316
FZPN02 KWBC 301725
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC AUG 30.
24 HOUR FORECAST VALID 1200 UTC AUG 31.
48 HOUR FORECAST VALID 1200 UTC SEP 01.

.WARNINGS.

...GALE WARNING...
.LOW 54N177E 981 MB MOVING NE 10 KT WILL BECOME NEARLY STATIONARY
AFTER 24 HOURS. FROM 42N TO 63N BETWEEN 163W AND 166E WINDS 25
TO 40 KT. SEAS 3.5 TO 6 M. ELSEWHERE FROM 41N TO 64N BETWEEN
162W
AND 163E WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 57N179W 986 MB. N OF 51N BETWEEN 160W AND
174W...AND BETWEEN 120 NM AND 300 NM S AND SW SEMICIRCLES WINDS
25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE N OF 47N W OF 159W WINDS 20
TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST LOW 57N180W 990 MB. WITHIN 150 NM S AND SW
SEMICIRCLES WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 50N
TO 65N BETWEEN 154W AND 171E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M.

...GALE WARNING...
.LOW 40N178W 1009 MB MOVING NE 10 KT. WITHIN 180 NM NE AND 120 NM
SE QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 4 M. ELSEWHERE FROM 36N
TO 41N BETWEEN 171W AND 179E WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 41N171W 1008 MB. WITHIN 360 NM N AND NE...
240 NM SE...AND 420 NM S AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.
.48 HOUR FORECAST LOW 44N165W 1012 MB. WITHIN 120 NM OF LOW
CENTER WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 41N153W 1003 MB MOVING S 10 KT
WILL TURN E AFTER 24 HOURS. WITHIN 300 NM W SEMICIRCLE WINDS 25
TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM 31N 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 37N153W 1004 MB.
FROM 31N TO 45N BETWEEN 142W AND 161W WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N150W 1006 MB.
FROM 31N TO 47N BETWEEN 141W AND 155W WINDS 20 TO 30 KT. SEAS
2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST.

.FROM 52N TO 57N BETWEEN 133W AND 138W AREA OF NW TO N WINDS TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST FROM 48N TO 58N BETWEEN 130W AND 138W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS TO 3 M.

.24 HOUR FORECAST FROM 31N TO 39N BETWEEN 120W AND 125W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST FROM 31N TO 40N BETWEEN 120W AND 125W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS TO 3 M.

.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N162E 1007 MB.
FROM 32N TO 40N BETWEEN 171E AND 160E WINDS TO 25 KT. SEAS TO
3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 37N179E 1006 MB.
WITHIN 180 NM EITHER SIDE OF A FRONT TO EXTEND FROM 39N170W TO
MAIN CENTER TO 33N163E WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 61N
BETWEEN 165W AND 179E.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM E OF A LINE FROM
56N170W TO 42N173W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 60N BETWEEN 158W AND
165W.

.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 1200 UTC SAT AUG 30.
24 HOUR FORECAST VALID 1200 UTC SUN AUG 31.
48 HOUR FORECAST VALID 1200 UTC MON SEP  1.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 05N91W TO 11N115W TO 06N127W TO 01N120W TO 03N112W TO
02N93W TO 05N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO
SW SWELL.
.24 HOUR FORECAST WITHIN 06N101W TO 06N108W TO 07N125W TO
06N108W TO 04N106W TO 04N103W TO 06N101W WINDS 20 KT OR LESS.
SEAS 2.5 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 09N106W TO 07N117W TO 04N108W TO 04N99W
TO 09N106W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.

.WITHIN 02S93W TO 03S96W TO 03S106W TO 03.4S113W TO 03S97W TO
03.4S86W TO 02S93W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20
KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 03S82W TO 02S88W TO 02S89W TO 03S96W TO
03.4S99W TO 03.4S81W TO 03S82W...EXCEPT LEE OF GALAPAGOS
ISLANDS...WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 01S111W TO 01S120W TO 03.4S120W TO
03.4S99W TO 01S111W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S
TO SW SWELL.

.WITHIN 16N120W TO 16N121W TO 15N123W TO 15N121W TO 15N120W TO
16N120W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.24 HOUR FORECAST WITHIN 15N97W TO 16N98W TO 15N98W TO 14N98W TO
14N97W TO 15N96W TO 15N97W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0
M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 16N98W TO 17N101W TO 16N102W TO 16N100W
TO 15N100W TO 15N98W TO 16N98W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED SE AND SW SWELL.

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

CONVECTION VALID AT 1200 UTC SAT AUG 30...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10.5N86W TO A 1010 MB LOW PRES NEAR
14.5N120W...EP93...TO A 1011 MB LOW PRES NEAR 11N131W TO 10N133W.
ITCZ FROM 10N133W TO BEYOND 08N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 09N TO 24N BETWEEN 89W AND 108W...AND 14N TO 18N
BETWEEN 114W AND 122W. SCATTERED MODERATE FROM 05N TO 09N E OF
84W...08N TO 10N BETWEEN 113W AND 119W...AND 07N TO 13N BETWEEN
124W AND 137W.

$$
.FORECASTER ADAMS. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

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

SYNOPSIS VALID 1200 UTC AUG 30 2025.
24 HOUR FORECAST VALID 1200 UTC AUG 31 2025.
48 HOUR FORECAST VALID 1200 UTC SEP 01 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N157W 29N165W 30N173W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT 30N151W 28N156W 30N168W.
.48 HOUR FORECAST FRONT 30N149W 28N153W 30N163W.

.TROUGH 30N153W 29N157W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH MERGES WITH FRONT DESCRIBED ABOVE.

.LOW NEAR 13N153W 1010 MB. TROUGH 15N153W 13N154W TO LOW TO
12N155W 10N156W. LOW AND TROUGH MOVING NW SLOWLY. WINDS 20 TO 25
KT FROM 16N TO 15N BETWEEN 154W AND 152W. SEAS 2.5 TO 3.0 M FROM
17N TO 14N BETWEEN 155W AND 151W. ISOLATED MODERATE TSTMS WITHIN
90 NM OF TROUGH.
.24 HOUR FORECAST LOW NEAR 15N157W 1011 MB. TROUGH 16N156W TO LOW
TO 13N156W 12N157W. WINDS EASED 20 KT OR LESS. SEAS SUBSIDED TO
2.5 M OR LOWER.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 16N160W 13N160W 12N159W.

.TROUGH 16N171W 12N172W 10N172W MOVING SW SLOWLY. ISOLATED
MODERATE TO LOCALLY STRONG TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 15N173W 11N174W.
.48 HOUR FORECAST TROUGH 14N176W 09N177W.

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

.ISOLATED MODERATE TSTMS FROM 16N TO 10N W OF 163E...AND FROM 25N
TO 21N BETWEEN 166E AND 171E.

.ITCZ 08N140W 11N146W 13N152W...12N156W 09N161W 13N170W...AND
13N172W 11N177W 12N179E 10N170E. ISOLATED MODERATE TSTMS WITHIN
210 NM OF ITCZ W OF 175W...AND WITHIN 120 NM ELSEWHERE.

.ISOLATED MODERATE TSTMS FROM 17N TO 09N W OF 163E...AND FROM 07N
TO 03N W OF 168E.

$$

.FORECASTER PIERCE. HONOLULU HI.