603
FZPN02 KWBC 302325
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC SAT AUG 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

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 1800 UTC AUG 30.
24 HOUR FORECAST VALID 1800 UTC AUG 31.
48 HOUR FORECAST VALID 1800 UTC SEP 01.

.WARNINGS.

...GALE WARNING...
.LOW 54N178E 982 MB MOVING NE 10 KT WILL BECOME NEARLY
STATIONARY AFTER 24 HOURS. FROM 44N TO 64N BETWEEN 162W AND
168E WINDS 25 TO 40 KT. SEAS 4 TO 6 M. ELSEWHERE FROM 41N TO
65N BETWEEN 160W AND 165E WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 58N178W 986 MB. N OF 53N BETWEEN 160W
AND 172W...AND BETWEEN 120 NM AND 300 NM S AND SW QUADRANTS
WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE N OF 49N W OF
157W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 57N178W 992 MB. WITHIN 240 NM S
SEMICIRCLE...AND 120 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS
3 TO 5 M. ELSEWHERE N OF 52N BETWEEN 153W AND 175E WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 40N155W 1002 MB MOVING SE 10
KT WILL TURN E AFTER 24 HOURS. WITHIN 240 NM W AND SW
SEMICIRCLES WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE
FROM 30N TO 47N BETWEEN 143W AND 162W WINDS 20 TO 30 KT.
SEAS 2.5 TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N152W
1005 MB. FROM 30N TO 46N BETWEEN 141W AND 160W WINDS 20 TO
30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N149W
1007 MB. FROM 30N TO 47N BETWEEN 140W AND 156W WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.24 HOUR FORECAST LOW 37N162E 1006 MB. FROM 33N TO 40N
BETWEEN 165E AND 160E WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 38N180W 1002 MB. WITHIN 240 NM SE
SEMICIRCLE...AND WITHIN 180 NM SW AND 120 NM NW QUADRANTS
WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 31N TO
42N BETWEEN 166W AND 174E WINDS 20 TO 30 KT. SEAS TO 3 M.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MAIN CENTER 37N178E 1011 MB MOVING NE
25 KT WITH A FRONT EXTENDING FROM 41N176W TO MAIN CENTER
TO 34N167E TO 35N160E. WITHIN 180 NM S AND SE OF FRONT
WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 43N169W 1008 MB WITH A FRONT
FORECAST TO EXTEND FROM 49N166W TO LOW CENTER TO 37N178W
TO 35N169E. WITHIN 180 NM E AND SE OF FRONT N OF 37N...
AND WITHIN 180 NM EITHER SIDE FRONT S OF 37N WINDS 20 TO
30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 47N163W 1011 MB. WITHIN 180 NM S
AND SW QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.

.24 HOUR FORECAST FROM 51N TO 58N BETWEEN 132W AND 139W
AREA OF NW TO N WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 48N TO 57N BETWEEN 130W AND 138W
AREA OF NW TO N WINDS 20 TO 30 KT. SEAS TO 3 M.

.24 HOUR FORECAST FROM 32N TO 41N BETWEEN 120W AND 125W
AREA OF NW TO N WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 32N TO 42N BETWEEN 120W AND 125W
AREA OF NW TO N WINDS TO 25 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N
TO 62N BETWEEN 167W AND 179E.
.24 HOUR FORECAST DENSE FOG FROM 47N TO 58N BETWEEN
159W AND 167W...AND N OF 55N W OF 179E.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 45N BETWEEN
169W AND 177W.

.FORECASTER MILLS. 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 1800 UTC SAT AUG 30.
24 HOUR FORECAST VALID 1800 UTC SUN AUG 31.
48 HOUR FORECAST VALID 1800 UTC MON SEP 01.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 05N90W TO 09N105W TO 06N128W TO 03N121W TO 02N107W TO
03N94W TO 05N90W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED
SE AND SW SWELL.
.24 HOUR FORECAST WITHIN 06N101W TO 07N102W TO 06N107W TO
04N108W TO 04N104W TO 04N102W TO 06N101W WINDS 20 KT OR LESS.
SEAS 2.5 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 09N104W TO 07N114W TO 05N117W TO
04N104W TO 02N96W TO 03N93W TO 09N104W WINDS 20 KT OR LESS. SEAS
2.5 M IN S TO SW SWELL.

.WITHIN 03N84W TO 03N86W TO 03.4S95W TO 03S89W TO 03.4S87W TO
03.4S81W TO 03N84W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20
KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 03S88.5W TO 03S94.5W TO 03.4S101W TO
03.4S88W TO 03S88.5W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20
KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.
.33 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 17N119W TO 17N121W TO 15N123W TO 14N123W TO 14N122W TO
15N120W TO 17N119W WINDS 20 KT OR LESS. SEAS 2.5 M IN SE SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.18 HOUR FORECAST WITHIN 16N97W TO 16N99W TO 14N99W TO 14N98W TO
14N97W TO 15N96W TO 16N97W E TO SE WINDS 20 TO 25 KT. SEAS 2.5
TO 3.0 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 16N97W TO 16N99W TO 15N100W TO 14N98W
TO 14N97W TO 15N96W TO 16N97W E TO SE WINDS 20 TO 25 KT. SEAS 2.5
TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 17N101W TO 18N103W TO 18N105W TO
17N105W TO 15N103W TO 16N102W TO 17N101W SE WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M IN S TO SW SWELL.

.24 HOUR FORECAST WITHIN 03S118W TO 02S120W TO 03.4S120W TO
03.4S116W TO 03S118W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW
SWELL.
.48 HOUR FORECAST WITHIN 01S105W TO 00N113W TO 00N120W TO
03.4S120W TO 03.4S98W TO 01S105W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 1800 UTC SAT AUG 30...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N86W TO A 1010 MB LOW PRES NEAR
14.5N120.5W...EP93...TO 10N133W. ITCZ FROM 10N133W TO BEYOND
08N140W. SCATTERED MODERATE ISOLATED STRONG FROM 08N TO 16N
BETWEEN 91W AND 114W...AND 14N TO 18N BETWEEN 116W TO 123W.
SCATTERED MODERATE FROM 06N TO 10N E OF 87W...AND 07N TO 12N
BETWEEN 123W AND 136W.

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 1800 UTC AUG 30 2025.
24 HOUR FORECAST VALID 1800 UTC AUG 31 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 01 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N155W 30N160W 30N165W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT 30N150W 28N153W THENCE TROUGH
25N155W.
.48 HOUR FORECAST FRONT WEAKENS TO TROUGH 30N148W 27N156W.

.TROUGH 30N151W 29N157W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH MERGES WITH FRONT DESCRIBED ABOVE.

.LOW NEAR 15N153W 1010 MB. TROUGH FROM LOW TO 15N152W AND FROM
LOW TO 13N155W MOVING W 10 KT. ISOLATED TSTMS WITHIN 120 NM OF
LOW.
.24 HOUR FORECAST LOW WEAKENS TO TROUGH 15N155W 13N158W.
.48 HOUR FORECAST TROUGH 17N162W 13N158W 10N155W.

.TROUGH 16N170W 10N173W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER ENTIRE FORECAST
AREA.

.ITCZ 08N140W 10N145W 13N149W...AND 11N157W 09N169W...AND 13N174W
12N180W 12N165E. ISOLATED TSTMS WITHIN 120 NM OF ITCZ.

.SCATTERED MODERATE TSTMS WITHIN 180 NM OF POINT 23N167E.

$$

.FORECASTER PECHACEK. HONOLULU HI.