FZPN40 PHFO 210256
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN JUN 21 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 180W

SYNOPSIS VALID 0000 UTC JUN 21 2026.
24 HOUR FORECAST VALID 0000 UTC JUN 22 2026.
48 HOUR FORECAST VALID 0000 UTC JUN 23 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N157W 24N165W MOVING E SLOWLY.
.24 HOUR FORECAST TROUGH 30N156W 25N157W.
.48 HOUR FORECAST TROUGH 30N156W 25N159W.

.TROUGH 24N165W 20N167W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 23N141W 17N142W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 20N145W 16N145W.
.48 HOUR FORECAST TROUGH 20N149W 17N148W 14N150W.

.ITCZ 04N140W 05N165W 03N176W...SCATTERED MODERATE TSTMS WITHIN
300 NM OF ITCZ.

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

$$

.FORECASTER FOSTER. HONOLULU HI.