196
FZPN40 PHFO 132135
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC WED AUG 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 13 2025.
24 HOUR FORECAST VALID 1800 UTC AUG 14 2025.
48 HOUR FORECAST VALID 1800 UTC AUG 15 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 27N179E 1009 MB MOVING N SLOWLY. TROUGH FROM LOW TO
23N166E NEARLY STATIONARY. WINDS 20 TO 25 KT N OF 23N BETWEEN
176W AND 178E. SEAS 2.5 TO 3 M WITHIN 150 NM OF LOW. NUMEROUS
MODERATE TO STRONG TSTMS N OF 26N BETWEEN 177W AND 179E.
SCATTERED MODERATE TSTMS ELSEWHERE N OF 20N BETWEEN 175W AND
171E.
.24 HOUR FORECAST LOW MOVED N OF AREA. TROUGH 30N180E 24N176E
23N166E. WINDS 20 TO 25 KT N OF LINE 30N174W 27N178W. SEAS
DECREASED TO 2.5 M OR BELOW.
.48 HOUR FORECAST TROUGH 30N179E 26N175E 24N170E. WINDS
DIMINISHED TO 20 KT OR LESS.

.TROUGH 30N142W 22N144W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 30N147W 22N154W.
.48 HOUR FORECAST TROUGH 30N154W 24N159W.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 2.5 M OR LOWER REMAINDER OF FORECAST AREA.

.ITCZ FROM 11N140W 10N167W 06N178W TO 12N167E. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 19N TO 16N BETWEEN 176W AND 179W.

$$

.FORECASTER FOSTER. HONOLULU HI.