HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SUN MAR 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAR 29.
24 HOUR FORECAST VALID 1200 UTC MAR 30.
48 HOUR FORECAST VALID 1200 UTC MAR 31.
.WARNINGS.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 33N148W 1007 MB MOVING NE 15 KT.
WITHIN 540 NM W QUADRANT AND 300 NM NW OF A LINE FROM 34N152W TO
39N137W WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ELSEWHERE WITHIN 720 NM
W QUADRANT AND WITHIN 480 NM NW OF A LINE FROM 30N151W TO 36N146W
TO 40N134W WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 34N140W 1011 MB.
FROM 38N TO 42N BETWEEN 129W AND 140W WINDS 25 TO 35 KT. SEAS TO
3.5 M. ELSEWHERE S OF 38N BETWEEN 146W AND 158W AND WITHIN 300 NM
NW OF A LINE FROM 32N146W TO 37N139W TO 39N130W WINDS 20 TO 30
KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST COMBINED LOW 38N133W 1015 MB. S OF 34N BETWEEN
143W AND 157W WINDS TO 25 KT. SEAS TO 3 M.
...GALE WARNING...
.LOW 53N162W 1009 MB MOVING E 20 KT. FROM 44N TO 55N BETWEEN 152W
AND 162W WINDS 25 TO 35 KT. SEAS TO 3.5 M. ELSEWHERE FROM 43N TO
50N BETWEEN 162W AND 170W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 54N150W 1002 MB. WITHIN 240 NM E OF FRONT
FROM 53N149W TO 47N153W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
ELSEWHERE FROM 43N TO 54N BETWEEN 141W AND 155W AND FROM 41N TO
49N BETWEEN 155W AND 170W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 54N144W 992 MB. FROM 44N TO 60N BETWEEN
131W AND 155W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE
FROM 40N TO 47N BETWEEN 155W AND 165W WINDS TO 25 KT. SEAS TO 3
M.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 47N TO 58N
BETWEEN 154W AND 165W...FROM 44N TO 49N W OF 165W...AND N OF 58N
W OF 174W.
.24 HOUR FORECAST DENSE FOG FROM 46N TO 57N BETWEEN 133W AND
154W...N OF 54N BETWEEN 152W AND 162W...AND FROM 43N TO 49N W OF
158W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 59N BETWEEN 133W AND 151W
AND FROM 45N TO 49N BETWEEN 161W AND 178W.
.LIGHT FREEZING SPRAY WITHIN 60 NM S OF ALASKAN COAST BETWEEN
136W AND 152W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.FORECASTER JOSEPH. 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 SUN MAR 29.
24 HOUR FORECAST VALID 1200 UTC MON MAR 30.
48 HOUR FORECAST VALID 1200 UTC TUE MAR 31.
.WARNINGS.
...GALE WARNING...
.WITHIN 15N94W TO 16N95W TO 15N96W TO 13N96W TO 13N95W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
35 KT. SEAS TO 5.0 M. ELSEWHERE WITHIN 13N94W TO 16N94W TO
16N95W TO 13N98W TO 11N97W TO 12N95W TO 13N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 4.5 M IN N TO NE SWELL. REMAINDER OF AREA
WITHIN 15N94W TO 15N96W TO 14N99W TO 11N101W TO 10N98W TO 12N94W
TO 15N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE
SWELL.
.09 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 13N98W TO 11N102W
TO 11N98W TO 13N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...NE WINDS 20 TO 30 KT. SEAS TO 3.5 M. ELSEWHERE
WITHIN 15N94W TO 11N98W TO 15N96W TO 11N103W TO 08N99W TO 11N94W
TO 15N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE
SWELL.
.12 HOUR FORECAST WITHIN 16N94.5W TO 16N95W TO 15.5N95.5W TO
15N95.5W TO 15N95W TO 15.5N94.5W TO 16N94.5W...INCLUDING THE GULF
OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO 16N94W N
TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M IN N TO NE SWELL.
.18 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 15N96W TO 14N97W TO
13N96W TO 14N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS TO 4.0 M.
