HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC THU NOV 27 2025
CCODE/2:31:12:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC NOV 27.
24 HOUR FORECAST VALID 1200 UTC NOV 28.
48 HOUR FORECAST VALID 1200 UTC NOV 29.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 39N172E 964 MB MOVING NE 30 KT. WITHIN 240 NM SW SEMICIRCLE
WINDS 55 TO 70 KT. SEAS 8 TO 11 M. ALSO FROM 32N TO 44N BETWEEN
164E TO 175W WINDS 40 TO 55 KT. SEAS 5 TO 9 M. ELSEWHERE W OF A
LINE FROM 47N180W TO 40N170W TO 30N170W WINDS 25 TO 40 KT. SEAS
2.5 TO 5.5 M.
.24 HOUR FORECAST LOW 41N175W 960 MB. WITHIN 600 NM NE...420 NM
SE...540 NM SW...AND 480 NM NW QUADRANTS WINDS 40 TO 55 KT. SEAS
5.5 TO 12 M. ALSO FROM 30N TO 53N BETWEEN 155W AND 166W WINDS 25
TO 40 KT. SEAS 4 TO 9 M. ELSEWHERE S OF 50N W OF 180W WINDS LESS
THAN 25 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW 44N171W 964 MB. WITHIN 600 NM N...540 NM
SE...660 NM SW...AND 540 NM NW QUADRANTS WINDS 40 TO 50 KT. SEAS
5 TO 10 M. ELSEWHERE FROM 30N TO 58N BETWEEN 172E AND 150W WINDS
25 TO 40 KT. SEAS 3 TO 8 M...HIGHEST S OF CENTER.
...STORM WARNING...
.LOW 39N155W 983 MB MOVING NE 25 KT. WITHIN 300 NM SE...240 NM
SW...AND 120 NM NW QUADRANTS WINDS 40 TO 55 KT. SEAS 4 TO 7.5 M.
ALSO FROM 30N TO 43N TO 144W TO 161W WINDS 25 TO 40 KT. SEAS 3 TO
5.5 M. ELSEWHERE S OF 41N BETWEEN 142W AND 170W WINDS LESS THAN
25 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 41N142W 1003 MB. FROM 35N TO 50N BETWEEN
150W AND 135W WINDS 25 TO 35 KT. SEAS 3 TO 6 M. ELSEWHERE FROM
30N TO 50N BETWEEN 155W AND 135W WINDS LESS THAN 25 KT. SEAS 2.5
TO 4.5 M.
.48 HOUR FORECAST LOW 36N134W 1015 MB. FROM 30N TO 50N BETWEEN
130W AND 145W WINDS LESS THAN 25 KT. SEAS 2.5 TO 4 M.
...STORM WARNING...
.LOW 46N130W 998 MB MOVING E 10 KT. WITHIN 180 NM SW AND W
SEMICIRCLES WINDS 40 TO 50 KT. SEAS 4 TO 6.5 M. ELSEWHERE FROM
40N TO 50N E OF 140W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 46N124W 1014 MB. WITHIN 240 NM W SEMICIRCLE
WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.
...GALE WARNING...
.LOW 57N159W 997 MB MOVING NW 20 KT. WITHIN 420 NM NE AND E OF A
LINE FROM LOW CENTER TO 59N157W TO 56N150W TO 48N150W WINDS 25 TO
35 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 63N166W 1009 MB. ASSOCIATED CONDITIONS
DIMINISHED.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW 58N147W 1012 MB. WITHIN 420 NM NE
QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.
...GALE WARNING...
.48 HOUR FORECAST S OF 52N W OF 165E WINDS 25 TO 40 KT. SEAS 2.5
TO 4 M.
...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM 63N166W TO
64N171W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 59N W
OF
ALASKA.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 59N W OF
ALASKA.
.48 HOUR FORECAST LITTLE CHANGE.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 59N BETWEEN
165W AND 171W.
.24 HOUR FORECAST DENSE FOG N OF 62N W OF ALASKA.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 55N BETWEEN 151W AND
176W.
.FORECASTER BYRD. 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 1200 UTC THU NOV 27.
24 HOUR FORECAST VALID 1200 UTC FRI NOV 28.
48 HOUR FORECAST VALID 1200 UTC SAT NOV 29.
.WARNINGS.
...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 3 TO 3.5 M.
ELSEWHERE WITHIN 16N94W TO 16N96W TO 12N98W TO 12N97W TO 14N94W
TO 16N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
14N95W TO 15N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE
WITHIN 16N94W TO 16N96W TO 12N98W TO 12N96W TO 13N94W TO 16N94W N
TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA
WITHIN 16N94W TO 16N95W TO 14N99W TO 11N100W TO 11N96W TO 13N93W
TO 16N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN N TO NE SWELL.
