658
FZPN40 PHFO 150320
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JUL 15 2025.
24 HOUR FORECAST VALID 0000 UTC JUL 16 2025.
48 HOUR FORECAST VALID 0000 UTC JUL 17 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N178E 26N169E NEARLY STATIONARY. ISOLATED MODERATE TSTMS
N OF 27N BETWEEN 171E AND 179W.
.24 HOUR FORECAST FRONT 30N179E 25N168E.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N175E 24N167E.

.TROUGH 28N166W 22N168W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW TROUGH 26N178W 19N179E.
.48 HOUR FORECAST TROUGH MERGES WITH TROUGH DESCRIBED ABOVE.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 12N TO 07N BETWEEN 174W
AND 143W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 12N TO 08N BETWEEN 172W
AND 156W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 2.5 TO 3.5 M S OF 15N BETWEEN 172W AND 143W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 15N TO 05N BETWEEN 177W
AND 148W.
.48 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.

.SEAS 2.5 M OR LOWER REMAINDER OF FORECAST AREA.

.ITCZ 10N140W 05N172W 06N160E. ISOLATED MODERATE TSTMS WITHIN 240
NM OF ITCZ.

.SCATTERED MODERATE TSTMS FROM 24N TO 17N BETWEEN W OF 167E.

$$

.FORECASTER TROTTER. HONOLULU HI.