HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC FRI APR 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 APR 03.
24 HOUR FORECAST VALID 1800 UTC APR 04.
48 HOUR FORECAST VALID 1800 UTC APR 05.
.WARNINGS.
...GALE WARNING...
.06 HOUR FORECAST NEW LOW W OF AREA 52N162E 989 MB. WITHIN 240 NM
NE AND E OF A LINE FROM 50N180W TO 54N169E WINDS 25 TO 35 KT.
SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER W OF AREA 56N165E
998 MB AND SECOND CENTER 49N172E 999 MB. WITHIN 360 NM NE AND E
OF A FRONT TO EXTEND FROM 56N172E TO 52N179E WINDS 25 TO 35 KT.
SEAS TO 4 M...HIGHEST NEAR 57N174E. ELSEWHERE WITHIN 300 NM E OF
A LINE EXTENDING FROM 52N178E TO 50N180W TO 44N180W WINDS 20 TO
30 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER W OF AREA 58N166E
1003 MB AND SECOND CENTER 57N178E 1002 MB. WITHIN 360 NM NE
QUADRANT WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE WITHIN 360 NM
E OF A FRONT TO EXTEND FROM 57N177W TO 50N174W WINDS 20 TO 30 KT.
SEAS TO 3 M.
...GALE WARNING...
.42 HOUR FORECAST NEW LOW 39N174W 1007 MB. FROM 30N TO 45N
BETWEEN 168W AND 180W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW 40N172W 1000 MB. FROM 35N TO 45N BETWEEN
164W AND 180W WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM
30N TO 47N BETWEEN 162W AND 180W WINDS 20 TO 30 KT. SEAS TO 4 M.
...GALE WARNING...
.42 HOUR FORECAST NEW LOW 38N144W 1010 MB. WITHIN 300 NM W AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 38N145W 1009 MB. WITHIN 300 NM NW
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE FROM 33N TO
46N BETWEEN 140W AND 152W WINDS 20 TO 30 KT. SEAS TO 3 M.
...GALE WARNING...
.48 HOUR FORECAST LOW 55N137W 1011 MB. WITHIN 240 NM E AND 90 NM
N QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.LOW 47N166W 1014 MB MOVING SE 15 KT. FROM 45N TO 52N BETWEEN
171W AND 175E WINDS TO 25 KT. SEAS TO 3.5 M.
.06 HOUR FORECAST LOW ABSORBED. CONDITIONS DESCRIBED IN WARNINGS
SECTION ABOVE WITH LOW 52N162E.
.FROM 36N TO 43N BETWEEN 124W AND 127W AREA OF N WINDS 20 TO 30
KT. SEAS TO 3.5 M.
.24 HOUR FORECAST FROM 40N TO 44N BETWEEN 124W AND 128W AREA OF N
TO NE WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 54N TO 57N
BETWEEN 144W AND 147W.
.24 HOUR FORECAST DENSE FOG N OF 59N BETWEEN 140W AND 147W...AND
FROM 55N TO 57N BETWEEN 180W AND 171E.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 58N BETWEEN 133W AND
141W...N OF 59N BETWEEN 144W AND 153W...AND N OF A LINE FROM
52N170W TO 57N174E.
.LIGHT FREEZING SPRAY N OF A LINE FROM 59N150W TO 53N161W TO
53N168W TO 54N174W TO 58N178E.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 59N150W
TO 55N154W TO 52N161W TO 54N167W TO 59N180W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 59N150W
TO 54N154W TO 54N166W...AND N OF A LINE FROM 58N175W TO 60N180W.
.FORECASTER HUFFMAN. 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 FRI APR 03.
24 HOUR FORECAST VALID 1800 UTC SAT APR 04.
48 HOUR FORECAST VALID 1800 UTC SUN APR 05.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.SURFACE TROUGH FROM 28N134W TO 27N140W. N OF TROUGH WINDS 20 KT
OR LESS. SEAS 2.5 TO 3 M IN NW SWELL. S OF TROUGH TO 26N BETWEEN
134W AND 135.5W S TO SW WINDS 20 TO 25 KT. SEAS 2.5 M.
.18 HOUR FORECAST SURFACE TROUGH FROM 30N137W TO 27N140W. WINDS
20 KT OR LESS. SEAS LESS THAN 2.5 M.
.S OF 06N BETWEEN 80W AND 90W...FROM 05N TO 11N BETWEEN 90W AND
100W...AND S OF 10N BETWEEN 100W AND 120W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN S SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST N OF 29N BETWEEN 120W AND 124W WINDS 20 KT OR
LESS. SEAS 2.5 M IN NW SWELL.
.18 HOUR FORECAST N OF 28N BETWEEN 119W AND 122W WINDS 20 KT OR
LESS. SEAS 2.5 M IN MIXED NW AND S SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST FROM 10.5N TO 11.5N E OF 88W...INCLUDING THE
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5
M.
.48 HOUR FORECAST 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 2100 UTC FRI APR 3...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS SOUTHWESTWARD FROM 09N84W TO 06N96W. THE
ITCZ CONTINUES FROM 06N96W TO 05N110W TO 04N133W. A SECOND ITCZ
IS MAINLY SOUTH OF THE EQUATOR AND RUNS FROM 00N85W TO 04S105W
TO
BEYOND 03S120W. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE
NOTED FROM 04N TO 10N BETWEEN 83W AND 88W. SIMILAR CONVECTIVE IS
SEEN NEAR THE WESTERN END OF THE ITCZ FROM 02N TO 05N BETWEEN
133W AND 136W.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC APR 03 2026.
24 HOUR FORECAST VALID 1800 UTC APR 04 2026.
48 HOUR FORECAST VALID 1800 UTC APR 05 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 23N144W 1014 MB MOVING N SLOWLY. TROUGH 26N140W TO LOW TO
20N145W MOVING N 10 KT.
.24 HOUR FORECAST LOW NEAR 24N144W 1015 MB. TROUGH 29N140W TO LOW
TO 17N145W.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 30N143W 24N144W.
.FRONT 30N175W TO 25N180W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N179W 24N180W.
.48 HOUR FORECAST TROUGH MERGED WITH NEW FRONT 30N173W 23N180W.
.48 HOUR FORECAST NEW TROUGH 22N141W 16N145W.
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 13N TO 07N W OF 150W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 14N TO 09N W OF 160W.
.48 HOUR FORECAST SEAS 2.5 M OR LOWER ENTIRE AREA.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ISOLATED MODERATE TSTMS FROM 12N TO 07N W OF 177W.
.ITCZ 05N149W 06N160W 06N173W. ISOLATED MODERATE TSTMS WITHIN 180
NM N OF ITCZ.
$$
.FORECASTER ALMANZA. HONOLULU HI.=