138
FZPN02 KWBC 052325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC FRI DEC 05 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 05.
24 HOUR FORECAST VALID 1800 UTC DEC 06.
48 HOUR FORECAST VALID 1800 UTC DEC 07.

.WARNINGS.

...STORM WARNING...
.LOW 53N133W 995 MB MOVING SE 20 KT. WITHIN 300 NM S AND 180 NM
SW QUADRANTS WINDS 35 TO 50 KT. SEAS 3.5 TO 7 M. ELSEWHERE FROM
41N TO 55N E OF 141W WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...STORM WARNING...
.LOW 43N164E 997 MB MOVING NE 15 KT. WITHIN 240 NM SE AND E
QUADRANTS WINDS 30 TO 45 KT. SEAS 5 TO 7 M. ELSEWHERE FROM 31N TO
45N W OF 170E WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
.24 HOUR FORECAST LOW 47N170E 981 MB. WITHIN 240 NM SW SEMICIRCLE
AND 180 NM N QUADRANT WINDS 40 TO 55 KT. SEAS 4.5 TO 9 M.
ELSEWHERE S OF 53N W OF 180W WINDS 25 TO 40 KT. SEAS 3.5 TO 7 M.
.48 HOUR FORECAST LOW 44N180W 988 MB. WITHIN 360 NM S AND SE AND
480 NM SW QUADRANTS WINDS 40 TO 50 KT. SEAS 5 TO 10 M.
ELSEWHERE...EXCEPT WHERE DESCRIBED BELOW WITH LOW 47N173W...FROM
34N TO 56N BETWEEN 177W AND 166E WINDS 25 TO 40 KT. SEAS 4 TO 8
M...EXCEPT N OF 50N SEAS TO 4 M.

...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 49N176W 1001 MB MOVING E 20 KT.
FROM 41N TO 53N BETWEEN 170W AND 172E WINDS 25 TO 35 KT. SEAS 2.5
TO 6 M IN MIXED SWELL...HIGHEST W. ELSEWHERE WITHIN 240 NM SE OF
A FRONT FROM 42N174W TO 35N175E TO 30N164E WINDS 20 TO 30 KT.
SEAS TO 4 M IN MIXED SWELL.
.24 HOUR FORECAST COMPLEX LOW ABSORBED BY NEW COMPLEX LOW WITH
MAIN CENTER 50N152W 992 MB. WITHIN 240 NM S AND 360 NM SW
QUADRANTS WINDS 35 TO 50 KT. SEAS 3 TO 5.5 M. ELSEWHERE
CONDITIONS DESCRIBED BELOW WITH LOW 58N147W.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
56N147W DESCRIBED BELOW.

...STORM WARNING...
.LOW 60N146W 1000 MB MOVING S 05 KT AND RAPIDLY INTENSIFYING.
WINDS LESS THAN 25 KT. SEAS LESS THAN 4 M.
.12 HOUR FORECAST LOW 59N148W 987 MB. WITHIN 420 NM W QUADRANT
AND FROM 56N TO 60N BETWEEN ALASKA COAST AND 170W WINDS 25 TO 35
KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 58N147W 974 MB. WITHIN 540 NM W AND 240 NM
N QUADRANTS WINDS 35 TO 50 KT. SEAS 2.5 TO 5 M. ELSEWHERE N OF
41N BETWEEN 127W AND 170W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 56N147W 973
MB. WITHIN 360 NM NW QUADRANT WINDS 35 TO 50 KT. SEAS 3 TO 4.5 M.
ELSEWHERE N OF A LINE FROM 39N153W TO 49N126W WINDS 25 TO 40 KT.
SEAS 2.5 TO 6.5 M...HIGHEST NEAR 50N143W.

...STORM WARNING...
.12 HOUR FORECAST NEW LOW TO FORM NEAR 38N171E 1007 MB. S OF 40N
BETWEEN 173W AND 169E WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 42N178W 996 MB. WITHIN 240 NM W SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 3 TO 5.5 M. ELSEWHERE S OF A LINE FROM
49N180W TO 43N167W WINDS 25 TO 40 KT. SEAS 2.5 TO 5.5. M.
.48 HOUR FORECAST LOW 47N173W 975 MB. WITHIN 240 NM N SEMICIRCLE
AND N OF 59N BETWEEN 162W AND 167W WINDS 35 TO 50 KT. SEAS 3 TO 6
M. ELSEWHERE BETWEEN 162W AND A LINE FROM 63N169W TO 57N177W TO
35N177W AND FROM 35N TO 49N BETWEEN 153W AND 162W WINDS 25 TO 40
KT. SEAS 2.5 TO 8 M...HIGHEST NEAR 46N169W.

