East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 151125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC TUE APR 15 2025 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 0600 UTC APR 15. 
24 HOUR FORECAST VALID 0600 UTC APR 16. 
48 HOUR FORECAST VALID 0600 UTC APR 17. 

.WARNINGS. 

...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 48N168W 986 MB MOVING NE 15 KT 
AND SECOND CENTER 36N174W 1000 MB MOVING E 25 KT. WITHIN 240 NM 
NW SEMICIRCLE OF FIRST CENTER...AND WITHIN 360 NM NW OF LINE 
FROM 45N168W TO 41N171W TO 35N175W...AND FROM 44N TO 52N BETWEEN 
155W AND 161W WINDS 30 TO 40 KT. SEAS 10 TO 18 FT. ELSEWHERE 
WITHIN 900 NM NW OF LINE FROM 48N151W TO 30N167W WINDS 20 TO 30 
KT. SEAS 8 TO 16 FT. 
.12 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 50N165W 980 MB 
AND SECOND CENTER 38N167W 996 MB. WITHIN 120 NM W SEMICIRCLE OF 
FIRST CENTER...AND WITHIN 90 NM SW SEMICIRCLE OF SECOND CENTER 
WINDS 40 TO 50 KT. SEAS 12 TO 20 FT. 
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 53N163W 974 MB 
AND SECOND CENTER 38N162W. BETWEEN 60 NM AND 180 NM W SEMICIRCLE 
OF FIRST CENTER WINDS 40 TO 50 KT. SEAS 16 TO 21 FT. ELSEWHERE 
WITHIN 360 NM W AND 240 NM E SEMICIRCLE OF FIRST CENTER...AND 
WITHIN 180 NM SW SEMICIRCLE OF SECOND CENTER...AND WITHIN 240 NM 
NE OF A LINE FROM 53N145W TO 58N156W WINDS 30 TO 40 KT. SEAS 12 
TO 22 FT. ELSEWHERE N OF 30N BETWEEN 142W AND 176E WINDS 20 TO 
30 KT. SEAS 8 TO 16 FT. 
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 58N162W 984 MB 
AND SECOND CENTER INLAND 61N154W 991 MB. WITHIN 360 NM SW 
SEMICIRCLE OF FIRST CENTER...AND 300 NM SE QUADRANT OF FIRST 
CENTER...AND N OF 55N BETWEEN 141W AND 151W WINDS 25 TO 40 KT. 
SEAS 12 TO 20 FT. ELSEWHERE N OF 43N BETWEEN 138W AND 174W...AND 
S OF 43N BETWEEN 151W AND 178W WINDS TO 25 KT. SEAS 8 TO 14 FT. 

...GALE WARNING...
.LOW 59N142W 1003 MB MOVING E 10 KT. WITHIN 90 NM OF CENTER 
WINDS 25 TO 35 KT. SEAS 19 TO 23 FT. ELSEWHERE WITHIN AREA N AND 
E OF LINE FROM 50N128W TO 38N145W TO 38N149W TO 55N156W TO 
60N150W WINDS TO 25 KT. SEAS 8 TO 20 FT...HIGHEST NEAR CENTER OF 
LOW. 
.24 HOUR FORECAST LOW DISSIPATED INLAND. N OF 53N E OF 139W 
WINDS LESS THAN 20 KT. SEAS TO 10 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED 

...GALE WARNING...
.WITHIN 300 NM E OF A LINE FROM 50N128W TO 36N135W WINDS TO 25 
KT. SEAS TO 9 FT. 
.24 HOUR FORECAST. FROM 47N TO 50N BETWEEN 126W AND 129W...AND 
FROM 41N TO 43N E OF 126W WINDS 25 TO 35 KT. SEAS 10 TO 15 FT. 
ELSEWHERE S OF 53N BETWEEN 124W AND 137W WINDS TO 25 KT. SEAS TO 
12 FT.
.48 HOUR FORECAST FROM 39N TO 44N E OF 129W WINDS 25 TO 35 KT. 
SEAS 12 TO 16 FT. ELSEWHERE WITHIN 480 NM SE OF LINE FROM 
49N129W TO 30N138W WINDS TO 25 KT. SEAS TO 12 FT.  

