275
FZPN01 KWBC 042136
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC THU DEC 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 04.
24 HOUR FORECAST VALID 1800 UTC DEC 05.
48 HOUR FORECAST VALID 1800 UTC DEC 06.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW W OF AREA 55N155E 949 MB MOVING NW 15 KT. FRONT EXTENDS FROM
53N167E TO 50N171E TO 42N172E TO 37N170E TO 30N163E. WITHIN AN
AREA BOUNDED BY A LINE FROM 56N173E TO 50N174E TO 40N174E TO
37N170E TO 49N170E TO 53N167E WINDS 50 TO 65 KT. SEAS 5.5 TO 11
M. ELSEWHERE N OF 39N W OF THE FRONT...N OF 45N WITHIN 360 NM NE
AND E OF THE FRONT...AND FROM 36N TO 45N WITHIN 150 NM E AND SE
OF THE FRONT WINDS 35 TO 50 KT. SEAS 5 TO 10 M. OTHERWISE W OF A
LINE FROM 59N179E TO 40N178E TO 30N170E WINDS 25 TO 35 KT. SEAS 3
TO 6.5 M.
.24 HOUR FORECAST LOW NW OF AREA 60N145E 973 MB. CONDITIONS WELL
NW OF AREA.

...STORM WARNING...
.LOW 48N148W 1012 MB MOVING NE 25 KT. WITHIN 480 NM SE AND S
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 4 M.
.06 HOUR FORECAST LOW 50N146W 1009 MB. FROM 43N TO 50N BETWEEN
135W AND 150W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.18 HOUR FORECAST LOW 52N140W 999 MB. WITHIN 180 NM S AND SW
QUADRANTS WINDS 40 TO 50 KT. SEAS 3.5 TO 6.5 M.
.24 HOUR FORECAST LOW 52N134W 997 MB. WITHIN 360 NM S QUADRANT
WINDS 40 TO 50 KT. SEAS 3.5 TO 7 M. ELSEWHERE FROM 44N TO 55N
BETWEEN 126W AND 142W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS DESCRIBED
BELOW WITH LOW 59N150W.

...STORM WARNING...
.LOW 46N155W 1008 MB MOVING NE 25 KT. FROM 43N TO 47N BETWEEN
150W AND 156W WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST INTENSIFYING LOW 55N151W 998 MB. FROM 46N TO
54N  BETWEEN 142W AND 161W WINDS 20 TO 30 KT. SEAS TO 4 M.
.30 HOUR FORECAST LOW 57N148W 990 MB. WITHIN 480 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS TO 4.5 M.
.48 HOUR FORECAST LOW 59N150W 976 MB. BETWEEN 240 NM AND 600 NM W
QUADRANT...AND FROM 43N TO 51N BETWEEN 146W AND 160W WINDS 35 TO
50 KT. SEAS 3 TO 6.5 M...HIGHEST NEAR 46N159W. ELSEWHERE N OF A
LINE FROM 50N130W TO 44N140W TO 40N157W TO 50N171W WINDS 25 TO 35
KT. SEAS 2.5 TO 5 M.

...STORM WARNING...
.24 HOUR FORECAST LOW 43N163E 994 MB. FROM 38N TO 44N BETWEEN
162E AND 167E WINDS 35 TO 45 KT. SEAS 4 TO 7.5 M. ELSEWHERE FROM
32N TO 45N BETWEEN 160E AND 169E WINDS 25 TO 35 KT. SEAS 3 TO 6
M.
.30 HOUR FORECAST LOW 45N165E 988 MB. WITHIN 150 NM E
QUADRANT...WITHIN 90 NM SW AND W SEMICIRCLES...AND WITHIN 150 NM
E AND NE OF A FRONT EXTENDING FROM 44N167E TO 42N168E TO 40N168E
WINDS 40 TO 55 KT. SEAS 3.5 TO 7 M.
.48 HOUR FORECAST LOW 47N169E 982 MB. WITHIN 240 NM SW SEMICIRCLE
WINDS 40 TO 50 KT. SEAS 4.5 TO 9 M. ELSEWHERE FROM 33N TO 53N
BETWEEN 180W AND 160E WINDS 25 TO 40 KT. SEAS 3 TO 6 M.

...GALE WARNING...
.LOW 54N162W 1004 MB NEARLY STATIONARY. WITHIN 540 NM W AND 480
NM N QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR
54N173W.
.24 HOUR FORECAST LOW 54N163W 1004 MB. FROM 55N TO 60N BETWEEN
157W AND 177W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 52N178E 1003 MB. FROM 50N TO 55N
BETWEEN 180W AND 173E WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 48N176W 1000 MB. FROM 40N TO 50N
BETWEEN 168W AND 174E...AND WITHIN 240 NM E AND SE OF A FRONT TO
EXTEND FROM 40N175W TO 30N165E WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW ABSORBED. CONDITIONS DESCRIBED ABOVE WITH
LOW 59N150W.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 41N177W 1000 MB. WITHIN 300 NM NE...540
NM SE...AND 720 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5.5
M.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 59N162W TO
59N168W TO 63N174W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N
OF A LINE FROM 58N162W TO 58N170W TO 60N179W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 58N158W TO 59N167W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF A LINE FROM 57N158W TO 59N170W TO 61N176W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NE OF A
LINE FROM 57N158W TO 58N164W TO 63N174W. ELSEWHERE LIGHT TO
MODERATE FREEZING SPRAY N OF A LINE FROM 59N151W TO 55N155W TO
56N165W TO 61N177W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 52N
BETWEEN 140W AND 155W...AND WITHIN 60 NM EITHER SIDE OF A LINE
FROM 47N174E TO 54N168E.
.24 HOUR FORECAST DENSE FOG WITHIN 90 NM OF 55N150W...AND WITHIN
60 NM EITHER SIDE OF A LINE FROM 49N175W TO 53N177E TO
56N173E...AND FROM 42N TO 48N BETWEEN 160E AND 166E.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 58N137W TO 60N145W
TO 56N155W...AND FROM 46N TO 52N BETWEEN 163E AND 174E.

.FORECASTER HUFFMAN. 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 THU DEC 4.
24 HOUR FORECAST VALID 1800 UTC FRI DEC  5.
48 HOUR FORECAST VALID 1800 UTC SAT DEC  6.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.33 HOUR FORECAST WITHIN 26N138W TO 27N136W TO 27N140W TO
24N140W TO 25N138W TO 26N138W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 24N138W TO 25N140W TO 21N140W TO
21N137W TO 23N137W TO 24N138W 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 2000 UTC THU DEC 4...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N80W TO 09N102W. ITCZ AXIS
FROM 09N102W TO 09N125W TO06N140W. SCATTERED MODERATE FROM 03N
TO 09N E OF 88W AND FROM 07N TO 12N AND 118W AND 126W.

.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.

$$