948
FZPN01 KWBC 030950
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 03.
24 HOUR FORECAST VALID 0600 UTC DEC 04.
48 HOUR FORECAST VALID 0600 UTC DEC 05.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW W OF AREA 37N145E 998 MB MOVING NE 30 KT AND RAPIDLY
INTENSIFYING. ASSOCIATED CONDITIONS W OF 160E.
.12 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.
.18 HOUR FORECAST LOW 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 W OF AREA 49N156E 950 MB. FROM 48N TO 53N
BETWEEN 167E AND 162E WINDS 50 TO 65 KT. SEAS 6 TO 9 M. ALSO N OF
37N W OF 168E WINDS 40 TO 55 KT. SEAS 4 TO 8 M. ELSEWHERE N OF
30N W OF 172E WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW WELL W OF AREA. NEW LOW TO FORM 50N175E 997
MB. N OF 40N W OF 178W AND WITHIN 360 NM E OF A FRONT FROM
40N176E TO 30N167E WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M...EXCEPT N
OF 45N W OF 175E SEAS 4 TO 7 M.

...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 53N169W 974 MB MOVING SE 10 KT AND
SECOND CENTER 51N166W 974 MB MOVING NE 10 KT. WITHIN 420 NM NW
QUADRANT OF FIRST CENTER WINDS 40 TO 55 KT. SEAS 5 TO 10 M.
ELSEWHERE S OF THE ALEUTIAN ISLANDS WITHIN 600 NM E AND SE
SEMICIRCLES OF SECOND CENTER...AND N OF 30N BETWEEN 166W AND 173E
WINDS 25 TO 40 KT. SEAS 4 TO 8 M...EXCEPT E AND SE SEMICIRCLES OF
SECOND CENTER SEAS 3 TO 6 M.
.24 HOUR FORECAST COMBINED LOW 53N164W 995 MB. BETWEEN 120 NM AND
540 NM W AND NW QUADRANTS WINDS 25 TO 40 KT. SEAS 3.5 TO 7
M...HIGHEST N OF THE ALEUTIAN ISLANDS. ELSEWHERE WITHIN 360 NM E
AND SE SEMICIRCLES AND N OF 30N BETWEEN 163W AND 180W WINDS 20 TO
30 KT. SEAS 3 TO 6 M...EXCEPT E AND SE SEMICIRCLES SEAS TO 4 M.
.48 HOUR FORECAST LOW 54N162W 1004 MB. WITHIN 480 NM N QUADRANT
WINDS 20 TO 30 KT. SEAS TO 4 M.

...GALE WARNING...
.LOW W OF AREA 47N159E 1004 MB MOVING NE 20 KT. FROM 40N TO 52N
BETWEEN 167E AND 160E WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW ABSORBED BY LOW 49N156E WITH CONDITIONS
DESCRIBED ABOVE.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N AND NE OF A LINE FROM 60N166W
TO 62N174W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 59N W
OF ALASKA.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N AND NE OF A
LINE FROM 59N164W TO 60N168W TO 63N173W. ELSEWHERE LIGHT TO
MODERATE FREEZING SPRAY N OF 59N W OF ALASKA.
.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 58N161W TO 60N177W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM EITHER
SIDE OF A LINE FROM 54N137W TO 40N150W AND WITHIN 120 NM EITHER
SIDE OF A LINE FROM 60N165W TO 54N175W.
.24 HOUR FORECAST DENSE FOG FROM 44N TO 51N BETWEEN 135W AND
153W...WITHIN 120 NM EITHER SIDE OF A LINE FROM 59N160W TO
54N171W...AND FROM 44N TO 49N W OF 168E.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 48N126W TO 54N148W...180 NM EITHER SIDE OF A LINE FROM
46N140W TO 40N150W...AND 180 NM EITHER SIDE OF A LINE FROM
55N171E TO 50N176E.

.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 0600 UTC WED DEC 3.
24 HOUR FORECAST VALID 0600 UTC THU DEC  4.
48 HOUR FORECAST VALID 0600 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.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 21N119W TO 22N126W TO 30N123W TO 27N140W TO 06N140W TO
07N133W TO 21N119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.24 HOUR FORECAST WITHIN 14N125W TO 22N119W TO 17N140W TO
13N130W TO 01N127W TO 08N119W TO 14N125W WINDS 20 KT OR LESS.
SEAS 2.5 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 27N131W TO 29N132W TO 27N140W TO
13N140W TO 11N134W TO 27N131W WINDS 20 KT OR LESS. SEAS 2.5 M
IN N TO NE SWELL.

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

CONVECTION VALID AT 0830 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 ERA. NATIONAL HURRICANE CENTER.

$$