.42 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N96W TO 14N97W TO
13N97W TO 13N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.SYNOPSIS AND FORECAST.
.WITHIN 11N86W TO 10N89W TO 09N91W TO 08N89W TO 09N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 30 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.WITHIN 12N104W TO 13N124W TO 17N140W TO 07N140W TO 02N114W TO
03N105W TO 12N104W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.
.24 HOUR FORECAST WITHIN 17N138W TO 26N140W TO 07N140W TO
09N135W TO 12N134W TO 17N138W WINDS 20 KT OR LESS. SEAS TO 2.5 M
IN MIXED SWELL.
.48 HOUR FORECAST WITHIN 15N136W TO 16N140W TO 07N140W TO
08N136W TO 11N135W TO 15N136W WINDS 20 KT OR LESS. SEAS TO 2.5 TO
IN NW SWELL.
.36 HOUR FORECAST WITHIN 30N138W TO 30N140W TO 28N140W TO
30N138W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN W TO NW SWELL.
.48 HOUR FORECAST WITHIN 30N133W TO 30N140W TO 23N140W TO
25N137W TO 30N133W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW
SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC THU NOV 27...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 09N120W. ITCZ FROM 09N120W TO
BEYOND 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM 04N TO
08N AND E OF 85W...FROM 07N TO 16N BETWEEN 108W AND 127W.
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E
SYNOPSIS VALID 1200 UTC NOV 27 2025.
24 HOUR FORECAST VALID 1200 UTC NOV 28 2025.
48 HOUR FORECAST VALID 1200 UTC NOV 29 2025.
.WARNINGS.
...GALE WARNING...
.FRONT 30N178E 25N168E 25N160E MOVING E 30 KT. WINDS 25 TO 35 KT
N OF 29N BETWEEN 176W AND 179W. WINDS 20 TO 25 KT ELSEWHERE N OF
LINE 30N161E 24N165E 25N178E 30N173W. ISOLATED MODERATE TSTMS N
WITHIN 120 NM OF FRONT N OF 26N.
.24 HOUR FORECAST FRONT 30N174W 25N179W 21N171E. WINDS 25 TO 35
KT N OF LINE 30N178E 28N179W 30N175W...AND N OF 29N BETWEEN 169W
AND 167W. WINDS 20 TO 25 KT ELSEWHERE N OF LINE 30N169E 22N179W
27N162W 30N159W.
.48 HOUR FORECAST FRONT 30N163W 25N170W 20N178E. WINDS 20 TO 25
KT N OF LINE 30N178W 25N164W 30N155W.
.SYNOPSIS AND FORECAST.
.FRONT 30N156W 27N163W 26N168W MOVING NE 30 KT. WINDS 20 TO 25 KT
N OF 29N BETWEEN 159W AND 150W. ISOLATED MODERATE TSTMS WITHIN 150
NM OF FRONT.
.24 HOUR FORECAST MOVED N OF AREA.
.48 HOUR FORECAST NEW LOW NEAR 28N161E 1006 MB. NEW TROUGH FROM
30N162E TO LOW TO 26N160E. WINDS 20 TO 25 KT FROM 29N TO 25N W OF
165E.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 4 TO 5 M N OF LINE 30N161E 28N172E 28N167E 29N173E
30N178E...AND N OF LINE 30N168W 28N166W 30N161W. SEAS 2.5 TO 4 M
ELSEWHERE N OF LINE 25N160E 24N176E 23N169W 15N171E 04N177E
10N156W 20N148W 30N143W.
.24 HOUR FORECAST 6 TO 9 M N OF LINE 30N167E 25N176E 30N172W.
SEAS 4 TO 6 M ELSEWHERE N OF LINE 29N160E 23N168E 24N178W 30N166W.
SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 21N160E 21N176E 25N169W
21N157W 30N145W. SEAS 2.5 TO 3 M FROM 19N TO 07N E OF 173W.
.48 HOUR FORECAST SEAS 6 TO 9 M N OF LINE 30N178E 23N176W
30N163W. SEAS 4 TO 6 M ELSEWHERE N OF LINE 30N169E 19N170E 17N179E
25N165W 30N160W. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 15N160E
15N178E 21N168W 30N156W. SEAS 2.5 TO 3 M E OF LINE 30N147W 20N154W
09N179W 08N160W 08N140W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 07N140W 05N170W 07N175E. ISOLATED MODERATE TSTMS WITHIN 150
NM OF ITCZ.
.SCATTERED MODERATE TSTMS S OF 08N W OF 163E.
$$
.FORECASTER PIERCE. HONOLULU HI.=