...GALE WARNING...
.LOW WELL W OF AREA. S OF 45N W OF 164E WINDS TO 25 KT. SEAS TO 
10 FT.
.24 HOUR FORECAST LOW WELL W OF AREA. FROM 36N TO 49N W OF 166E 
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.30 HOUR FORECAST LOW WELL W OF AREA. FROM 42N TO 49N BETWEEN 
167E AND 162E WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW W OF AREA 47N152E 983 MB. FROM 42N TO 50N 
BETWEEN 174E AND 169E WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. 
ELSEWHERE 37N W OF 178E WINDS TO 25 KT. SEAS TO 10 FT.     

.SYNOPSIS AND FORECAST. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 54N 
BETWEEN 159W AND 171W...AND N OF 51N BETWEEN 178W AND 177E.
.24 HOUR FORECAST DENSE FOG N OF 56N BETWEEN 146W AND 158W...AND 
N OF 51N BETWEEN 159W AND 168W...AND FROM 41N TO 48N W OF 162E.
.48 HOUR FORECAST DENSE FOG N OF 55N BETWEEN 152W AND 166W...AND 
FROM 45N TO 49N BETWEEN 147W AND 151W...AND FROM 40N TO 51N 
BETWEEN 172E AND 168E. 

.LIGHT TO MODERATE FREEZING SPRAY N OF 56N BETWEEN 159W AND 
171W. .24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 
58N164W TO 56N169W TO 61N178W. 
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 56N 
BETWEEN 164W AND 172W.  

.FORECASTER POCHE. 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 TUE APR 15.
24 HOUR FORECAST VALID 0600 UTC WED APR 16.
48 HOUR FORECAST VALID 0600 UTC THU APR 17.

.WARNINGS.

...GALE WARNING...
.GULF OF TEHUANTEPEC N OF 15N N WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.24 HOUR FORECAST WITHIN 15.5N95W TO 16N95W TO 15N95.5W TO 
14.5N95.5W TO 15N95W TO 15.5N95W...INCLUDING THE GULF OF 
TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS TO 10 FT. ELSEWHERE 
WITHIN 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W TO 
16N95W... INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 
KT. SEAS 8 TO 9 FT IN N SWELL.
.36 HOUR FORECAST WITHIN 14N95W TO 16N95W TO 16N96W TO 13N97W TO
13N95W TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE 
WINDS 20 TO 30 KT. SEAS TO 11 FT IN N TO NE SWELL. ELSEWHERE 
WITHIN 15N94W TO 13N96W TO 15N96W TO 11N98W TO 11N96W TO 13N94W 
TO 15N94W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 14N95W TO 15N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 
KT. SEAS TO 9 FT.

...GALE WARNING...
.42 HOUR FORECAST GULF OF CALIFORNIA WITHIN 31N113.5W TO 31N114W
TO 30.5N114.5W TO 30N114.5W TO 30N114W TO 30.5N113.5W TO 
31N113.5W SW TO S WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.45 HOUR FORECAST GULF OF CALIFORNIA WITHIN 31N113W TO 31N114W 
TO 30N115W TO 31N114W TO 30N114W TO 30N113W TO 31N113W SW TO S 
WINDS 25 TO 35 KT. SEAS TO 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA WITHIN 31N113W TO 31N114W 
TO 30N115W TO 30N114W TO 30N113W TO 31N113W SW TO S WINDS 25 TO 
35 KT. SEAS TO 9 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 11N86W TO 11N87W TO 11N88W TO 10N88W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO
25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 11N88W TO 10N88W TO
10N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 11N86W TO 11N89.5W TO 10.5N89.5W TO 
11N88W TO 10.5N87W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... 
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.WITHIN 30N126W TO 30N136W TO 29N135W TO 28N134W TO 29N132W TO
29N129W TO 30N126W WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE 
SWELL.
.24 HOUR FORECAST WITHIN 30N133W TO 30N140W TO 26N140W TO 
27N137W TO 30N133W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE
SWELL.
.48 HOUR FORECAST WITHIN 30N128W TO 30N136W TO 29N134W TO 
29N130W TO 30N128W WINDS 20 KT OR LESS. SEAS 8 FT IN N TO NE 
SWELL.

.WITHIN 18N136W TO 17N137W TO 18N140W TO 06N140W TO 08N139W TO
11N138W TO 18N136W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NE 
SWELL.
.24 HOUR FORECAST WITHIN 07.5N139.5W TO 07.5N140W TO 06.5N140W 
TO 06.5N139.5W TO 06.5N139W TO 07.5N139.5W WINDS 20 KT OR LESS. 
SEAS 8 FT IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 15N133W TO 15N137W TO 13N140W TO 
10N140W TO 11N137W TO 13N134W TO 15N133W WINDS 20 KT OR LESS. 
SEAS 8 FT IN N TO NE SWELL.

