East and Central North Pacific High Seas Forecast

FZPN02 KWBC 061725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SAT DEC 06 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 06. 
24 HOUR FORECAST VALID 1200 UTC DEC 07.
48 HOUR FORECAST VALID 1200 UTC DEC 08.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 48N168E 983 MB MOVING SE 20 KT.
WITHIN 120 NM S AND W SEMICIRCLES WINDS 35 TO 50 KT. SEAS 4 TO
6.5 M. ALSO FROM 32N TO 51N W OF 180W WINDS 25 TO 35 KT. SEAS 3
TO 5.5 M. ELSEWHERE FROM 44N TO 55N BETWEEN 168E AND 180W WINDS
TO 25 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS DESCRIBED WITH LOW 46N178E
BELOW.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 58N148W 979 MB MOVING SW 10 KT.
FROM 42N TO 60N E OF 170W...EXCEPT WHERE DESCRIBED BY LOW 49N162W
BELOW...WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5 M...HIGHEST NEAR
55N138W AND 48N127W. 
.12 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 58N148W 970 MB.
BETWEEN 360 NM AND 660 NM S QUADRANT...AND WITHIN THE BERING SEA
E OF 167W WINDS 35 TO 50 KT. SEAS 4 TO 6 M. 
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 54N150W 974 MB
AND SECOND CENTER 57N141W 975 MB. BETWEEN 180 NM AND 660 NM S AND
SE QUADRANTS OF FIRST CENTER...WITHIN 180 NM N AND E OF A FRONT
FROM FIRST CENTER TO 59N146W TO SECOND CENTER TO 53N133W TO
48N132W...AND WITHIN THE BERING SEA BETWEEN 162W AND 175W WINDS
30 TO 45 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR 48N147W. ELSEWHERE N
OF 43N BETWEEN 130W AND 162W...AND WITHIN THE BERING SEA BETWEEN
160W AND 175W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 56N148W 982
MB. WITHIN 480 NM NE AND 300 NM NW QUADRANTS WINDS 25 TO 35 KT.
SEAS 3 TO 4.5 M...HIGHEST CONDITIONS NEAR 58N139W. 

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 41N178W 1004 MB MOVING N 15 KT AND
RAPIDLY INTENSIFYING. WITHIN 300 NM E QUADRANT AND 420 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.18 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 47N176W 978
MB. WITHIN 120 NM S AND SW QUADRANTS WINDS 40 TO 50 KT. SEAS 4 TO
6.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 47N176W 978 MB
AND SECOND CENTER 46N178E 989 MB. WITHIN 120 NM N AND 180 NM S
SEMICIRCLES OF FIRST CENTER...AND WITHIN 420 NM S AND SW
QUADRANTS OF SECOND CENTER WINDS 40 TO 55 KT. SEAS 6 TO 9
M...HIGHEST S OF SECOND CENTER. ELSEWHERE FROM 34N TO 54N BETWEEN
157W AND 164E WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M.
.48 HOUR FORECAST LOW 45N171W 978 MB. WITHIN 540 NM SE...720 NM
SW...AND 600 NM NW QUADRANTS...AND WITHIN 180 NM EITHER SIDE OF A
LINE FROM 53N180W TO 58N172W TO 60N168W WINDS 30 TO 45 KT. SEAS
3.5 TO 8.5 M...HIGHEST CONDITIONS S OF CENTER. ELSEWHERE N OF 32N
BETWEEN 157W AND 170E...EXCEPT FROM 52N TO 59N BETWEEN 158W AND
165W...WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.

...STORM WARNING...
.36 HOUR FORECAST NEW COMPLEX LOW WITH MEAN CENTER NEAR 49N157W
981 MB. WITHIN 540 NM S SEMICIRCLE WINDS 25 TO 40 KT. SEAS 3 TO
5.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 52N145W 980
MB. WITHIN 240 NM S SEMICIRCLE WINDS 35 TO 50 KT. SEAS 4 TO 6.5
M. ELSEWHERE WITHIN 480 NM NE QUADRANT...AND 37N TO 53N BETWEEN
126W AND 157W WINDS 25 TO 35 KT. SEAS 3 TO 6 M IN MIXED SWELL.

