134
FZPN01 KWBC 200942
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU NOV 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

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 NOV 20.
24 HOUR FORECAST VALID 0600 UTC NOV 21.
48 HOUR FORECAST VALID 0600 UTC NOV 22.

.WARNINGS.

...STORM WARNING...
.LOW 56N159W 951 MB MOVING NE 15 KT. WITHIN 300 NM SE SEMICIRCLE
WINDS 45 TO 60 KT. SEAS 6 TO 10 M. ALSO FROM 38N TO 58N BETWEEN
143W AND 167W WINDS 30 TO 45 KT. SEAS 4 TO 8.5 M IN MIXED
SWELL...EXCEPT SEAS TO 4 M WITHIN 240 NM NW QUADRANT. ELSEWHERE S
OF THE ALEUTIAN ISLANDS N OF 35N BETWEEN 143W AND 170W WINDS 20
TO 30 KT. SEAS 3 TO 6 M.
.12 HOUR FORECAST LOW 58N155W 952 MB. WITHIN 300 NM SE AND S
QUADRANTS WINDS 40 TO 55 KT. SEAS 7 TO 10.5 M.
.24 HOUR FORECAST LOW 59N151W 962 MB. WITHIN 1020 NM SE AND 1200
NM SW QUADRANTS...AND WITHIN THE BERING SEA E OF 178E WINDS 25 TO
40 KT. SEAS 4 TO 8.5 M...HIGHEST NEAR 57N147W AND
48N162W...EXCEPT SEAS 3 TO 5.5 M WITHIN THE BERING SEA. ELSEWHERE
N OF 40N E OF 173E...INCLUDING WITHIN THE BERING SEA...AND S OF
40N BETWEEN 145W AND 173E WINDS TO 25 KT. SEAS 3 TO 6 M...EXCEPT
SEAS 2.5 TO 4 M WITHIN THE BERING SEA.
.48 HOUR FORECAST LOW 61N149W 992 MB. BETWEEN 240 NM AND 780 NM S
AND W SEMICIRCLES WINDS 25 TO 35 KT. SEAS 3.5 TO 6.5 M...HIGHEST
NEAR 52N142W. ELSEWHERE FROM 34N TO 59N BETWEEN 126W AND 172W
WINDS TO 25 KT. SEAS 3 TO 4.5 M.

...STORM WARNING...
.LOW 51N179E 975 MB MOVING E 35 KT. WITHIN 480 NM SE QUADRANT AND
360 NM SW SEMICIRCLE WINDS 40 TO 55 KT. SEAS 6 TO 9.5 M...HIGHEST
NEAR 46N180W. ALSO FROM 40N TO 51N BETWEEN 165W AND 180W...AND N
OF 40N W OF 180W WINDS 25 TO 40 KT. SEAS 4 TO 8.5 M IN MIXED
SWELL. ELSEWHERE S OF 40N W OF 170W WINDS TO 25 KT. SEAS 3 TO 7
M...HIGHEST ALONG 40N.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DESCRIBED WITH LOW 59N151W ABOVE.

...GALE WARNING...
.COMPLEX LOW WITH FIRST CENTER 58N148W 977 MB MOVING NE 10 KT AND
SECOND CENTER 52N135W 991 MB MOVING NE 15 KT. FROM 38N TO 54N
BETWEEN 127W AND 140W...AND WITHIN 120 NM N AND E OF A FRONT FROM
FIRST CENTER TO 50N150W TO 59N144W TO 55N136W TO 46N126W WINDS 25
TO 40 KT. SEAS 4 TO 8.5 M...HIGHEST S OF FIRST CENTER. ELSEWHERE
N OF 32N BETWEEN 122W AND 143W...AND NE OF A LINE FROM 40N140W TO
57N153W WINDS TO 25 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST SECOND CENTER DISSIPATED INLAND. FIRST CENTER
AND ASSOCIATED CONDITIONS DESCRIBED WITH LOW 59N151W ABOVE.

...GALE WARNING...
.LOW 62N169W 967 MB MOVING S 10 KT. WITHIN 240 NM N QUADRANT AND
180 NM W SEMICIRCLE WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5
M...HIGHEST W AND SW OF CENTER. ELSEWHERE NW OF A LINE FROM
53N180W TO 61N167W WINDS 20 TO 30 KT. SEAS 2.5 TO 5.5 M IN NE
SWELL.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DESCRIBED WITH LOW 59N151W ABOVE.

