HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC MON NOV 24 2025
CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC NOV 24.
24 HOUR FORECAST VALID 0000 UTC NOV 25.
48 HOUR FORECAST VALID 0000 UTC NOV 26.
.WARNINGS.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 52N172E 968 MB MOVING SE 10 KT.
BETWEEN 180 NM AND 420 NM NE...WITHIN 660 NM SE...480 NM SW AND
420 NM W QUADRANTS WINDS 35 TO 50 KT. SEAS 5 TO 9 M. ELSEWHERE N
OF THE ALEUTIAN ISLANDS N OF 52N W OF 175W AND WITHIN 960 NM
SE...S AND 660 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 6
M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 50N179E 982 MB.
BETWEEN 180 NM AND 600 NM SE...120 NM AND 540 NM S AND BETWEEN
120 NM AND 360 SW QUADRANTS WINDS 35 TO 50 KT. SEAS 5 TO 9 M.
ELSEWHERE N OF 50N W OF 180W AND WITHIN 900 NM SE...660 NM SW AND
780 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 53N171W 980 MB AND A
SECOND LOW 48N168W 988 MB. WITHIN 120 NM NW OF A LINE FROM
53N173W TO 56N169W AND FROM 40N TO 46N BETWEEN 166W AND 176W
WINDS 35 TO 45 KT. SEAS 5 TO 8 FT. ELSEWHERE WITHIN 480 NM
NE...600 NM N AND 480 NM NW QUADRANTS OF MAIN LOW AND WITHIN 660
NM NE...600 NM SE...S AND 540 NM SW QUADRANTS OF SECOND LOW
WINDS 25 TO 35 KT. SEAS 3 TO 6 M...EXCEPT 2.5 TO 4 M N OF THE
ALEUTIAN ISLANDS.
...GALE WARNING...
.COMPLEX LOW WITH FIRST LOW 51N172W 984 MB MOVING NW 10 KT AND
SECOND LOW 46N162W 988 MB MOVING NE AT 15 KT. WITHIN 180 NM N AND
NE OF A FRONT FROM 52N175W TO THE FIRST LOW TO 49N166W TO THE
SECOND LOW TO 45N160W WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ELSEWHERE
WITHIN 600 NM N...360 NM NE AND 480 NM E QUADRANTS OF FIRST LOW
AND FROM 37N TO 50N BETWEEN 160W AND 175W WINDS 25 TO 35 KT. SEAS
2.5 TO 5 M.
.24 HOUR FORECAST FIRST LOW 54N176W 984 MB AND SECOND LOW 53N160W
984 MB. WITHIN 180 NM NW SEMICIRCLE OF FIRST LOW AND WITHIN 240
NM NE...90 NM SE...SW AND 240 NM NW QUADRANTS OF SECOND LOW WINDS
35 TO 45 KT. SEAS 3.5 TO 6 M. ELSEWHERE FROM 40N TO 55N BETWEEN
150W AND 165W AND N OF THE ALEUTIAN ISLANDS N OF 53N BETWEEN 158W
AND 180W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOWS ABSORBED AND CONDITIONS DESCRIBED ABOVE
WITH LOWS 53N171W AND 48N168W.
...GALE WARNING...
.LOW 42N158W 997 MB MOVING NE 25 KT. WITHIN 240 NM N AND NE OF A
FRONT FROM 45N160W TO THE LOW TO 37N159W WINDS 35 TO 45 KT. SEAS
3.5 TO 5 M. ELSEWHERE WITHIN AN AREA BOUNDED BY A LINE FROM
33N160W TO 52N160W TO 40N146W TO 33N160W WINDS 25 TO 35 KT. SEAS
2.5 TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 49N147W 994 MB.
WITHIN 180 NM SW SEMICIRCLE AND WITHIN 180 NM NE OF A LINE FROM
THE LOW TO 44N137W WINDS 25 TO 40 KT. SEAS 3.5 TO 5 M. ELSEWHERE
FROM 43N TO 55N BETWEEN 150W AND 131W AND WITHIN 240 NM SE OF A
LINE FROM 43N141W TO 34N149W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5
M.
.36 HOUR FORECAST LOW 51N141W 998 MB. BETWEEN 60 NM AND 180 NM SW
SEMICIRCLE...WITHIN 180 NM N AND NE OF A FRONT FROM THE LOW TO
48N131W TO 46N130W AND WITHIN 120 NM SE OF FRONT FROM 46N130W TO
44N133W WINDS 35 TO 45 KT. SEAS 3 TO 6 M...HIGHEST NEAR 49N133W.
