HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC MON MAY 25 2026
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
SECURITE
PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT
TO 53N172E TO 50N180W TO 30N180W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 1800 UTC MAY 25.
24 HOUR FORECAST VALID 1800 UTC MAY 26.
48 HOUR FORECAST VALID 1800 UTC MAY 27.
.WARNINGS.
...STORM WARNING...
.LOW 54N170W 978 MB MOVING NE 20 KT. WITHIN 480 NM SE SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 6 TO 12 M...HIGHEST S OF CENTER.
ELSEWHERE FROM 42N TO 60N W OF 150W WINDS 25 TO 35 KT. SEAS 3 TO
6 M. ALSO S OF 59N W OF 151W WINDS TO 25 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 58N160W 987 MB. N OF 45N BETWEEN 146W AND
178W WINDS 25 TO 40 KT. SEAS 4 TO 8 M. ELSEWHERE S OF 45N W OF
146W WINDS TO 25 KT. SEAS TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 59N162W 1003 MB.
FROM 46N TO 55N BETWEEN 157W AND 171W WINDS 25 TO 35 KT. SEAS 3
TO 5 M...EXCEPT SEAS TO 4 M WITHIN THE BERING SEA. ELSEWHERE FROM
39N TO 59N BETWEEN 133W AND 179W WINDS TO 25 KT. SEAS 2.5 TO 4.5
M.
...GALE WARNING...
.LOW 50N131W 996 MB MOVING SE 15 KT. WITHIN 360 NM SW SEMICIRCLE
WINDS 35 TO 45 KT. SEAS 3.5 TO 9 M...HIGHEST SW OF CENTER.
ELSEWHERE FROM 40N TO 56N BETWEEN 127W AND 142W WINDS 25 TO 40
KT. SEAS 3.5 TO 6.5 M. ALSO FROM 36N TO 57N BETWEEN 124W AND 155W
WINDS TO 25 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND. FROM 30N TO 52N BETWEEN
121W AND 149W.
.48 HOUR FORECAST S OF 50N BETWEEN 118W AND 133W AREA OF NW TO N
WINDS 20 TO 30 KT. SEAS 3 TO 6 M. ELSEWHERE S OF 49N BETWEEN 117W
AND 150W AREA OF N TO NE WINDS TO 25 KT. SEAS 2.5 TO 5 M.
.SYNOPSIS AND FORECAST.
.48 HOUR FORECAST WITHIN 300 NM NE OF A LINE FROM 46N180W TO
44N174W WINDS TO 25 KT. SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 48N TO 59N W OF
160W...WITHIN 120 NM NW OF A LINE FROM 43N158W TO 49N155W.
.24 HOUR FORECAST DENSE FOG N OF 53N BETWEEN 165W AND 174W AND
WITHIN 60 NM NW OF A LINE FROM 46N148W TO 49N143W.
.48 HOUR FORECAST DENSE FOG FROM 53N TO 58N BETWEEN 162W AND
159W.
.FORECASTER HYDE. 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 1800 UTC MON MAY 25.
24 HOUR FORECAST VALID 1800 UTC TUE MAY 26.
48 HOUR FORECAST VALID 1800 UTC WED MAY 27.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 17N120W TO 19N128W TO 20N140W TO 16N139W TO 12N123W TO
12N114W TO 17N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
.24 HOUR FORECAST WITHIN 18N130W TO 20N140W TO 13N140W TO
13N124W TO 18N130W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M
IN N TO NE SWELL.
.48 HOUR FORECAST LITTLE CHANGE.
.WITHIN 01S102W TO 01N107W TO 01N111W TO 03.4S116W TO 03.4S100W
TO 01S102W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW
SWELL.
.24 HOUR FORECAST WITHIN 02S107W TO 01S111W TO 02S120W TO
03.4S120W TO 03S107W TO 02S107W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 02S112W TO 01S113W TO 01S115W TO
02S117W TO 03.4S117W TO 03.4S111W TO 02S112W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.30 HOUR FORECAST WITHIN 30N129W TO 30N140W TO 28N140W TO
29N133W TO 30N129W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN NW
TO N SWELL.
.48 HOUR FORECAST WITHIN 30N117W TO 30N140W TO 25N140W TO
25N132W TO 26N123W TO 30N117W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW TO N SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 2100 UTC MON MAY 25...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N78W TO 07N100W TO 08N105W. ITCZ FROM
08N105W TO 10N115W TO 10N120W. SCATTERED MODERATE TO ISOLATED
STRONG FROM 03N TO 08N EAST OF 100W. SCATTERED MODERATE
FROM 04N TO 12N BETWEEN 110W AND 125W.
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC MAY 25 2026.
24 HOUR FORECAST VALID 1800 UTC MAY 26 2026.
48 HOUR FORECAST VALID 1800 UTC MAY 27 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 08N160W 03N160W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 08N164W 03N167W.
.48 HOUR FORECAST TROUGH 08N169W 03N172W.
.WINDS 20 TO 25 KT 17N TO 23N BETWEEN 160W AND 155W.
.24 HOUR FORECAST WINDS 20 TO 25 KT 10N TO 23N BETWEEN 163W
AND 155W.
.48 HOUR FORECAST WINDS 20 TO 25 KT 17N TO 23N BETWEEN 160W
AND 155W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3.5 M N OF LINE 20N180W 30N170W...AND FROM 23N TO 28N
BETWEEN 165W AND 160W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M WITHIN 300 NM OF LINE 20N180W
30N169W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 18N TO 30N BETWEEN 180W
AND 160W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 05N180W 03N172W 04N162W. MONSOON TROUGH 04N154W 06N140W.
SCATTERED MODERATE TO STRONG TSTMS WITHIN 240 NM N OF ITCZ
BETWEEN 165W AND 150W...AND WITHIN 90 NM S OF MONSOON TROUGH...AND
WITHIN 300 NM N OF MONSOON TROUGH.
.ISOLATED MODERATE TSTMS WITHIN 90 NM OF POINT 09N178W.
$$
.FORECASTER PECHACEK. HONOLULU HI.=