062
FZPN40 PHFO 012247
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SEP 01 2025.
24 HOUR FORECAST VALID 1800 UTC SEP 02 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 03 2025.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.LOW 14N160W 1013 MB MOVING W 10 KT. TROUGH 15N157W TO LOW TO
10N159W. ISOLATED MODERATE TSTMS WITHIN 180 NM OF LOW.
.24 HOUR FORECAST LOW 14N161W 1013 MB. TROUGH 15N160W TO LOW TO
13N160W.
.48 HOUR FORECAST LOW WEAKENS TO TROUGH. TROUGH 17N165W 10N166W.

.FRONT 30N173E 27N165E 28N160E NEARLY STATIONARY. SCATTERED
MODERATE TO LOCALLY STRONG TSTMS WITHIN 120 NM OF FRONT.
.24 HOUR FORECAST FRONT 30N173E 25N160E.
.48 HOUR FORECAST FRONT WEAKENS TO TROUGH 30N175E 24N160E.

.TROUGH 24N168W 21N168W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 12N176W 11N177W 08N177W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH 13N179W 10N179E 05N176W.
.48 HOUR FORECAST TROUGH DISSIPATED.

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

.MONSOON TROUGH 09N140W 08N145W THENCE ITCZ 10N153W 11N156W
09N157W...AND 11N161W 10N169W 12N173W. MONSOON TROUGH 14N170E
10N163E 08N160E. ISOLATED MODERATE TSTMS WITHIN 150 NM OF ITCZ
AND MONSOON TROUGH.

$$

.FORECASTER PECHACEK. HONOLULU HI.