.48 HOUR FORECAST LOW 52N137W 1004 MB. BETWEEN 90 NM AND 240 NM
NE QUADRANT AND WITHIN 90 NM N AND NE OF A LINE FROM 52N133W TO
49N127W WINDS 35 TO 45 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 300
NM SW SEMICIRCLE AND WITHIN 300 NM NE AND 720 NM NW QUADRANTS
WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ALSO WITHIN 120 NM SE OF A
LINE FROM 46N126W TO 34N150W WINDS 20 TO 30 KT. SEAS TO 3 M.
...GALE WARNING...
.36 HOUR FORECAST LOW 33N167E 1010 MB. FROM 30N TO 35N W OF 170E.
WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 37N172E 1000 MB. WITHIN 300 NM SE
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 3 TO 5 M...HIGHEST NEAR
36N171E. ELSEWHERE FROM 31N TO 40N BETWEEN 180W AND 170E WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.
...GALE WARNING...
.48 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 42N161E 993 MB.
WITHIN 180 NM S SEMICIRCLE AND WITHIN 120 NM N OF A LINE FROM
42N160E TO 42N168E WINDS 30 TO 45 KT. SEAS 3 TO 5 M. ELSEWHERE
FROM 30N TO 46N W OF 170E WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY FROM 57N TO 60N E OF 170W TO
ALASKA AND N OF 60N W OF ALASKA. ELSEWHERE LIGHT TO MODERATE
FREEZING SPRAY FROM 57N TO 60N W OF 170W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
157W
.48 HOUR FORECAST LITTLE CHANGE.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM NE OF
A LINE FROM 55N172E TO 51N171W AND N OF 51N W OF 170E.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM N OF A LINE FROM
53N162W TO 53N167W TO 53N180W AND FROM 50N TO 53N BETWEEN 176E
AND 173E.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM N OF A LINE FROM
57N150W TO 57N160W TO 57N168W.
.FORECASTER FUTTERMAN. 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 MON NOV 24.
24 HOUR FORECAST VALID 0000 UTC TUE NOV 25.
48 HOUR FORECAST VALID 0000 UTC WED NOV 26.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 16N93W TO 16N95W TO 16N96W TO 13N96W TO 13N94W TO 14N93W
TO 16N93W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
20 TO 30 KT. SEAS 2.5 M.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 11N86W TO 12N86W TO 11N88W TO 10N88W TO 09N88W TO 09N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E 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 30N116W TO 30N140W TO 05N140W TO 08N124W TO 13N113W TO
30N116W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 21N108W TO 30N116W TO 26N140W TO
07N140W TO 06N123W TO 10N111W TO 21N108W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 15N109W TO 18N118W TO 20N140W TO
08N140W TO 07N110W TO 15N109W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW SWELL.
.03 HOUR FORECAST WITHIN 21N105W TO 21N106W TO 20N107W TO
19N107W TO 19N106W TO 19N105W TO 21N105W...INCLUDING NEAR CABO
CORRIENTES... 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.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0200 UTC MON NOV 24...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 07N96W. ITCZ FROM 07N96W TO
10N120W TO BEYOND 07N140W. SCATTERED MODERATE FROM 05N TO 10N
BETWEEN 101W AND 137W.
.FORECASTER AL. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 0000 UTC NOV 24 2025.
24 HOUR FORECAST VALID 0000 UTC NOV 25 2025.
48 HOUR FORECAST VALID 0000 UTC NOV 26 2025.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 30N175W 26N160E MOVING E 10 KT AND NEARLY STATIONARY W
OF 169E. WINDS 20 TO 25 KT WITHIN 90 NM OF FRONT.
.24 HOUR FORECAST FRONT 30N167W 25N175E 25N160E. WINDS 20 TO 25
KT WITHIN 120 NM OF FRONT.
.48 HOUR FORECAST FRONT 30N156W 25N168W. WINDS DECREASED TO 20 KT
OR BELOW.
.E WINDS 20 TO 25 KT FROM 23N TO 09N W OF 175W. E WINDS 20 TO 25
KT FROM 13N TO 08N BETWEEN 140W AND 175W.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 21N TO 08N W OF 179E.
E WINDS 20 TO 25 KT 11N TO 05N BETWEEN 140W AND 179E.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 14N TO 08N.
.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 20N TO 11 W OF 178E.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF A LINE FROM 30N170W
21N171E 12N170E 12N160E. SEAS 2.5 TO 3 M FROM 09N TO 06N BETWEEN
150W AND 164W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF A LINE FROM 30N160W
19N175E. SEAS 2.5 TO 3.5 M FROM 10N TO 04N FROM 155W TO 170E.
.OTHERWISE...SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 07N140W 06N144W 06N177E. ISOLATED MODERATE TSTMS WITHIN 120
NM N OF 1TCZ.
.ISOLATED MODERATE TSTMS S OF 16N W OF 170E.
$$
.FORECASTER FOSTER. HONOLULU HI.=