HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC SUN APR 05 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 05.
24 HOUR FORECAST VALID 0600 UTC APR 06.
48 HOUR FORECAST VALID 0600 UTC APR 07.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER W OF AREA 55N174E 1000 MB MOVING
NE 10 KT. FRONT EXTENDS FROM 40N176W TO 52N179W TO 57N174E.
WITHIN 300 NM NE AND E OF FRONT N OF 52N WINDS 25 TO 35 KT. SEAS
TO 4 M.
ELSEWHERE WITHIN 360 NM NE AND E OF ENTIRE FRONT WINDS 20 TO 30
KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N178E 996 MB
WITH A FRONT FORECAST TO EXTEND FROM 50N170W TO 57N175W TO
58N178E. WITHIN 240 NM NE AND E FRONT N OF 57N...AND FROM 50N TO
56N BETWEEN 160W AND 170W WINDS 25 TO 35 KT. SEAS TO 4 M.
ELSEWHERE WITHIN 420 NM NE AND E OF ENTIRE FRONT WINDS 20 TO 30
KT. SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N170W 992 MB.
FROM 48N TO 57N BETWEEN 150W AND 160W WINDS 25 TO 35 KT. SEAS 3
TO 5 M. ELSEWHERE BETWEEN 120 NM AND 420 NM N SEMICIRCLE...AND
WITHIN AN AREA BOUNDED BY 53N180W TO 57N163W TO 59N150W TO
49N149W TO 44N157W TO 49N161W TO 37N180W TO 53N180W WINDS 20 TO
30 KT. SEAS TO 4 M.
...GALE WARNING...
.LOW 33N175W 1012 MB MOVING NE 20 KT. FROM 30N TO 43N BETWEEN
175W AND 180W WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 43N167W 1006 MB. WITHIN 420 NM N AND NE
QUADRANTS...AND FROM 32N TO 43N BETWEEN 160W AND 176W WINDS 25
TO 35 KT. SEAS 3 TO 5 FT. ELSEWHERE FROM 30N TO 50N BETWEEN
158W AND 180W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 57N170W
DESCRIBED ABOVE.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 35N148W 1013 MB MOVING E 10 KT.
WITHIN 360 NM W AND SW...AND 600 NM N AND NW QUADRANTS WINDS
TO 25 KT. SEAS TO 2.5 M.
.12 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 36N144W 1008 MB.
WITHIN 240 NM W AND SW...AND 540 NM N AND NW QUADRANTS WINDS
25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMBINED LOW 35N142W 1003 MB. BETWEEN 120
NM AND 300 NM NE QUADRANT...WITHIN 180 NM SE QUADRANT...AND
FROM 32N TO 45N BETWEEN 142W AND 151W WINDS 25 TO 35 KT. SEAS
3 TO 5 M. ELSEWHERE FROM 31N TO 46N BETWEEN 135W AND 152W
WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 36N140W 1006 MB. FROM 31N TO 46N BETWEEN
131W AND 149W WINDS 20 TO 30 KT. SEAS TO 4 M.
...GALE WARNING...
.LOW 50N140W 1016 MB MOVING NE 20 KT WILL SLOW AND BECOME
NEARLY STATIONARY BY 24 HOURS...THEN MOVE SE BY 36 HOURS.
WITHIN 120 NM OF LOW CENTER...EXCEPT 360 NM NE QUADRANT...
WINDS TO 25 KT. SEAS TO 2.5 M.
.12 HOUR FORECAST LOW 55N137W 1012 MB. WITHIN 120 NM E
AND NE SEMICIRCLES WINDS 25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 57N138W 1008 MB. FROM 51N TO 58N
BETWEEN 131W AND 149W WINDS 20 TO 30 KT. SEAS TO 3 M.
.36 HOUR FORECAST LOW 56N136W 1010 MB. WITHIN 180 NM SW
SEMICIRCLE WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW ABSORBED BY A LOW INLAND OVER SW CANADA.
WITHIN 120 NM E OF A LINE FROM 48N128W TO 55N136W NW WINDS 25
TO 35 KT. SEAS TO 4 M. ELSEWHERE E OF A LINE FROM 46N128W TO
52N137W TO 58N140W NW WINDS 20 TO 30 KT. SEAS TO 3 M.
