370
FZPN01 KWBC 030404
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC DEC 03.
24 HOUR FORECAST VALID 0000 UTC DEC 04.
48 HOUR FORECAST VALID 0000 UTC DEC 05.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW W OF AREA 36N142E 1007 MB MOVING NE 30 KT AND RAPIDLY
INTENSIFYING. ASSOCIATED CONDITIONS W OF 160E.
.18 HOUR FORECAST LOW W OF AREA 43N153E 978 MB. FROM 30N TO 45N
BETWEEN 163E AND 160E WINDS 25 TO 40 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW W OF AREA 46N155E 966 MB. FROM 35N TO 50N
BETWEEN 165E AND 160E WINDS 40 TO 55 KT. SEAS 3.5 TO 7 M.
ELSEWHERE N OF 30N W OF 171E WINDS 25 TO 40 KT. SEAS TO 4 M.
.36 HOUR FORECAST LOW W OF AREA 51N158E 949 MB. FROM 46N TO 54N
BETWEEN 169E AND 164E WINDS 50 TO 65 KT. SEAS 6 TO 10 M.
.48 HOUR FORECAST LOW WELL W OF AREA. WITHIN 240 NM E AND NE OF A
FRONT FROM 54N168E TO 47N174E WINDS 35 TO 50 KT. SEAS 5 TO 9 M.
ELSEWHERE N OF 33N W OF 180W WINDS 25 TO 40 KT. SEAS 3.5 TO 7
M...HIGHEST N OF 48N W OF 165E.

...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 54N169W 971 MB MOVING SE 10 KT AND
SECOND CENTER 50N168W 972 MB MOVING NE 10 KT. WITHIN 420 NM W AND
NW QUADRANTS OF FIRST CENTER WINDS 40 TO 55 KT. SEAS 5 TO 10 M.
ALSO BETWEEN 240 NM AND 720 NM SW QUADRANT OF SECOND CENTER WINDS
35 TO 50 KT. SEAS 4 TO 8 M. ELSEWHERE N OF A LINE FROM 45N150W TO
30N170W TO 30N172E WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST COMBINED LOW 53N166W 990 MB. WITHIN 360 NM E
AND SE SEMICIRCLES...540 NM NW QUADRANT N OF THE ALEUTIAN
ISLANDS...AND FROM 30N TO THE ALEUTIAN ISLANDS BETWEEN 170W AND
178E WINDS 25 TO 40 KT. SEAS 3 TO 6 M...EXCEPT NW QUADRANT SEAS 4
TO 8 M.
.48 HOUR FORECAST LOW 54N163W 1002 MB. N OF THE ALEUTIAN ISLANDS
BETWEEN 172W AND 157W WINDS 20 TO 30 KT. SEAS TO 4 M.

...GALE WARNING...
.LOW W OF AREA 44N156E 1004 MB MOVING NE 20 KT. FROM 30N TO 52N
BETWEEN 165E AND 160E WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW ABSORBED BY LOW 46N155E WITH CONDITIONS
DESCRIBED ABOVE.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 60N164W TO
61N175W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
ALASKA.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 59N164W TO 63N173W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF 58N W OF ALASKA.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY WITHIN 90 NM
OF THE ALASKA COAST FROM 163W TO 168W. ELSEWHERE LIGHT TO
MODERATE FREEZING SPRAY LIGHT TO MODERATE FREEZING SPRAY N OF A
LINE FROM 58N161W TO 61N177W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM EITHER
SIDE OF A LINE FROM 55N140W TO 40N151W...FROM 43N TO 49N BETWEEN
172W AND 180W...AND 180 NM EITHER SIDE OF A LINE FROM 61N165W TO
55N174W.
.24 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 130W AND
152W...FROM 42N TO 50N W OF 170E...AND WITHIN 120 NM EITHER SIDE
OF A LINE FROM 60N165W TO 50N173W.
.48 HOUR FORECAST DENSE FOG WITHIN 180 NM EITHER SIDE OF A LINE
FROM 48N127W TO 53N158W...WITHIN 120 NM EITHER SIDE OF A LINE
FROM 47N140W TO 41N150W...AND 180 NM EITHER SIDE OF A LINE FROM
54N169E TO 47N175E.

.FORECASTER COLLINS. 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 0000 UTC WED DEC 3.
24 HOUR FORECAST VALID 0000 UTC THU DEC  4.
48 HOUR FORECAST VALID 0000 UTC FRI DEC  5.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 16N94.5W TO 16N95.5W TO 15N95.5W TO 15N95W TO 15N94.5W
TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 19N118W TO 23N126W TO 30N125W TO 30N140W TO 07N140W TO
09N132W TO 19N118W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W
TO NW SWELL.
.24 HOUR FORECAST WITHIN 14N125W TO 22N118W TO 22N140W TO
05N132W TO 01N124W TO 09N120W TO 14N125W WINDS 20 KT OR LESS.
SEAS 2.5 M IN NW SWELL.
.48 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 0230 UTC WED DEC 3...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 07N105W. ITCZ FROM 07N105W TO
10N120W...THEN RESUMES FROM 11N126W TO BEYOND 07N140W. SURFACE
TROUGH BREAKS ITCZ...FROM 20N119W TO 11N123W. SCATTERED MODERATE
IN THE VICINITY OF TROUGH BETWEEN 110W AND 124W. SCATTERED
MODERATE FROM 07N TO 11N E OF 96W...AND FROM 06N TO 10N W OF
125W.


.FORECASTER ERA. NATIONAL HURRICANE CENTER.

$$