767
FZPN40 PHFO 011524
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON SEP 01 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.

SECURITE

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

SYNOPSIS VALID 1200 UTC SEP 01 2025.
24 HOUR FORECAST VALID 1200 UTC SEP 02 2025.
48 HOUR FORECAST VALID 1200 UTC SEP 03 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 14N159W 1013 MB MOVING W 10 KT. TROUGH 17N157W TO LOW TO
10N159W.
.24 HOUR FORECAST LOW 14N161W 1013 MB. TROUGH 15N160W TO LOW TO
13N160W.
.48 HOUR FORECAST LOW WEAKENS TO TROUGH. TROUGH 17N165W 10N166W.

.LOW 30N169W 1015 MB MOVING N 10 KT. TROUGH FROM LOW TO 29N175W.
.24 HOUR FORECAST LOW AND TROUGH MOVED N OF AREA.

.LOW 13N177W 1012 MB MOVING W 10 KT. TROUGH FROM 16N174W TO LOW TO
08N177W 07N178W. ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH
AND LOW.
.24 HOUR FORECAST LOW WEAKENS TO TROUGH. TROUGH 15N174W 10N174W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 254168W 20N168W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N147W 27N154W MOVING N SLOWLY.
.24 HOUR FORECAST TROUGH 30N146W 27N150W.
.48 HOUR FORECAST TROUGH MOVED N OF AREA.

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

.ITCZ 09N140W 09N142W 08N145W 09N148W 08N152W 07N155W 07N158W...AND
11N160W 11N166W 12N169W 12N174W. MONSOON TROUGH 14N170E 08N160E.
ISOLATED MODERATE TSTMS WITHIN 150 NM OF ITCZ AND MONSOON TROUGH.

$$

.FORECASTER M BALLARD. HONOLULU HI.