ELSEWHERE WITHIN 15N94W TO 11N105W TO 08N101W TO 07N96W TO 08N94W
TO 10N95W TO 15N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N
TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 13N97W TO 13N96W TO
14N95W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 15N94W TO
14N96W TO 15N95W TO 14N97W TO 13N97W TO 14N94W TO 15N94W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL. WITHIN 11N99W TO
12N103W TO 11N106W TO 07N102W TO 06N97W TO 08N95W TO 11N99W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.SYNOPSIS AND FORECAST.
.WITHIN 11N86W TO 11N87W TO 10N88W TO 09N90W TO 09N90W TO 09N88W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 30
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 09N91W TO 09N90W TO
10N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E
WINDS 20 TO 30 KT. SEAS TO 3.0 M IN MERGING NE AND S SWELL.
.48 HOUR FORECAST WITHIN 11N86W TO 11N87.5W TO 10.5N90W TO
10N90W TO 10.5N87.5W TO 10N87W TO 11N86W...INCLUDING THE GULF OF
PAPAGAYO... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC SUN MAR 29...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A SURFACE TROUGH EXTENDS FROM 10N74.5W TO 09N80W TO 03N95W. ITCZ
EXTENDS FROM 03N96W TO 02.5N103W TO 06N132W TO BEYOND 06N140W. A
SOUTHERN HEMISPHERIC ITCZ IS FROM 03.4S90W TO 03S102W TO BEYOND
03S120W. SCATTERED MODERATE ISOLATED STRONG CONVECTION FROM 03N
TO 06.5N BETWEEN 83W AND 92W...AND FROM 04.5N TO 06.5N BETWEEN
128W AND 140W.
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC MAR 29 2026.
24 HOUR FORECAST VALID 1200 UTC MAR 30 2026.
48 HOUR FORECAST VALID 1200 UTC MAR 31 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 26N140W 22N142W THENCE TROUGH 16N147W. FRONT MOVING E 10 KT
AND TROUGH NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 150
NM
OF FRONT AND TROUGH.
.24 HOUR FORECAST FRONT MOVED E OF AREA. TROUGH 24N140W 18N144W.
.48 HOUR FORECAST TROUGH 23N140W 15N147W.
.FRONT 30N142W 27N143W MOVING NE 10 KT.
.24 HOUR FORECAST FRONT MOVED N OF AREA.
.TROUGH 30N146W 28N147W 25N150W MOVING ENE 10 KT.
.24 HOUR FORECAST TROUGH 30N144W 26N146W 24N150W.
.48 HOUR FORECAST TROUGH MOVED N OF AREA.
.TROUGH 15N155W 12N160W 10N170W 07N175W 04N180W MOVING W SLOWLY W
OF 165W AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS
FROM 13N TO 08N BETWEEN 158W AND 150W...AND S OF 08N W OF 172W.
.24 HOUR FORECAST TROUGH 12N162W 10N170W 06N180W.
.48 HOUR FORECAST TROUGH 08N172W 05N180W.
.WINDS 20 TO 30 KT N OF 25N BETWEEN 162W AND 145W. WINDS 20 TO 25
KT ELSEWHERE FROM 15NTO 25N BETWEEN 160W AND 179W.
.24 HOUR FORECAST WINDS 20 TO 30 KT N OF 25N BETWEEN 150W AND
160W.
WINDS 20 TO 25 KT FROM 14N TO 25N W OF 160W.
.48 HOUR FORECAST WINDS 20 TO 25 KT W OF LINE 20N180W 20N168W
14N167W 10N180W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 4 TO 6 M N OF 27N BETWEEN 159W AND 151W. SEAS 2.5 TO 4 M
ELSEWHERE N OF LINE 30N145W 10N180W.
.24 HOUR FORECAST SEAS 4 TO 5 M N OF 29N BETWEEN 155W AND 150W.
SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N144W 20N148W 09N180W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N143W 15N150W
10N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 06N140W 04N152W.
$$
.FORECASTER M BALLARD. HONOLULU HI.=