HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SAT APR 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC APR 04.
24 HOUR FORECAST VALID 1200 UTC APR 05.
48 HOUR FORECAST VALID 1200 UTC APR 06.
.WARNINGS.
...GALE WARNING...
.LOW W OF AREA 55N165E 994 MB MOVING NE 10 KT. WITHIN 360 NM NE
AND E OF A FRONT EXTENDING FROM 55N170E TO 50N176E WINDS 25 TO 35
KT. SEAS TO 4 M. ELSEWHERE FROM 43N TO 50N BETWEEN 176W AND 180W
WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER W OF AREA 58N167E
1002 MB AND SECOND CENTER 55N177E 1003 MB. WITHIN 240 NM NE AND E
OF A FRONT TO EXTEND FROM 57N176E TO 54N177W TO 50N175W WINDS 25
TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER NW OF AREA
58N175E AND NEW SECOND CENTER 54N174E 994 MB. N OF A LINE FROM
57N173W TO 59N179E...AND FROM 47N TO 56N BETWEEN 159W AND 170W
WINDS 25 TO 35 KT. SEAS TO 4 M.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW 36N173W 1007 MB. FROM 30N TO 43N
BETWEEN 168W AND 180W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW 40N169W 994 MB. WITHIN 240 NM W QUADRANT
WINDS 35 TO 45 KT. SEAS 4.5 TO 7 M. ELSEWHERE FROM 33N TO 47N
BETWEEN 158W AND 178W WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW 35N147W 1011 MB. WITHIN 300 NM W OF A
FRONT TO EXTEND FROM 44N142W TO 36N144W TO THE LOW TO 31N149W
WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.36 HOUR FORECAST LOW 36N144W 1006 MB. FROM 31N TO 44N BETWEEN
143W AND 150W WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 36N143W 1004 MB. FROM 32N TO 44N BETWEEN
134W AND 150W WINDS 25 TO 35 KT. SEAS TO 4 M.
...GALE WARNING...
.24 HOUR FORECAST LOW 53N137W 1015 MB. WITHIN 240 NM NE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 57N138W 1006 MB. WITHIN 420 NM SW
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.FROM 38N TO 45N BETWEEN 124W AND 128W AREA OF N TO NE WINDS TO
25 KT. SEAS TO 3 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 55N TO 56N
BETWEEN 171E AND 177E.
.24 HOUR FORECAST DENSE FOG N OF 58N BETWEEN 143W AND
151W...WITHIN 60 NM EITHER SIDE OF A LINE FROM 43N174W TO
52N176W...AND FROM 54N TO 59N BETWEEN 168W AND 176E.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 52N128W TO
56N141W...N OF A LINE FROM 54N159W TO 54N172W TO 58N177E...AND
FROM 52N TO 55N BETWEEN 178W AND 168E.
.LIGHT FREEZING SPRAY N OF A LINE FROM 59N151W TO 56N153W TO
52N162W TO 54N170W TO 59N179E.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 59N151W
TO 54N153W TO 54N160W TO 57N172W TO 60N179W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 59N151W
TO 56N155W...AND N OF A LINE FROM 59N175W TO 60N179W.
.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 1200 UTC SAT APR 04.
24 HOUR FORECAST VALID 1200 UTC SUN APR 05.
48 HOUR FORECAST VALID 1200 UTC MON APR 06.
.WARNINGS.
...GALE WARNING...
.42 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS 2.5 M.
.48 HOUR FORECAST N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 2.5 TO 3.5
M.
ELSEWHERE WITHIN 45 NM OF A LINE FROM 16N95W TO 12.5N95.5W N
WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M.
.SYNOPSIS AND FORECAST.
.N OF 28N BETWEEN 120W AND 123W WINDS 20 KT OR LESS. SEAS 2.5 M
IN MIXED NW AND S SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.S OF 10N E OF 110W...EXCEPT IN THE LEE OF THE GALAPAGOS
ISLANDS...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.
.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 LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC SAT APR 4...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM 08N78W TO 05N96W. THE ITCZ
STRETCHES FROM 05N96W TO 07N115W TO 04N140W. A SECOND ITCZ IS
SOUTH OF THE EQUATOR AND RUNS FROM 03S86W TO 03S110W TO BEYOND
02S120W. SCATTERED MODERATE CONVECTION IS OBSERVED FROM 02N TO
08N BETWEEN 115W AND 130W.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC APR 04 2026.
24 HOUR FORECAST VALID 1200 UTC APR 05 2026.
48 HOUR FORECAST VALID 1200 UTC APR 06 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 27N140W 25N144W 20N146W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 30N142W 25N144W 18N144W.
.48 HOUR FORECAST NEW FRONT 27N140W 26N142W THENCE TROUGH 21N142W.
.TROUGH 30N175W 28N180W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH MERGED WITH NEW FRONT 30N173W 25N177W.
.48 HOUR FORECAST FRONT 30N166W 23N173W.
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 13N TO 09N W OF 155W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 14N TO 10N W OF 165W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N171W 22N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ISOLATED MODERATE TSTMS WITHIN 90 NM OF POINT 06N141W.
.ITCZ 07N155W 07N170W 07N180W. ISOLATED MODERATE TSTMS WITHIN 300
NM N OF ITCZ.
$$
.FORECASTER WROE. HONOLULU HI.=