HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC FRI MAR 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FROM APRIL 1 TO OCTOBER 15, DUE TO CLIMATOLOGY OF THE NORTH
PACIFIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 2.5 METERS OR
GREATER.
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 0000 UTC MAR 27.
24 HOUR FORECAST VALID 0000 UTC MAR 28.
48 HOUR FORECAST VALID 0000 UTC MAR 29.
.WARNINGS.
...GALE WARNING...
.FROM 35N TO 43N BETWEEN 124W AND 127W AREA OF N TO NW WINDS 25
TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST FROM 35N TO 46N BETWEEN 124W AND 130W AREA OF
N WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST FROM 37N TO 45N E OF 127W WINDS TO 25 KT. SEAS
TO 3 M.
...GALE WARNING...
.LOW 50N134W 1018 MB MOVING NE 30 KT. WITHIN 240 NM SE OF FRONT
FROM 52N130W TO LOW CENTER TO 47N138W WINDS 25 TO 40 KT. SEAS 3
TO 5 M.
.24 HOUR FORECAST LOW MOVED INLAND. ASSOCIATED CONDITIONS
DIMINISHED.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 40N158W 1017 MB MOVING SE 20 KT.
FROM 35N TO 45N BETWEEN 158W AND 165W AND WITHIN 300 NM N
QUADRANT WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 34N147W 1007 MB.
WITHIN 240 NM N AND 360 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS
2.5 TO 4.5 M. ELSEWHERE WITHIN 480 NM N SEMICIRCLE AND FROM 30N
TO 34N BETWEEN 137W AND 162W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 34N147W 1008 MB.
WITHIN 360 NM W AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 4 TO 6
M. ELSEWHERE S OF 43N BETWEEN 137W AND 160W WINDS 20 TO 30 KT.
SEAS 2.5 TO 5 M.
.SYNOPSIS AND FORECAST.
.LOW 55N135W 1009 MB MOVING NE 05 KT. FROM 52N TO 59N E OF 142W
WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 54N133W.
.24 HOUR FORECAST LOW 55N132W 1017 MB. ASSOCIATED CONDITIONS
DIMINISHED.
.LOW W OF AREA NEAR 50N167E 994 MB MOVING NE 15 KT. FROM 47N TO
58N W OF 176W WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW W OF AREA NEAR 55N171E 1000 MB. N OF 50N W
OF 170W AND FROM 41N TO 50N BETWEEN 169W AND 176W WINDS 20 TO 30
KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 52N174E.
.48 HOUR FORECAST LOW 58N179E 1006 MB. CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 49N W
OF 177W.
.24 HOUR FORECAST DENSE FOG W OF A LINE FROM 57N171W TO 45N174W
TO 41N177W.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 51N BETWEEN 167W AND
180W...AND N OF 55N BETWEEN 165W AND 174W.
.LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 53N165W TO
54N156W TO 59N148W TO 59N140W TO 56N135W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 54N160W TO 55N155W TO 60N149W TO 59N144W TO 59N139W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 56N156W TO 60N149W TO 60N144W.
.FORECASTER BANCROFT. 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 0000 UTC FRI MAR 27.
24 HOUR FORECAST VALID 0000 UTC SAT MAR 28.
48 HOUR FORECAST VALID 0000 UTC SUN MAR 29.
.WARNINGS.
...GALE WARNING...
.WITHIN 16N94.5W TO 16.5N94.5W TO 16N95W TO 15.5N95W TO 15N94.5W
TO 15.5N94.5W TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC...
N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 14N94W TO 16N94W TO
16N96W TO 14N97W TO 13N97W TO 13N95W TO 14N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 16N95W TO 15N96W TO 14N96W TO 14N95W TO
15N94W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 30 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 16N93W
TO 16N95W TO 15N97W TO 13N97W TO 13N95W TO 14N94W TO 16N93W N TO
NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA
WITHIN 13N95W TO 14N95W TO 13N97W TO 14N97W TO 12N97W TO 12N96W
TO 13N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE
SWELL.
