HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC SUN APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 19.
24 HOUR FORECAST VALID 1800 UTC APR 20.
48 HOUR FORECAST VALID 1800 UTC APR 21.
.WARNINGS.
...STORM WARNING...
.LOW 57N180W 976 MB MOVING E 10 KT. FROM 53N TO 57N W OF 167W
WINDS 35 TO 50 KT. SEAS 5 TO 8 M. ELSEWHERE N OF 47N W OF 145W
WINDS 25 TO 35 KT. SEAS 3.5 TO 7 M. ALSO N OF 39N W OF 146W WINDS
TO 25 KT. SEAS 2.5 TO 5.5 M...HIGHEST N OF 44N.
.24 HOUR FORECAST LOW 59N170W 1001 MB. N OF 53N W OF 146W WINDS
20 TO 30 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST LOW WELL INLAND. ASSOCIATED CONDITIONS
DIMINISHED.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 44N137W 999 MB MOVING S 20 KT.
WITHIN 540 NM W SEMICIRCLE WINDS 25 TO 40 KT. SEAS 4.5 TO 8.5
M...HIGHEST NEAR 45N141W. ELSEWHERE FROM 31N TO 53N BETWEEN 127W
AND 152W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N133W 1007 MB. S
OF 48N BETWEEN 123W AND 155W WINDS 20 TO 30 KT. SEAS 2.5 TO 6
M...HIGHEST NEAR 35N138W.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N121W 1009 MB. S
OF 38N BETWEEN 120W AND 147W WINDS TO 25 KT. SEAS TO 3.5 M.
...GALE WARNING...
.12 HOUR FORECAST LOW W OF AREA NEAR 49N172E 991 MB. WITHIN 480
NM SE SEMICIRCLE WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M.
.24 HOUR FORECAST LOW W OF AREA NEAR 52N177E 991 MB. W OF A LINE
FROM 42N178E TO 52N168W TO 57N167W WINDS 25 TO 35 KT. SEAS 3 TO 5
M. ELSEWHERE S OF 57N W OF 156W WINDS LESS THAN 25 KT. SEAS TO 4
M IN MIXED SWELL.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 53N176W 979 MB. W
OF A LINE FROM 61N172W TO 51N158W TO 40N161W WINDS 25 TO 40 KT.
SEAS 3 TO 5.5 M.
.SYNOPSIS AND FORECAST.
.LOW 32N179W 1014 MB NEARLY STATIONARY. S OF 40N W OF 172W WINDS
20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW DISSIPATED. S OF 40N W OF 159W WINDS LESS
THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST S OF 38N BETWEEN 148W AND 168W WINDS LESS THAN
25 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST N OF 44N BETWEEN 128W AND 150W WINDS 20 TO 30
KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 33N180W 1003 MB. S OF 37N W OF 176W WINDS
20 TO 30 KT. SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 56N W OF 164W
AND FROM 46N TO 50N BETWEEN 130W AND 133W.
.24 HOUR FORECAST DENSE FOG N OF 55N W OF 157W.
.48 HOUR FORECAST DENSE FOG FROM 39N TO 56N BETWEEN 164W AND
179W...WITHIN 120 NM NW OF A LINE FROM 56N180W TO 58N169W TO
59N161W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
175W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF
176W.
.FORECASTER HYDE. 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 SUN APR 19.
24 HOUR FORECAST VALID 1800 UTC MON APR 20.
48 HOUR FORECAST VALID 1800 UTC TUE APR 21.
.WARNINGS.
...GALE WARNING...
.06 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 M.
.18 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
13N98W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N
TO NE WINDS 25 TO 30 KT...EXCEPT N OF 15N, N TO NE WINDS 30 TO
35 KT. SEAS 2.5 TO 3 M...EXCEPT N OF 15N 3 TO 4 M. WITHIN 14N95W
TO 14N96W TO 13N98W TO 13N96W TO 14N95W NE TO E WINDS 20 TO 25
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 12N99W TO 12N96W TO
13N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 30 KT...EXCEPT NE TO E 20 TO 25 KT BETWEEN 96W AND
99W. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N
TO NE WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.SYNOPSIS AND FORECAST.