...GALE WARNING...
.LOW 49N162W 997 MB MOVING NE 40 KT THEN TURNING N AFTER 12
HOURS. WITHIN 120 NM SW SEMICIRCLE WINDS 30 TO 45 KT. SEAS 4 TO
5.5 M. ELSEWHERE WITHIN 480 NM SE AND 360 NM SW QUADRANTS WINDS
20 TO 30 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS DESCRIBED WITH LOW 57N141W
ABOVE.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW SW OF AREA NEAR 27N157E 1009 MB. WITHIN
720 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.36 HOUR FORECAST LOW S OF AREA NEAR 27N160E 1010 MB. WITHIN 660
NM NE QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. 
.48 HOUR FORECAST LOW AND CONDITIONS S OF AREA.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE FROM 57N158W TO
60N170W TO 62N170W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY NE
OF A LINE FROM 54N154W TO 61N177W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY WITHIN THE
BERING SEA N OF 57N E OF 171W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY NE OF A LINE FROM 53N157W TO 55N170W TO 61N178W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY WITHIN THE
BERING SEA N OF 58N E OF 171W. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY WITHIN THE BERING SEA N OF 56N E OF 178W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 56N E OF
150W...WITHIN 180 NM EITHER SIDE OF A LINE FROM 57N149W TO
47N160W...AND WITHIN 240 NM EITHER SIDE OF A LINE FROM 52N165E TO
40N175W. 
.24 HOUR FORECAST DENSE FOG N OF 49N BETWEEN 135W AND 160W...FROM
43N TO 50N BETWEEN 175W AND 170E...N OF 48N BETWEEN 174E AND
168E...AND FROM 48N TO 51N BETWEEN 150W AND 175W.
.48 HOUR FORECAST DENSE FOG N OF 50N BETWEEN 131W AND 156W...FROM
44N TO 51N E OF 132W...AND WITHIN 240 NM N AND W OF A LINE FROM
43N174W TO 47N171W TO 49N160W TO 49N146W.

.FORECASTER ANDERSON. 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 SAT DEC 06.
24 HOUR FORECAST VALID 1200 UTC SUN DEC 07.
48 HOUR FORECAST VALID 1200 UTC MON DEC 08.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 19N TO 28N AND W OF A LINE FROM 28N136W TO 22N132W TO
19N140W 
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED NE AND NW SWELL. 
FROM 07N TO 09N W OF 137W WINDS 20 KT OR LESS. SEAS 2.5 M IN
MIXED 
NE AND NW SWELL.
.24 HOUR FORECAST FROM 19N TO 21N W OF 134W WINDS 20 KT OR LESS. 
SEAS 2.5 M IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 16N TO 19N W OF 133W WINDS 20 KT OR LESS. 
SEAS 2.5 M IN MIXED NE AND NW SWELL.

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

CONVECTION VALID AT 1500 UTC SAT DEC 6...

.TROUGH FROM 18N104W TO 12N107W...SCATTERED MODERATE ISOLATED 
STRONG FROM 14N TO 19N BETWEEN 102W AND 107W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N85W TO 07N95W TO 12N107W TO 
08N122W. THE ITCZ CONTINUES FROM 08N122W TO BEYOND 08N140W. 
SCATTERED MODERATE CONVECTION IS NOTED FROM 08N TO 11N BETWEEN
100W 
AND 113W...AND FROM 08N TO 10N BETWEEN 113W AND 121W. SIMILAR 
CONVECTIVE ACTIVITY IS OCCURRING FROM 06N TO 08N W OF 135W.

.FORECASTER GR. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 1200 UTC DEC 06 2025.
24 HOUR FORECAST VALID 1200 UTC DEC 07 2025.
48 HOUR FORECAST VALID 1200 UTC DEC 08 2025.

.WARNINGS.


...GALE WARNING...

.FRONT 30N168E 27N160E MOVING E 15 KT.
.24 HOUR FORECAST FRONT 30N176E 28N166E 28N160E. WINDS 20 TO 25
KT AND SEAS 2.5 TO 3 M N OF FRONT.
.48 HOUR FORECAST FRONT 30N175W 27N175E 25N160E. WINDS 30 TO 40
KT AND SEAS 3 TO 5 M WITHIN 90 NM N OF FRONT. WINDS 20 TO 30 KT
AND SEAS 2.5 TO 5 M ELSEWHERE N OF FRONT.

.SYNOPSIS AND FORECAST.

.TROUGH 30N159W 25N163W 21N167W MOVING SLOWLY WNW. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF TROUGH N OF 23N.
.12 HOUR FORECAST TROUGH ABSORBED INTO TROUGH BELOW.

.TROUGH 30N162W 23N168W 17N177W MOVING SLOWLY WNW. ISOLATED
MODERATE TSTMS WITHIN 90 NM S OF 22N.
.24 HOUR FORECAST TROUGH 30N163W 25N175W.
.48 HOUR FORECAST TROUGH 30N162W 27N164W.

.TROUGH 14N171W 12N176W 07N180W MOVING W 20 KT. SCATTERED MODERATE
TSTMS WITHIN 180 NM W OF TROUGH N OF 12N.
.24 HOUR FORECAST TROUGH 17N179E 11N173E.
.48 HOUR FORECAST TROUGH 25N177E 23N173E 19N168E.

.WINDS 20 TO 30 KT BETWEEN TWO LINES 20N172W 09N166E AND 25N179W
AND 18N164E.
.24 HOUR FORECAST WINDS 20 TO 30 KT FROM 08N TO 12N BETWEEN 173W
AND 178W.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

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

.SEAS 2.5 TO 4 M N OF A LINE FROM 17N140W 05N173W 08N160E EXCEPT
N OF A LINE FROM 30N165W 25N172E.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 05N W OF 175W.
.48 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.

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

.MODERATE ISOLATED TSTMS WITHIN 90 NM EITHER SIDE OF A LINE FROM
05N177E 08N164E.

.ITCZ 07N140W 08N153W 11N172W.


$$

.FORECASTER BLOOD. HONOLULU HI.