...GALE WARNING...
.LOW 55N149W 1000 MB MOVING NE 15 KT. FROM 45N TO 55N BETWEEN
141W AND 161W WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
58N147W DESCRIBED ABOVE.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF ALASKA AND WITHIN
120 NM W OF ALASKA COAST FROM 57N TO 61N. ELSEWHERE LIGHT TO
MODERATE FREEZING SPRAY NE OF A LINE FROM 61N178W TO 57N159W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NE OF A LINE
FROM 63N174W TO 56N160W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY NE AND N OF A LINE FROM 61N177W TO 55N163W TO 55N155W TO
60N144W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 57N
BETWEEN 156W AND 170W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF A LINE FROM 61N178W TO 53N166W TO 55N156W TO 60N148W
TO 58N136W.

.SYNOPSIS AND FORECAST.

.EXCEPT WHERE DESCRIBED IN WARNINGS SECTION ABOVE...N OF 30N W OF
176W WINDS LESS THAN 25 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR
50N166E.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM NE AND
N OF A LINE FROM 56N172E TO 51N176E TO 49N175W AND WITHIN 60 NM
OF 55N149W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 52N BETWEEN 178E AND
167E...FROM 41N TO 43N BETWEEN 174W AND 178W...WITHIN 60 NM NW OF
A LINE FROM 49N154W TO 51N148W...AND N OF 58N BETWEEN 150W AND
138W..
.48 HOUR FORECAST DENSE FOG FROM 45N TO 49N BETWEEN 151W AND 171E
AND FROM 56N TO 60N BETWEEN 139W AND 152W.

.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 1800 UTC FRI DEC 5.
24 HOUR FORECAST VALID 1800 UTC SAT DEC  6.
48 HOUR FORECAST VALID 1800 UTC SUN DEC  7.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 21N135W TO 25N128W TO 30N140W TO 08N140W TO 08N134W TO
21N135W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED NE AND NW
SWELL.
.24 HOUR FORECAST WITHIN 22N130W TO 29N135W TO 29N140W TO
07N140W TO 09N137W TO 17N136W TO 22N130W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WITHIN 22N136W TO 23N140W TO 08N140W TO
10N131W TO 14N134W TO 16N130W TO 22N136W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NW SWELL.

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

CONVECTION VALID AT 1800 UTC FRI DEC 5...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 08.5N117W. ITCZ FROM 08.5N117W TO
BEYOND 06N140W. SCATTERED MODERATE FROM 05N TO 09N BETWEEN 80W
AND 92W...11N TO 19N BETWEEN 102W AND 111W...AND 06N TO 08N
BETWEEN 131W AND 134W.

.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 1800 UTC DEC 05 2025.
24 HOUR FORECAST VALID 1800 UTC DEC 06 2025.
48 HOUR FORECAST VALID 1800 UTC DEC 07 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N160W 26N164W 17N173W 11N176W MOVING W SLOWLY. SCATTERED
MODERATE TSTMS WITHIN 210 NM OF TROUGH S OF 18N.
.24 HOUR FORECAST TROUGH 30N162W 22N169W 14N177E.
.48 HOUR FORECAST TROUGH 27N174W 20N172E 07N167E.

.TROUGH 30N163E 28N160E MOVING E 10 KT ALONG 30N...AND NEARLY
STATIONARY ELSEWHERE.
.24 HOUR FORECAST TROUGH 30N171E 27N160E.
.48 HOUR FORECAST TROUGH 30N177E 27N167E 27N160E. NE WINDS 20 TO
30 KT N OF TROUGH.

.TROUGH 09N165W 02N170W MOVING W 10 KT. SCATTERED MODERATE TSTMS
WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 11N172W 02N178W. E WINDS 20 TO 30 KT FROM
08N TO 15N BETWEEN 166W AND 173W.
.48 HOUR FORECAST TROUGH 11N174W 02N178W. E WINDS 20 TO 30 KT FROM
08N TO 11N BETWEEN 171W AND 177W.

.TROUGH 03N160E 04N166E 02N174E MOVING SW SLOWLY. SCATTERED
MODERATE TSTMS WITHIN 210 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 01N160E 00N174E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.NE TO E WINDS 20 TO 30 KT BETWEEN A LINE 30N160W 10N174W...AND
30N169W 20N160E. E WINDS 20 TO 25 KT FROM 15N TO 22N BETWEEN 145W
AND 155W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT BETWEEN A LINE 22N173W
07N173E...AND 22N180E 15N160E.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

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

.SEAS 4 TO 5 M FROM 13N TO 22N BETWEEN 171W AND 175E...AND NW OF
LINE 30N164E 27N160E. SEAS MAINLY 2.5 TO 4 M ELSEWHERE N OF A LINE
22N140W 05N174E 10N160E.
.24 HOUR FORECAST SEAS 4 TO 5 M FROM 12N TO 20N BETWEEN 174W AND
168E. SEAS MAINLY 2.5 TO 4 M ELSEWHERE N OF 06N.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF 26N W OF 169E. SEAS MAINLY
2.5 TO 4 M ELSEWHERE...EXCEPT SEAS 2.5 M OR LOWER N OF 20N E OF
167W.

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

.ITCZ 06N140W 06N148W 03N158W 03N164W. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF ITCZ.

$$

.FORECASTER AHUE. HONOLULU HI.