973
FZPN01 KWBC 031604
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED DEC 03 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 03.
24 HOUR FORECAST VALID 1200 UTC DEC 04.
48 HOUR FORECAST VALID 1200 UTC DEC 05.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW W OF AREA 39N149E 990 MB MOVING NE 35 KT RAPIDLY
INTENSIFYING AND TURNING N AFTER 12 HOURS. S OF 40N W OF 167E
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.06 HOUR FORECAST LOW W OF AREA 43N153E 978 MB. FROM 30N TO 45N
BETWEEN 164E AND 160E WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.12 HOUR FORECAST LOW W OF AREA 47N155E 962 MB. FROM 38N TO 51N
BETWEEN 166E AND 160E WINDS 40 TO 55 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW NW OF AREA 51N157E 949 MB. FROM 48N TO 55N
BETWEEN 173E AND 163E WINDS 50 TO 65 KT. SEAS 7.5 TO 10 M. ALSO
WITHIN 360 NM SE QUADRANT AND WITHIN 360 NM N AND E OF A FRONT
FROM 51N163E TO 46N168E TO 36N167E WINDS 35 TO 50 KT. SEAS 4 TO 8
M. ELSEWHERE S OF 58N W OF 177E WINDS 25 TO 35 KT. SEAS 3 TO 5.5
M.
.48 HOUR FORECAST LOW WELL W OF AREA AND NEW COMPLEX LOW WITH
MEAN CENTER TO FORM NEAR 51N178E 1000 MB. WITHIN 780 NM SE AND
600 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M. ELSEWHERE
35N TO 59N BETWEEN 172W AND 170E WINDS TO 25 KT. SEAS 3 TO 5 M.

...GALE WARNING...
.LOW NW OF AREA 51N158E 1006 MB MOVING N 10 KT. N OF 40N W OF
170E WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 51N157E
ABOVE.

...GALE WARNING...
.COMPLEX LOW WITH MEAN CENTER 52N168W 980 MB MOVING E 10 KT.
BETWEEN 180 NM AND 600 NM W AND NW QUADRANTS WINDS 35 TO 45 KT.
SEAS 4 TO 9 M...HIGHEST NEAR 54N176W. ALSO WITHIN 480 NM SE
SEMICIRCLE...BETWEEN 240 NM AND 840 NM N QUADRANT...AND S OF 63N
BETWEEN 167W AND 174E WINDS 25 TO 35 KT. SEAS 3 TO 7.5...HIGHEST
S OF CENTER AND NEAR 41N177W. ELSEWHERE FROM 46N TO 56N BETWEEN
148W AND 167E WINDS TO 25 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST COMBINED LOW 52N163W 999 MB. BETWEEN 180 NM AND
540 NM NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
ELSEWHERE S OF THE ALEUTIAN ISLANDS BETWEEN 160W AND 176E...AND
WITHIN THE BERING SEA S OF 60N BETWEEN 177E AND 165W WINDS TO 25
KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 37N174W.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER NEAR 53N162W 1002
MB AND NEW SECOND CENTER NEAR 56N150W 1005 MB. WITHIN THE BERING
SEA S OF 61N E OF 180W...AND WITHIN 120 NM OF SECOND CENTER WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.LOW 37N153W 1011 MB MOVING NE 20 KT. WITHIN 420 NM SE SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.18 HOUR FORECAST LOW 45N149W 1008 MB. WITHIN 360 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 48N148W 1006 MB. WITHIN 360 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 51N139W 1008
MB. FROM 43N TO 54N E OF 140W WINDS 25 TO 35 KT. SEAS 2.5 TO 5
M.

...GALE WARNING...
.48 HOUR FORECAST LOW JUST W OF AREA NEAR 39N158E 1004 MB. WITHIN
360 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE CONDITIONS DESCRIBED WITH LOW 53N161E ABOVE.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW NW OF AREA NEAR 53N161E 990 MB. WITHIN
420 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 4 TO 6.5 M.
ELSEWHERE S OF 55N W OF 170E...EXCEPT WHERE DESCRIBED WITH LOW
39N158E ABOVE...WINDS TO 25 KT. SEAS 3 TO 6 M.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N AND NE OF A LINE FROM 59N167W
TO 62N174W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 58N W
OF ALASKA.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 59N E OF
168W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY NE OF A LINE
FROM 58N166W TO 61N176W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY E OF A LINE
FROM 59N165W TO 62N170W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N AND NE OF A LINE FROM 58N158W TO 61N176W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 480 NM SE OF
A LINE FROM 57N140W TO 52N142W TO 40N154W...FROM 47N TO 61N
BETWEEN 162W AND 176W...AND N OF 42N W OF 168E.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 53N BETWEEN 127W AND
155W...AND WITHIN 180 NM EITHER SIDE OF A LINE FROM 59N161W AND
50N171W.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 46N BETWEEN 132W AND
151W...WITHIN 180 NM EITHER SIDE OF A LINE FROM 57N150W TO
49N127W...WITHIN 180 NM SW OF A LINE FROM 57N174E TO
48N173W...AND FROM 39N TO 45N W OF 167E.

.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 WED DEC 3.
24 HOUR FORECAST VALID 1200 UTC THU DEC  4.
48 HOUR FORECAST VALID 1200 UTC FRI DEC  5.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.09 HOUR FORECAST CONDITIONS IMPROVE.

.WITHIN 21N118W TO 21N128W TO 30N124W TO 30N140W TO 08N140W TO
07N134W TO 21N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.24 HOUR FORECAST WITHIN 05N123W TO 05N123W TO 04N125W TO
03N125W TO 03N124W TO 03N123W TO 05N123W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE.

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

CONVECTION VALID AT 1500 UTC WED DEC 3...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N85W TO 07N100W. ITCZ FROM 07N100W TO
12N119W...THEN RESUMES FROM 07N133W TO BEYOND 07N140W. A SURFACE
TROUGH BREAKS THE ITCZ...FROM 19N118W TO 08N130W. SCATTERED
MODERATE IN THE VICINITY OF TROUGH BETWEEN 109W AND 123W...FROM
07N TO 10N E OF 104W...AND FROM 06N TO 11N W OF 130W.

.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.

$$