARNING...
.18 HOUR FORECAST NEW LOW 49N144W 997 MB. WITHIN 540 NM SE AND
SW QUADRANTS AREA OF S TO SW WINDS 25 TO 35 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW 51N140W 994 MB. WITHIN 600 NM SE AND 660
NM SW QUADRANTS AREA OF S TO SW WINDS 25 TO 35 KT. SEAS 3 TO 5
M. ELSEWHERE...EXCEPT AS DESCRIBED WITH LOW 48N157W
BELOW...WITHIN 420 NM NE...720 NM SE...AND 1200 NM SW QUADRANTS
WINDS 20 TO 30 KT. SEAS 3 TO 6 M.
.36 HOUR FORECAST LOW 54N134W 984 MB. WITHIN 60 NM E OF A LINE
FROM 54N132W TO 51N129W AREA OF SE WINDS 40 TO 50 KT. SEAS 3 TO
6 M.
.48 HOUR FORECAST LOW DISSIPATED WITH NEW LOW 52N137W 1003 MB.
WITHIN 120 NM EITHER SIDE OF A LINE FROM 48N141W TO 52N129W AREA
OF SW TO W WINDS 20 TO 30 KT. SEAS 3 TO 4.5 M

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 47N165W 979 MB MOVING SE 15 KT AND
WILL TURN NE AFTER 12 HOURS. WITHIN 240 NM S SEMICIRCLE WINDS 35
TO 45 KT. SEAS 6 TO 9 M. ALSO WITHIN 300 NM NW...420 NM NE...480
NM SE...AND 900 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 5 TO 8
M. AND WITHIN 480 NM NW...600 NM SE...AND 1080 NM SW QUADRANTS
WINDS 20 TO 30 KT. SEAS 4 TO 7 M.
.24 HOUR FORECAST LOW 48N157W 988 MB. FROM 41N TO 52N BETWEEN
151W AND 164W WINDS 25 TO 40 KT. SEAS 4 TO 7 M. ALSO FROM 38N TO
55N BETWEEN 148W AND 173W WINDS 20 TO 30 KT. SEAS 4 TO 6 M.
ELSEWHERE BETWEEN 780 NM AND 1440 NM SW QUADRANT AREA OF NW TO N
WINDS 20 TO 30 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST LOW 46N153W 1008 MB. WITHIN AN AREA BOUNDED BY
A LINE FROM 33N161W TO 41N163W TO 49N149W TO 45N168W TO 32N173W
TO 31N164W TO 33N161W WINDS 20 TO 30 KT. SEAS 3 TO 5 M.

...GALE WARNING...
.LOW NW OF AREA 52N155E 997 MB MOVING NW 15 KT. WITHIN 420 NM SE
QUADRANT AREA OF SE TO S WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW AND CONDITIONS MOVED WELL NW OF AREA.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 57N143W 985 MB MOVING SW 05 KT AND
WILL TURN SE AFTER 12 HOURS. WITHIN 180 NM N OF A LINE FROM
53N158W TO 58N145W TO 56N139W TO 57N136W WINDS 25 TO 40 KT. SEAS
3 TO 5 M.
.24 HOUR FORECAST LOW 57N143W 998 MB. NE OF A LINE FROM 59N149W
TO LOW TO 55N135W WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.

...GALE WARNING...
.12 HOUR FORECAST LOW W OF AREA 49N156E 989 MB. WITHIN 240 NM E
SEMICIRCLE AREA OF SE TO S WINDS 35 TO 45 KT. SEAS 4 TO 6 M.
ELSEWHERE WITHIN 420 NM NE AND 360 NM SE QUADRANTS WINDS 25 TO
40 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW NW OF AREA 54N160E 992 MB. WITHIN 420 NM E
AND 360 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED WELL NW OF
AREA.

...GALE WARNING...
.30 HOUR FORECAST LOW 40N162E 1003 MB. FROM 35N TO 44N W OF 167E
WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST LOW NW OF AREA 57N170E 1002 MB. FROM 44N TO
60N BETWEEN 179W AND 169E AREA OF SE TO S WINDS 25 TO 40 KT.
SEAS 3 TO 6 M.

...GALE WARNING...
.42 HOUR FORECAST NEW LOW 31N159W 1008 MB. WITHIN 120 NM W
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 33N154W 1007 MB. WITHIN AN AREA BOUNDED BY
A LINE FROM 47N124W TO 43N139W TO 30N159W TO 30N143W TO 38N141W
TO 44N124W TO 47N124W WINDS 20 TO 30 KT. SEAS 3 TO 5 M.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 56N152W 1007 MB. WITHIN 90 NM NW OF A
LINE FROM 58N150W TO 56N155W TO 53N166W AREA OF NW WINDS 25 TO
35 KT. SEAS TO 4 M.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY WITHIN 90 NM NE OF A LINE FROM
59N169W TO 58N165W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY
NE OF A LINE FROM 60N179W TO 56N169W TO 56N160W...AND N OF A
LINE FROM 59N151W TO 59N141W TO 57N135W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 60N179W TO 57N159W...AND NE OF A LINE FROM 60N150W TO
55N133W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 61N177W TO 56N165W TO 56N160W...AND N OF A LINE FROM
58N152W TO 60N146W TO 55N133W.

.SYNOPSIS AND FORECAST.

