North Pacific High Seas Forecast

FZPN01 KWBC 290935
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1030 UTC SUN MAR 29 2026 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC MAR 29. 
24 HOUR FORECAST VALID 0600 UTC MAR 30. 
48 HOUR FORECAST VALID 0600 UTC MAR 31. 

.WARNINGS. 

...GALE WARNING... 
.COMPLEX LOW WITH MAIN CENTER 32N149W 1007 MB MOVING E 10 KT. 
BETWEEN 120 NM AND 420 NM W AND BETWEEN 180 NM AND 540 NM N 
QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE S OF A 
LINE FROM 44N149W TO 38N164W AND FROM 35N TO 46N BETWEEN 137W 
AND 149W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. 
.24 HOUR FORECAST COMBINED LOW 33N144W 1010 MB. WITHIN 360 NM NW 
OF A LINE FROM 39N134W TO 30N149W WINDS 25 TO 35 KT. SEAS 3 TO 5 
M...HIGHEST NW AND W OF LOW. ELSEWHERE FROM 37N TO 44N BETWEEN 
129W AND 143W...WITHIN 480 NM NW AND W OF THE SAME LINE AND S OF 
A LINE FROM 41N145W TO 30N168W WINDS 20 TO 30 KT. SEAS 2.5 TO 
4.5 M...HIGHEST W OF LOW. 
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 35N135W 1012 
MB. S OF A LINE FROM 38N138W TO 30N166W WINDS TO 25 KT. SEAS TO 
4 M...HIGHEST NEAR 30N151W.

...GALE WARNING... 
.LOW 52N166W 1010 MB MOVING NE 25 KT. FRONT EXTENDS FROM LOW TO 
47N168W TO 45N180W. WITHIN 180 NM NE AND 360 NM SE AND S 
QUADRANTS AND WITHIN 300 NM SE AND S OF FRONT WINDS 20 TO 30 KT. 
SEAS TO 3.5 M...HIGHEST SE OF LOW. 
.06 HOUR FORECAST LOW 53N162W 1009 MB. FROM 45N TO 52N BETWEEN 
153W AND 161W WINDS 25 TO 35 KT. SEAS 3 TO 4 M. 
.24 HOUR FORECAST LOW 54N151W 1002 MB. WITHIN 240 NM SE AND 360 
NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M. 
.48 HOUR FORECAST LOW 55N145W 995 MB. FROM 46N TO 59N BETWEEN 
132W AND 141W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE N 
OF 42N BETWEEN 130W AND 155W AND WITHIN 840 NM S QUADRANT WINDS 
20 TO 30 KT. SEAS TO 4 M...HIGHEST NEAR 48N141W. 

.SYNOPSIS AND FORECAST. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 49N BETWEEN 
158W AND 168W...N OF 57N W OF 168W...AND W OF A LINE FROM 
49N168W TO 44N180W. 
.24 HOUR FORECAST DENSE FOG BETWEEN 155W AND A LINE FROM 59N138W 
TO 47N148W...FROM 48N TO 50N BETWEEN 154W AND 160W...N OF A LINE 
FROM 56N157W TO 59N175W...AND WITHIN 180 NM N OF A LINE FROM 
48N166W TO 42N180W. 
.48 HOUR FORECAST DENSE FOG BETWEEN 59N AND A LINE FROM 48N134W 
TO 54N143W...FROM 53N TO 57N BETWEEN 143W AND 160W...AND W OF A 
LINE FROM 50N178W TO 47N165W TO 44N177W. 

.LIGHT FREEZING SPRAY N OF A LINE FROM 58N153W TO 60N145W.   
.24 HOUR FORECAST LIGHT FREEZING SPRAY WITHIN COOK INLET...AND N 
OF A LINE FROM 60N149W TO 59N139W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE 
FROM 59N154W TO 60N151W...AND N OF A LINE FROM 60N147W TO 
59N138W.

.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 0600 UTC SUN MAR 29.
24 HOUR FORECAST VALID 0600 UTC MON MAR 30.
48 HOUR FORECAST VALID 0600 UTC TUE MAR 31.

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N97W TO 13N97W TO 14N95W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 3.5 TO 5.0 M. ELSEWHERE WITHIN 15N93W TO 16N94W 
TO 16N97W TO 13N99W TO 10N99W TO 11N95W TO 15N93W N TO NE WINDS 
20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.12 HOUR FORECAST WITHIN 14N94W TO 16N94W TO 16N96W TO 12N101W 
TO 11N101W TO 11N96W TO 14N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 3.5 TO 4.5 M.
ELSEWHERE WITHIN 16N94W TO 16N97W TO 13N101W TO 10N102W TO 
09N97W TO 11N94W TO 16N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 
M IN N TO NE SWELL.
.18 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 16N93W TO 16N94W TO 
16N97W TO 15N97W TO 14N96W TO 14N95W TO 16N93W N TO NE WINDS 20 
TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 14N94W TO
15N97W TO 11N103W TO 09N101W TO 08N96W TO 11N94W TO 14N94W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 16N96W TO 14N97W TO
13N97W TO 13N94W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC 
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN
12N95W TO 14N97W TO 11N105W TO 08N101W TO 07N97W TO 07N95W TO 
12N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 2.5 M.

.SYNOPSIS AND FORECAST.

.WITHIN 12N86W TO 11N88W TO 10N88W TO 10N87W TO 11N86W TO 12N86W
...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 30 KT. 
SEAS BUILDING TO 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 0700 UTC SUN MAR 29...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 09N79W TO 03N95W. ITCZ FROM 03N95W TO 02N107W TO 
06.5N120W TO BEYOND 06N140W. SECOND ITCZ ALONG 03.4S BETWEEN 93W
AND 103W CONTINUES WSW OF 03.4S. SCATTERED MODERATE FROM 02S TO 
03.4S BETWEEN 98W AND 100W...AND FROM 02S TO 03.4S BETWEEN 104W 
AND 110W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.