.WITHIN 03.5S103.5W TO 03.5S104.5W TO 03.4S104.5W TO 03.4S103.5W
TO 03.5S103.5W WINDS 20 KT OR LESS. SEAS 8 FT IN SE SWELL.
.42 HOUR FORECAST WITHIN 03S101.5W TO 03S102W TO 03S103.5W TO 
03.4S104W TO 03.4S101.5W TO 03S101.5W WINDS 20 KT OR LESS. SEAS 8
FT IN SE TO S SWELL.
.48 HOUR FORECAST WITHIN 03S102W TO 03S103W TO 03S105W TO 
03S106W TO 03.4S106.5W TO 03.4S102W TO 03S102W WINDS 20 KT OR 
LESS. SEAS 8 FT IN SE TO S SWELL.

.12 HOUR FORECAST WITHIN 11N116.5W TO 11N117.5W TO 11.5N118.5W
TO 11N118.5W TO 10.5N117.5W TO 10.5N116.5W TO 11N116.5W WINDS 20
KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 12N116W TO 12N118W TO 11N122W TO 
10N122W TO 09N119W TO 10N114W TO 12N116W WINDS 20 KT OR LESS. 
SEAS 8 FT IN MIXED E AND N SWELL.
.48 HOUR FORECAST WITHIN 11N121W TO 11N124W TO 10N125W TO 
09N124W TO 10N122W TO 11N121W WINDS 20 KT OR LESS. SEAS 8 FT IN 
MIXED E AND N SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0820 UTC TUE APR 15...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 11N74.5W TO 06.5N79W TO 06.5N84W TO 
04N91.5W. ITCZ FROM 04N91.6W TO 04.5N108W TO 02.5N120W TO BEYOND
02N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 
120 NM OF COASTS OF ECUADOR AND COLOMBIA FROM 01N TO 07N. 
SCATTERED TO LOCALLY NUMEROUS MODERATE TO STRONG CONVECTION  
FROM 01.5N TO 07.5N BETWEEN 86W AND 107W. SCATTERED MODERATE 
ISOLATED STRONG CONVECTION FROM 04N TO 11.5N BETWEEN 107W AND 
117W AND S OF 00N BETWEEN 100W AND 117W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC APR 15 2025.
24 HOUR FORECAST VALID 0600 UTC APR 16 2025.
48 HOUR FORECAST VALID 0600 UTC APR 17 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N172W 24N173E 21N160E MOVING E 25 KT ALONG 30N AND E
SLOWLY S OF 25N. SW WINDS 20 TO 30 KT WITHIN 240 NM E OF FRONT N
OF 27N. N TO NE WINDS 20 TO 25 KT N OF 28N BETWEEN 170E AND FRONT.
ISOLATED MODERATE TSTMS WITHIN 120 NM E OF FRONT N OF 27N.
.24 HOUR FORECAST FRONT 30N160W 24N170W 22N172E 25N165E. NE WINDS
20 TO 25 KT FROM 21N TO 28N BETWEEN 170E AND 170W.
.48 HOUR FORECAST FRONT 30N154W 20N165W 18N175E. NE WINDS 20 TO
25 KT WITHIN 600 NM NW OF FRONT.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 20N E OF 160W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 10N W OF
167E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 11N TO 15N 
BETWEEN
170E AND 175E.

.TROUGH 26N150W 21N147W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.SEAS 8 TO 10 FT FROM 03N TO 15N E OF 178E...AND N OF 26N BETWEEN
170E AND 180W... AND FROM 15N TO 25N BETWEEN 160W AND 153W.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF 24N BETWEEN 170E AND 165W.
SEAS 8 TO 9 FT FROM 03N TO 15N BETWEEN 163W AND 145W.
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 26N BETWEEN 175W AND 160W.
SEAS 8 TO 12 FT ELSEWHERE N OF LINE 30N156W 20N172W 21N168E. SEAS
8 TO 9 FT FROM 06N TO 12N W OF 165E.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.

.ISOLATED MODERATE TSTMS FROM 02N TO 05N BETWEEN 170E AND 160E.

$$

.FORECASTER SHIGESATO. HONOLULU HI.