620
FZPN40 PHFO 152154
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE JUL 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 15 2025.
24 HOUR FORECAST VALID 1800 UTC JUL 16 2025.
48 HOUR FORECAST VALID 1800 UTC JUL 17 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N157W 26N159W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N169W 24N170W MOVING W SLOWLY. ISOLATED MODERATE TSTMS
N OF 27N BETWEEN 170W AND 167W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.FRONT 30N179E 26N169E NEARLY STATIONARY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N176E 23N169E.
.48 HOUR FORECAST TROUGH 30N167E 20N164E.

.TROUGH 26N179W 17N179W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH MERGES WITH TROUGH DESCRIBED ABOVE.

.WINDS 20 TO 25 KT FROM 15N TO 08N E OF 166W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 12N TO 07N
BETWEEN 172W AND 161W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 14N TO 06N BETWEEN
178E AND 171W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 2.5 TO 3.0 M FROM 15N TO 04N BETWEEN 177W AND 147W.
.24 HOUR FORECAST SEAS 2.5 TO 3.0 M FROM 18N TO 07N BETWEEN
179W AND 145W.
.48 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.

.SEAS 2.5 M OR LOWER REMAINDER OF FORECAST AREA.

.ITCZ 10N140W 05N172W 05N160E. ISOLATED MODERATE
TSTMS WITHIN 270 NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 25N TO 10N W OF 164E.

$$

.FORECASTER TROTTER. HONOLULU HI.