618
FZPN40 PHFO 041048
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 04 2025.
24 HOUR FORECAST VALID 0600 UTC OCT 05 2025.
48 HOUR FORECAST VALID 0600 UTC OCT 06 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N158W 26N170W 26N180W MOVING E 10 KT. TROUGH 27N160W
24N160W NEARLY STATIONARY. ISOLATED MODERATE TSTMS 180 NM E OF
FRONT N OF 27N. SEAS 2.5 TO 3 M N OF FRONT.
.24 HOUR FORECAST FRONT MERGED WITH TROUGH. FRONT 30N155W 28N156W
THENCE TROUGH 26N157W. SEAS 2.5 TO 3 M N OF A LINE FROM 30N150W
25N154W 22N162W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N155W 25N153W. SEAS
SUBSIDED TO 2.5 M OR LESS.

.18 HOUR FORECAST NEW TROUGH 24N140W 18N141W.
.24 HOUR FORECAST TROUGH 25N140W 17N143W.
.48 HOUR FORECAST TROUGH 27N145W 18N147W.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

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

.ITCZ 09N140W 10N160W 09N170W 07N180W 04N164E. SCATTERED MODERATE
TSTMS WITHIN 180 NM OF ITCZ BETWEEN 163W AND 174E.

.SCATTERED MODERATE TSTMS FROM 08N TO 20N W OF 170E. ISOLATED
MODERATE TSTMS N OF 28N W OF 162E.

$$

.FORECASTER ALMANZA. HONOLULU HI.