.FROM THE ALEUTIAN ISLANDS N TO 62N BETWEEN 162W AND 179E AREA
OF N TO NE WINDS 20 TO 30 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 49N TO 52N
BETWEEN 165E AND 162E...WITHIN 60 NM EITHER SIDE OF A LINE FROM
45N168W TO 48N166W TO 49N162W...WITHIN 90 NM OF 52N162W AND
60N149W...WITHIN 90 NM EITHER SIDE OF A LINE FROM 53N142W TO
56N138W...AND E OF A LINE FROM 56N135W TO 45N124W.
.24 HOUR FORECAST DENSE FOG WITHIN 90 NM OF 54N169E...WITHIN 90
NM EITHER SIDE OF A LINE FROM 45N141W TO 46N132W...AND NE OF A
LINE FROM 57N138W TO 54N131W.
.48 HOUR FORECAST DENSE FOG FROM 39N TO 55N BETWEEN 171E AND
165E...AND E OF A LINE FROM 50N127W TO 47N125W.

.FORECASTER FIGURSKEY. 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 1800 UTC MON DEC 8.
24 HOUR FORECAST VALID 1800 UTC TUE DEC  9.
48 HOUR FORECAST VALID 1800 UTC WED DEC 10.

.WARNINGS.

...GALE WARNING...
.WITHIN 15N94W TO 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W
TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO
30 KT. SEAS BUILDING TO 2.5 M.
.06 HOUR FORECAST WITHIN 16N94.5W TO 16.5N95W TO 16N95.5W TO
15.5N95.5W TO 15N95W TO 15.5N94.5W TO 16N94.5W...INCLUDING THE
GULF OF TEHUANTEPEC... N WINDS 30 TO 35 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 14N95W
TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0
M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
15N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 30 TO 35 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 16N93W TO 16N95W TO 12N100W TO 11N100W TO 10N98W
TO 12N95W TO 16N93W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0
M.
.36 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 14N98W TO 13N97W TO
14N95W TO 14N94W TO 16N95W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE WITHIN 14N95W TO 15N95W TO 15N96W TO 12N101W TO 11N101W
TO 11N98W TO 14N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE
SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.SYNOPSIS AND FORECAST.

.WITHIN 14N128W TO 21N134W TO 21N140W TO 05N140W TO 05N132W TO
14N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 11N133W TO 13N135W TO 14N140W TO
07N140W TO 07N133W TO 11N133W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 28N111W TO 28N112W TO 27N112W TO 24N110W TO 25N110W TO
26N110W TO 28N111W...INCLUDING THE GULF OF CALIFORNIA... NW
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 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 2000 UTC MON DEC 8...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N86W TO 07N97W TO 12N109W TO 12N118W. ITCZ
FROM 12N118W TO 07N128W TO 7N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 12N TO 18N BETWEEN 108W AND 116W...AND FROM 05N TO
10N BETWEEN 120W AND 140W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 1800 UTC DEC 08 2025.
24 HOUR FORECAST VALID 1800 UTC DEC 09 2025.
48 HOUR FORECAST VALID 1800 UTC DEC 10 2025.

.WARNINGS.

...GALE WARNING...
.LOW NEAR 25N161E 1009 MB MOVING N 10 KT. FRONT FROM 30N168W TO
25N178W TO 24N171E TO 26N163E TO LOW TO 24N160E. FRONT MOVING SE E
OF 177W...NEARLY STATIONARY BETWEEN 164E AND 179E...AND MOVING N
10 KT ELSEWHERE. WINDS 30 TO 35 KT WITHIN 210 NM N OF FRONT. WINDS
20 TO 30 KT ELSEWHERE N OF FRONT AND LOW. ISOLATED MODERATE TSTMS
WITHIN 210 NM OF FRONT E OF 179W.
.24 HOUR FORECAST LOW NEAR 30N160E 1002 MB. FRONT FROM 30N162W TO
22N174W TO 21N174E TO 29N165E TO 30N163E TO LOW TO 25N160E. WINDS
30
TO 35 KT N OF LINE 30N163E 24N171E 30N171E. WINDS 20 TO 30 KT
ELSEWHERE N OF LINE 30N163W 22N174W 22N173E 25N167E 25N160E.
.48 HOUR FORECAST LOW MOVED N OF AREA. FRONT 30N155W 24N159W
21N163W 20N169W...AND 28N176E 30N173E 24N168E 20N164E 18N160E.
WINDS 30 TO 35 KT N OF LINE 30N173E 27N174E 27N176E 30N177E. WINDS
20 TO 30 KT ELSEWHERE N OF 25N W OF 178E.

.SYNOPSIS AND FORECAST.

.TROUGH 23N171E 18N166E 09N162E MOVING W 10 KT.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 2.5 TO 4.5 M N OF LINE 30N167W 23N170E 22N160E. SEAS 2.5 TO
3 M S OF LINE 00NS176E 06N171E 15N175E 17N168W 11N157W 00N155W...
AND FROM 12N TO 08N E OF 151W.
.24 HOUR FORECAST SEAS 4 TO 5 M N OF LINE 30N161W 24N173W 23N173E
29N160E. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N153W 24N166W
22N179W 24N160E.
.48 HOUR FORECAST SEAS 4 TO 6 M N OF LINE 30N157W 23N178W
30N160E. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N145W 21N167W
16N177E 25N160E.

.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 07N140W 07N168W 07N170E. SCATTERED MODERATE TSTMS FROM 12N
TO 08N BETWEEN 177E AND 177W. ISOLATED MODERATE TSTMS ELSEWHERE
WITHIN 180 NM OF ITCZ E OF 175E.

.ISOLATED MODERATE TO STRONG TSTMS S OF 04N W OF 170E.

$$

.FORECASTER TROTTER. HONOLULU HI.