...GALE WARNING...
.36 HOUR FORECAST NEW LOW 36N165W 1010 MB. WITHIN 180 NM OF
LOW CENTER...EXCEPT SE QUADRANT...WINDS 25 TO 35 KT. SEAS TO
4 M.
.48 HOUR FORECAST LOW 36N164W 1013 MB. WITHIN 240 NM N
SEMICIRCLE...360 NM SE AND 180 NM SW QUADRANTS WINDS TO 25
KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 57N
BETWEEN 139W AND 153W...FROM 44N TO 51N BETWEEN 174W AND
179W...AND FROM 54N TO 59N W OF 168W.
.24 HOUR FORECAST DENSE FOG FROM 53N TO 59N BETWEEN 131W
AND 142W...AND FROM 53N TO 61N W OF 163W.
.48 HOUR FORECAST DENSE FOG FROM 53N TO 62N W OF 151W.
.LIGHT FREEZING SPRAY N OF A LINE FROM 57N152W TO 54N159W
TO 55N165W TO 59N180W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM
57N153W TO 58N174W TO 60N178W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 59N BETWEEN
151W AND 153W...AND N OF 59N W OF 175W.
.FORECASTER MILLS. 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 0600 UTC SUN APR 5.
24 HOUR FORECAST VALID 0600 UTC MON APR 6.
48 HOUR FORECAST VALID 0600 UTC TUE APR 7.
.WARNINGS.
...GALE WARNING...
.09 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N
WINDS 20 TO 25 KT. SEAS 2.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS 2.5 M.
.27 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 15N94W TO 16N94W TO
16N95W TO 15N96W TO 13N96W TO 12N95W TO 15N94W N WINDS 20 TO 30
KT. SEAS 2.5 M.
.48 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT.
SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO 14N97W
TO 13N97W TO 13N95W TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30
KT. SEAS 2.5 TO 3.5 M.
.SYNOPSIS AND FORECAST.
.WITHIN 12N86W TO 11N88W TO 10N88W TO 10N87W TO 10N86W TO 11N86W
TO 12N86W...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.
.WITHIN 10N120W TO 14N123W TO 14N127W TO 10N133W TO 06N129W TO
07N120W TO 10N120W WINDS 20 KT OR LESS. SEAS 2.5 M IN E TO SE
SWELL.
.24 HOUR FORECAST WITHIN 11N121W TO 14N130W TO 13N134W TO
10N134W TO 09N130W TO 08N122W TO 11N121W WINDS 20 KT OR LESS.
SEAS 2.5 M IN E SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 26N117W TO 25N120W TO 24N121W TO 23N121W TO 22N118W TO
24N116W TO 26N117W WINDS 20 KT OR LESS. SEAS 2.5 M IN NW TO N
SWELL.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 30N137W TO 30N140W TO 28N140W TO
28N139W TO 30N137W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0900 UTC SUN APR 5...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N83W TO 06N98W. ITCZ FROM 06N98W TO BEYOND
04N140W. SECOND ITCZ FROM 08S87W TO BEYOND 05S140W. SCATTERED
MODERATE FROM 01N TO 08N W OF 120W.
$$
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0600 UTC APR 05 2026.
24 HOUR FORECAST VALID 0600 UTC APR 06 2026.
48 HOUR FORECAST VALID 0600 UTC APR 07 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 30N178W 28N180W MOVING E 10 KT.
.24 HOUR FORECAST FRONT 30N168W 24N171W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N163W
24N163W.
.FRONT 30N157W 29N160W 30N164W MOVING S 10 KT.
.24 HOUR FORECAST FRONT DISSIPATED.
.TROUGH 30N174W 23N178W MOVING E SLOWLY.
.24 HOUR FORECAST TROUGH 30N168W 21N141W 18N141W.
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF A LINE 30N175E
28N180W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF A LINE 30N165W
19N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 03N140W 02N154W...AND 06N175W 06N180W. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF ITCZ.
$$
.FORECASTER THOMAS. HONOLULU HI.=