The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 09/03/2025 01:03:50 PM UTC
                        
202
FZPN40 PHFO 030303
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC WED SEP 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 03 2025.
24 HOUR FORECAST VALID 0000 UTC SEP 04 2025.
48 HOUR FORECAST VALID 0000 UTC SEP 05 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N173E 27N160E NEARLY STATIONARY. ISOLATED MODERATE
TSTMS WITHIN 210 NM OF FRONT.
.24 HOUR FORECAST FRONT 30N174E 26N160E.
.48 HOUR FORECAST WEAK FRONT 30N174E 25N160E.

.FRONT 30N147W 26N153W 25N154W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT BECOMES TROUGH 30N147W 27N154W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 11N151W 07N155W MOVING W SLOWLY. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST 12N152W 07N158W.
.48 HOUR FORECAST 13N156W 09N160W.

.TROUGH 15N178E 09N179E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 14N TO 03N BETWEEN 176W AND 173E.
.24 HOUR FORECAST TROUGH DISSIPATED.

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

.MONSOON TROUGH 10N140W 12N150W. ISOLATED MODERATE TSTMS
WITHIN 180 NM OF TROUGH.

.ISOLATED MODERATE TSTMS S OF 15N W OF 179E.

$$

.FORECASTER FOSTER. HONOLULU HI.