...GALE WARNING...
.18 HOUR FORECAST NEW LOW JUST W OF AREA 36N157E 1010 MB. WITHIN
480 NM E SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW JUST W OF AREA 37N159E 1006 MB. WITHIN 420
NM E AND 540 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5
M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER NEAR 46N164E 996
MB AND SECOND CENTER NEAR 41N169E 998 MB. FROM 33N TO 50N W OF
180W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M.

...GALE WARNING...
.30 HOUR FORECAST LOW NW OF AREA NEAR 55N154E 982 MB. WITHIN 600
NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NW OF AREA NEAR
51N158E 978 MB. N OF 47N W OF 176E WINDS 25 TO 35 KT. SEAS 2.5 TO
4.5 M.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF 170W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY NW OF A LINE FROM 55N175E TO
64N165W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF
170W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
162W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 62N W OF
167W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 59N W OF
ALASKA.

.SYNOPSIS AND FORECAST.

.LOW 39N124W 1014 MB MOVING SW 15 KT. WITHIN 540 NM SW AND W
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 34N119W 1009 MB. S OF 40N E OF 134W WINDS
20 TO 30 KT. SEAS 3.5 TO 5.5 M IN NW SWELL.
.48 HOUR FORECAST LOW S OF AREA NEAR 29N118W 1008 MB. WITHIN 720
NM NW QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 57N E OF
152W...AND N OF 50N W OF 151W.
.24 HOUR FORECAST DENSE FOG N OF 54N E OF 160W...AND N OF 54N
WITHIN THE BERING SEA.
.48 HOUR FORECAST DENSE FOG N OF 53N BETWEEN 148W AND 175W...AND
N OF 42N W OF 168E.

.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 0600 UTC THU NOV 20.
24 HOUR FORECAST VALID 0600 UTC FRI NOV 21.
48 HOUR FORECAST VALID 0600 UTC SAT NOV 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N133W TO 30N140W. WITHIN 29N118W TO 30N130W
TO 24N128W TO 23N123W TO 26N117W TO 29N118W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N120W TO 24N130W TO 25N140W.
N OF FRONT...WITHIN 30N120W TO 30N128W TO 29N136W TO 27N137W TO
27N128W TO 28N123W TO 30N120W NW TO N WINDS 20 TO 25 KT...EXCEPT
N TO NE WINDS 20 TO 25 KT BETWEEN 129W AND 133W. SEAS 2.5 TO 3.5
M IN NW TO N SWELL. ELSEWHERE N OF FRONT...WITHIN 30N120W TO
29N133W TO 30N140W TO 26N140W TO 27N130W TO 28N122W TO 30N120W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW SWELL.
.48 HOUR FORECAST LOW PRES NEAR 30N117W 1010 MB WITH ASSOCIATED
COLD FRONT TO 23N120W AND WEAKENING TO 22N130W TO 20N140W. N OF
FRONT...WITHIN 30N120W TO 30N131W TO 29N123W TO 28N130W TO
26N125W TO 30N120W WINDS 20 KT OR LESS. SEAS 4 TO 4.5 M IN NW
SWELL. ELSEWHERE N OF FRONT...WITHIN 30N116W TO 30N140W TO
20N140W TO 22N123W TO 24N120W TO 30N116W...INCLUDING SEBASTIAN
VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW
SWELL.

.WITHIN 19N136W TO 20N137W TO 21N140W TO 14N140W TO 13N132W TO
18N131W TO 19N136W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
ELSEWHERE WITHIN 20N125W TO 21N140W TO 08N140W TO 16N126W TO
20N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 20N136W TO 20N140W TO 13N140W TO
13N133W TO 14N135W TO 20N136W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M. ELSEWHERE WITHIN 16N119W TO 19N123W TO 26N140W TO
14N135W TO 07N140W TO 08N129W TO 16N119W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN N SWELL.
.48 HOUR FORECAST WITHIN 15N122W TO 20N133W TO 20N140W TO
05N140W TO 10N125W TO 15N122W WINDS 20 KT OR LESS. SEAS 2.5 TO 3
M IN N SWELL.

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

CONVECTION VALID AT 0915 UTC THU NOV 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 08N78W TO 09.5N90W TO 08N103W TO

07N110W TO 08N117W. THE ITCZ AXIS EXTENDS FROM 08N117W TO 09N124W

TO 08N130W TO 08N140W. SCATTERED MODERATE TO STRONG FROM 03N TO
07N BETWEEN 78W AND 81W. SCATTERED MODERATE WITHIN 30 NM OF THE
ITCZ W OF 134W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$