.COLD FRONT FROM 30N131W TO 26N140W. WINDS LESS THAN 20 KT. SEAS
LESS THAN 2.5 M.
.18 HOUR FORECAST COLD FRONT FROM 30N129W TO 25N140W. W OF FRONT
...WITHIN 30N132W TO 30N140W TO 27N140W TO 29N135W TO 30N132W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW TO N SWELL.
.24 HOUR FORECAST COLD FRONT FROM 30N128W TO 26N134W AND
WEAKENING TO 24N140W. W OF FRONT...WITHIN 30N130W TO 30N140W TO
27N140W TO 28.5N135W TO 29N133W TO 30N130W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN NW TO N SWELL.
.48 HOUR FORECAST COLD FRONT FROM 30N122W TO 26N128W AND
DISSIPATING STATIONARY TO 23N140W. NW OF FRONT...WITHIN 30N122W
TO 30N140W TO 22N140W TO 25N131W TO 30N122W WINDS 20 KT OR LESS.
SEAS 2.5 TO 4 M IN NW TO N SWELL...HIGHEST N OF 28N W OF 128W.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 2015 UTC SUN APR 19...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 08N83W TO LOW PRES AT 04N95W 1011 MB
AND TO 04N106W. ITCZ EXTENDS FROM 04N106W TO 05N121W TO 05N132W
AND TO 05N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 180 NM
S OF THE ITCZ BETWEEN 125W AND 130W AND WITHIN 120 NM N OF THE
ITCZ BETWEEN 119W AND 122W. SCATTERED MODERATE WITHIN 30 NM OF
THE ITCZ BETWEEN 130W AND 132W.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC APR 19 2026.
24 HOUR FORECAST VALID 1800 UTC APR 20 2026.
48 HOUR FORECAST VALID 1800 UTC APR 21 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 23N170W 1014 MB MOVING E 15 KT. FRONT FROM LOW TO 25N165W
AND FROM LOW TO 20N172W 19N174W MOVING NE 15 KT.
.24 HOUR FORECAST LOW 27N163W 1014 MB. FRONT FROM LOW TO 28N158W
26N155W AND FROM LOW TO 25N170W. WINDS 20 TO 25 KT AND SEAS
2.5 TO 3 M N OF 27N BETWEEN 160W AND 155W.
.48 HOUR FORECAST LOW 27N152W 1016 MB. FRONT FROM LOW TO
23N143W 24N140W AND FROM LOW TO 26N158W. WINDS DIMINISHING TO
20 KT OR LESS. SEAS 2.5 TO 3 M N OF 26N BETWEEN 155W AND 150W.
.48 HOUR FORECAST NEW LOW 26N163W 1015 MB. FRONT FROM LOW TO
22N170W AND FROM LOW TO 25N160W.
.FRONT 26N140W 25N145W 26N153W MOVING SE 10 KT.
.24 HOUR FORECAST FRONT 23N140W 25N145W 24N150W.
.48 HOUR FORECAST FRONT MERGED WITH FRONT NEAR 23N143W.
.24 HOUR FORECAST NEW TROUGH 08N145W 05N147W MOVING W 10 KT.
.48 HOUR FORECAST TROUGH 08N152W 05N150W.
.48 HOUR FORECAST S WINDS 20 TO 30 KT N OF 27N W OF 178W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M N OF 27N W OF 177W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N145W 28N140W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N150W 26N150W
22N140W...AND N OF 27N W OF 178W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 02N180W 02N172W...AND 00N158W 04N150W 05N140W. SCATTERED
MODERATE TSTMS WITHIN 180 NM OF ITCZ BETWEEN 172W AND 165W AND
BETWEEN 148W AND 143W.
.NUMEROUS STRONG TSTMS FROM 22N TO 28N BETWEEN 167W AND 158W.
SCATTERED MODERATE TSTMS FROM 28N TO 30N BETWEEN 167W AND 155W.
$$
.FORECASTER PECHACEK. HONOLULU HI.=