HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC WED APR 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 15.
24 HOUR FORECAST VALID 1200 UTC APR 16.
48 HOUR FORECAST VALID 1200 UTC APR 17.
.WARNINGS.
...GALE WARNING...
.WITHIN 180 NM OF CALIFORNIA COAST FROM 32N TO 39N WINDS TO 25
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 300 NM OF CALIFORNIA COAST FROM 33N TO
41N WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.30 HOUR FORECAST FROM 35N TO 40N E OF 126W WINDS 25 TO 35 KT.
SEAS 3 TO 4 M.
.48 HOUR FORECAST S OF 44N BETWEEN 119W AND 128W WINDS TO 25 KT.
SEAS 2.5 TO 4 M.
...GALE WARNING...
.48 HOUR FORECAST LOW W OF AREA NEAR 48N171E 981 MB. FROM 40N TO
52N W OF 174W WINDS 25 TO 35 KT. SEAS TO 3.5 M.
.SYNOPSIS AND FORECAST.
.LOW 51N129W 1007 MB MOVING SE 15 KT. FROM 41N TO 56N E OF 143W
WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW JUST INLAND NEAR 48N124W 1019 MB. FROM 41N
TO 51N E OF 133W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS
DIMINISHED.
.COMPLEX LOW WITH MAIN CENTER NW OF AREA NEAR 58N173E MOVING SW
10 KT. FROM 47N TO 55N W OF 172W...AND N OF 60N W OF 177W WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 58N170W 1001
MB. FROM 43N TO 55N W OF 168W...AND NW OF A LINE FROM 57N175E TO
60N175W WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 58N165W 1009 MB. FROM 46N TO 52N BETWEEN
162W AND 175W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.LOW 39N161W 1011 MB MOVING NE 20 KT. WITHIN 240 NM NE OF A LINE
FROM 37N153W TO 41N162W WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 43N151W 1012 MB. WITHIN 420 NM NE
SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 47N145W 1009 MB. WITHIN 240 NM NE OF A LINE
FROM 40N135W TO 46N139W TO 47N144W WINDS 20 TO 30 KT. SEAS TO 3
M.
.LOW 59N152W 1009 MB MOVING E 15 KT. FROM 54N TO 59N BETWEEN 149W
AND 161W WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS
DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 53N W OF
174W...FROM 47N TO 50N BETWEEN 162W AND 166W...AND WITHIN 120 NM
NE OF A LINE FROM 37N156W TO 39N157W TO 41N164W.
.24 HOUR FORECAST DENSE FOG N OF 56N W OF 173W...AND FROM 39N TO
44N BETWEEN 143W AND 152W.
.48 HOUR FORECAST DENSE FOG N OF 55N BETWEEN 139W AND 147W...FROM
44N TO 47N BETWEEN 140W AND 147W...AND WITHIN 60 NM N OF A LINE
FROM 57N177W TO 56N178E.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 59N W OF
176W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
176W.
.FORECASTER POCHE. 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 WED APR 15.
24 HOUR FORECAST VALID 1200 UTC THU APR 16.
48 HOUR FORECAST VALID 1200 UTC FRI APR 17.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 11N86W TO 11N87W TO 10N89W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.15 HOUR FORECAST CONDITIONS IMPROVE.
.WITHIN 03S98W TO 02S101W TO 02S103W TO 03.4S102W TO 03.4S98W TO
03S98W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.09 HOUR FORECAST CONDITIONS IMPROVE.
.36 HOUR FORECAST WITHIN 31N114W TO 30N115W TO 30N114W TO
30N113W TO 31N114W...INCLUDING THE GULF OF CALIFORNIA...S WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE.
.39 HOUR FORECAST WITHIN 30N120W TO 30N126W TO 29N123W TO
29N121W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
.48 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WITHIN 22N109W TO 23N109W TO 23N110W TO
21N110W TO 21N109W TO 22N109W NW WINDS 20 TO 25 KT. SEAS LESS
THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC WED APR 15...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH EXTENDS FROM 08N82W TO 04N101W TO 04N120W. ITCZ
EXTENDS FROM 04N120W TO 05N132W TO 04N140W. SOUTHERN HEMISPHERIC
ITCZ EXTENDS FROM 03S113W TO 03S120W. NUMEROUS MODERATE TO
STRONG FROM 02N TO 06N BETWEEN 85W AND 101W. SCATTERED MODERATE
ISOLATED STRONG S OF 02N BETWEEN 86W AND 98W AND FROM 02N TO 10N
BETWEEN 111W AND 140W.
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC APR 15 2026.
24 HOUR FORECAST VALID 1200 UTC APR 16 2026.
48 HOUR FORECAST VALID 1200 UTC APR 17 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 30N161W 22N162W THENCE TROUGH 12N174W MOVING E 10 KT.
.24 HOUR FORECAST FRONT 30N152W 24N158W THENCE TROUGH 18N168W.
.48 HOUR FORECAST FRONT 30N152W 24N157W THENCE TROUGH 22N160W.
.TROUGH 30N162W 23N168W MOVING NE 10 KT.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT ABOVE.
.TROUGH 12N163W 10N164W 08N163W MOV E SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 240 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH 12N160W 10N162W 08N162W.
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.
.SEAS 2.5 M OR LOWER OVER ENTIRE FORECAST AREA.
.ITCZ 04N140W 03N151W 05N162W 05N173W. ISOLATED MODERATE TSTMS
WITHIN 120 NM N OF ITCZ E OF 151W.
$$
.FORECASTER M BALLARD. HONOLULU HI.=