HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC WED APR 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FROM APRIL 1 TO OCTOBER 15, DUE TO CLIMATOLOGY OF THE NORTH
PACIFIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 2.5 METERS OR
GREATER.
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 0000 UTC APR 01.
24 HOUR FORECAST VALID 0000 UTC APR 02.
48 HOUR FORECAST VALID 0000 UTC APR 03.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 52N142W 989 MB MOVING SE 20 KT.
WITHIN 300 NM SW SEMICIRCLE AND WITHIN 180 NM N AND NE OF A
FRONT FROM 55N145W TO 55N140W TO 52N134W WINDS 25 TO 40 KT. SEAS
3 TO 5.5 M. ELSEWHERE FROM 39N TO 55N BETWEEN 129W AND 162W AND
FROM 55N TO 58N E OF 155W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 48N129W 997 MB
AND A NEW SECOND CENTER 51N130W 995 MB. BETWEEN 120 NM AND 360
NM S AND SW QUADRANTS OF MAIN CENTER AND WITHIN 90 NM W
SEMICIRCLE OF SECOND CENTER WINDS 25 TO 35 KT. SEAS 4 TO 6
M...EXCEPT IN W SEMICIRCLE OF SECOND LOW SEAS 3 TO 4 M.
ELSEWHERE FROM 37N TO 55N BETWEEN 124W AND 144W WINDS 20 TO 30
KT. SEAS 2.5 TO 4.5 M...HIGHEST S AND SW OF MAIN CENTER.
.48 HOUR FORECAST COMPLEX LOW DISSIPATED. FROM 31N TO 43N E OF
128W AREA OF NW WINDS 20 TO 30 KT. SEAS TO 4 M...HIGHEST NEAR
41N125W.
...GALE WARNING...
.LOW 51N175W 996 MB MOVING NE 15 KT. FROM 46N TO 50N BETWEEN
171W AND 178W AND FROM 52N TO 54N BETWEEN 167W AND 177W WINDS 25
TO 35 KT. SEAS 3 TO 4.5 M...HIGHEST NEAR 48N175W.
.24 HOUR FORECAST LOW 52N165W 996 MB. FROM 46N TO 51N BETWEEN
161W AND 173W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE FROM
41N TO 57N BETWEEN 150W AND 176W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 55N147W 998 MB.
FROM 43N TO 55N BETWEEN 131W AND 162W AND FROM 55N TO 58N E OF
155W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 48N154W.
...GALE WARNING...
.12 HOUR FORECAST LOW JUST W OF AREA 31N179E 1013 MB. WITHIN 420
NM NE QUADRANT AREA OF NE WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 30N178W 1013 MB. S OF 37N W OF 172W WINDS
20 TO 30 KT. SEAS TO 4 M...HIGHEST NEAR 32N180W.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DININISHED.
...GALE WARNING...
.30 HOUR FORECAST LOW W OF AREA 53N165E 995 MB. WITHIN 360 NM E
QUADRANT AREA OF E TO SE WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 52N172E 1000 MB.
W OF A LINE FROM 57N174E TO 52N177W TO 43N175W WINDS 20 TO 30
KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 51N173E.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 49N
BETWEEN 158W AND 168W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.LIGHT FREEZING SPRAY NE OF A LINE FROM 60N179W TO 59N174W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 61N179W
TO 55N167W...AND N OF A LINE FROM 59N154W TO 60N144W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY NE OF A LINE FROM 60N179E
TO 56N170W TO 54N164W...AND N OF A LINE FROM 59N153W TO 60N144W.
.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.
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 WED APR 1.
24 HOUR FORECAST VALID 0000 UTC THU APR 2.
48 HOUR FORECAST VALID 0000 UTC FRI APR 3.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 31N114W TO 31N115W TO 30N115W TO 30N114W TO 31N114W...
INCLUDING THE GULF OF CALIFORNIA...S TO SW WINDS 20 TO 30 KT.
SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.03 HOUR FORECAST WITHIN 11N86W TO 12N86W TO 11N88W TO 10N88W TO
10N87W 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.
.18 HOUR FORECAST WITHIN 03S96.5W TO 02.5S100W TO 02.5S105.5W TO
03S109W TO 03.4S110W TO 03.4S95.5W TO 03S96.5W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN S SWELL.
.24 HOUR FORECAST WITHIN 01S97W TO 01S105W TO 03.4S115W TO
03.4S88W TO 01S97W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO
SW SWELL.
.48 HOUR FORECAST WITHIN 00N83W TO 01N93W TO 05N96W TO 05N100W
TO 02S106W TO 03.4S83W TO 00N83W...EXCEPT LEE OF GALAPAGOS
ISLANDS...WINDS 20 KT OR LESS. SEAS TO 2.5 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 28N114W TO 30N116W TO 28N115W TO
26N113W TO 26N112W TO 28N114W...INCLUDING SEBASTIAN VIZCAINO BAY
AND WITHIN 60 NM OF SHORE...NW WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0000 UTC WED APR 1...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 08N78W TO 06N90W. ITCZ FROM 06N90W TO 04N104W TO
06N124W TO BEYOND 05N140W. SECOND ITCZ FROM 03S89W TO 02N102W TO
BEYOND 03.4S120W. WIDELY SCATTERED MODERATE ISOLATED STRONG FROM
03N TO 08N BETWEEN 82W AND 98W. SCATTERED MODERATE FROM 03N TO
06N BETWEEN 102W AND 104W...FROM 02S TO 03.4S BETWEEN 113W AND
117.5W...AND FROM 02.5N TO 08N BETWEEN 136W AND 140W.
$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0000 UTC APR 01 2026.
24 HOUR FORECAST VALID 0000 UTC APR 02 2026.
48 HOUR FORECAST VALID 0000 UTC APR 03 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 22N140W 19N143W 15N145W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 25N144W 22N145W 14N147W.
.48 HOUR FORECAST NEW LOW NEAR 23N144W 1012MB. TROUGH FROM 26N143W
TO LOW TO 15N147W. WINDS 20 TO 25 KT FROM 28N TO 25N E OF 147W.
.TROUGH 07N172W 06N180W MOVING W SLOWLY. ISOLATED MODERATE TO
STRONG TSTMS S OF 08N W OF 173W.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.
.24 HOUR FORECAST NEW FRONT 30N177W 27N177W 24N180W.
.48 HOUR FORECAST FRONT WEAKENS TO TROUGH 30N175 27N176W.
.NE TO E WINDS 20 TO 25 KT W OF LINE 17N180W 14N168W 11N180W.
.24 HOUR FORECAST WINDS WEAKENED TO 20 KT OR LESS.
.48 HOUR FORECAST WINDS 20 KT OR LESS.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3.5 M IN AREA BOUNDED BY 30N162W 30N141W 10N164W
10N180W 21N180W 30N162W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 25N168W
25N161W 12N160W 08N180W 17N180W 25N168W. SEAS 2.5 TO 3 M N OF
LINE 30N176W 25N180W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 19N169W
12N160W 10N165W 13N172W 19N169W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 05N140W 06N144W 04N149W. ISOLATED MODERATE TSTMS WITHIN
120 NM OF ITCZ.
$$
.FORECASTER KINO. HONOLULU HI.=