.SYNOPSIS AND FORECAST.
.GALE FORCE LOW PRES W OF AREA. WITHIN 30N136W TO 30N140W TO
27N140W TO 29N137W TO 30N136W E TO SE WINDS 20 TO 25 KT. SEAS
2.5 TO 3.0 M. ELSEWHERE WITHIN 30N121W TO 30N136W TO 27N139W TO
26N140W TO 30N121W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MIXED SWELL.
.24 HOUR FORECAST LOW PRES WEAKENING NW OF AREA. WITHIN 30N139W
TO 30N140W TO 29.5N140W TO 30N139W SE TO S WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN 30N136W TO 30N139W TO
29N140W TO 27N140W TO 28N138W TO 30N136W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.09 HOUR FORECAST WITHIN 11N86W TO 11.5N86.5W TO 11.5N88W TO
10.5N88.5W TO 10.5N87.5W TO 10.5N86W TO 11N86W...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 0100 UTC FRI MAR 27...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 07.5N77.5W TO 05N88W. ITCZ FROM 05N88W TO 03.5N100W
TO 06N120W TO BEYOND 05N140W. SCATTERED MODERATE FROM 02N TO 06N
BETWEEN 87W AND 101W...FROM 05N TO 07N BETWEEN 110W AND
115.5W...
AND FROM 04N TO 07N BETWEEN 128W AND 136W. SIMILAR CONVECTION
FROM 10.5N TO 12N BETWEEN 110W AND 113W.
$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0000 UTC MAR 27 2026.
24 HOUR FORECAST VALID 0000 UTC MAR 28 2026.
48 HOUR FORECAST VALID 0000 UTC MAR 29 2026.
.WARNINGS.
...GALE WARNING...
.LOW 26N146W 1006 MB MOVING NNE 10 KT. TROUGH FROM 30N144W TO LOW
TO 15N147W MOVING N SLOWLY. WINDS 30 TO 35 KT WITHIN 150 NM NE
QUADRANT OF LOW. WINDS 20 TO 30 KT ELSEWHERE N OF 24N E OF 148W.
ISOLATED MODERATE TSTMS FROM 22N TO 28N BETWEEN 141W AND 146W.
.24 HOUR FORECAST LOW MOVED N OF AREA. TROUGH FROM 30N143W
19N144W.
WINDS EASED TO 20 KT OR LESS.
.48 HOUR FORECAST LOW MOVED N OF AREA. TROUGH FROM 28N140W 20N146W
13N155W.
.SYNOPSIS AND FORECAST.
.FRONT 30N159W 28N170W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT 30N150W 24N160W 23N165W. WINDS 20 TO 25 KT
N OF FRONT.
.48 HOUR FORECAST FRONT DISSIPATED. WINDS 20 TO 30 KT N OF 27N
BETWEEN 145W AND 165W.
.WINDS 20 TO 25 KT WINDS FROM 10N TO 21N W OF 165W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 10N TO 21N W OF 165W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 15N TO 27N W OF 160W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 3 TO 4 M N OF 26N BETWEEN 143W AND 147W. SEAS 2.5 TO 3.0 M
ELSEWHERE N OF 23S E OF 155W...AND FROM 10N TO 21N W OF 163W.
.24 HOUR FORECAST SEAS 2.5 TO 3.5 M N OF 27N E OF 164W. SEAS 2.5
TO 3 M FROM 09N TO 22N W OF 165W.
.48 HOUR FORECAST SEAS 3 TO 5 M N OF LINE 30N148W 26N160W 30N163W.
SEAS 2.5 TO 3 M ELSEWHERE N OF LINE 30N146W 22N160W 13N170W
10N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 04N140W 05N144W...AND FROM 11N148W 08N165W 06N176W. ISOLATED
MODERATE TSTMS WITHIN 180 NM S AND 90 NM N OF ITCZ W OF 148W...AND
WITHIN 120 NM OF ITCZ E OF 144W.
$$
.FORECASTER WROE. HONOLULU HI.=