206
FZPN40 PHFO 042256
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT OCT 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 04 2025.
24 HOUR FORECAST VALID 1800 UTC OCT 05 2025.
48 HOUR FORECAST VALID 1800 UTC OCT 06 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N157W 27N163W 25N171W MOVING E SLOWLY. TROUGH 28N158W
24N162W NEARLY STATIONARY. ISOLATED MODERATE TSTMS N OF 28N
BETWEEN 158W AND 154W. SEAS 2.5 TO 3.5 M N OF LINE 30N153W 23N165W
26N174W 27N175W 30N174W.
.24 HOUR FORECAST FRONT MERGED WITH TROUGH. FRONT 30N154W 25N162W
THENCE TROUGH 24N163W. SEAS SUBSIDED TO 8 FT OR LOWER.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N160W 25N153W.

.TROUGH 30N174E 25N173E MOVING NW 10 KT. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF TROUGH FROM 26N TO 24N.
.24 HOUR FORECAST TROUGH MOVED N OF AREA.

.TROUGH 24N140W 18N141W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 25N143W 17N146W.
.48 HOUR FORECAST TROUGH 26N145W 22N146W 17N149W.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.OTHERWISE...SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 10N140W 09N159W 10N169W 05N165E. SCATTERED MODERATE TO
LOCALLY STRONG TSTMS WITHIN 180 NM OF ITCZ.

.SCATTERED MODERATE TSTMS FROM 22N TO 14N W OF 170E.

$$

.FORECASTER TROTTER. HONOLULU HI.