598
FZPN40 PHFO 071519
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE OCT 07 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 07 2025.
24 HOUR FORECAST VALID 1200 UTC OCT 08 2025.
48 HOUR FORECAST VALID 1200 UTC OCT 09 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 27N149W 21N151W 15N147W MOVING W 10 KT. ISOLATED MODERATE
TSTMS FROM 24N TO 28N BETWEEN 148W AND 144W.
.24 HOUR FORECAST TROUGH MERGES WITH TROUGH DESCRIBED BELOW.

.TROUGH 23N153W 19N164W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 30N154W 20N164W.
.48 HOUR FORECAST TROUGH 30N156W 18N166W.

.TROUGH 28N177E 24N175E MOVING W SLOWLY. ISOLATED MODERATE TSTMS
N OF 23N BETWEEN 173E AND 180W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.LOW NEAR 10N154W 1009 MB MOVING W 10 KT.
.24 HOUR FORECAST LOW NEAR 10N160W 1009 MB.
.48 HOUR FORECAST LOW DISSIPATED.

.WINDS 20 TO 25 KT N OF 24N BETWEEN 173W AND 157W.
.24 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

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

.SEAS 2.5 TO 3 M N OF 24N BETWEEN 173W AND 158W.
.24 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.

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

.ITCZ 10N140W 10N158W 06N170W 05N175E. ISOLATED MODERATE TSTMS WITHIN
180 NM OF ITCZ E OF 170W.

.SCATTERED MODERATE TSTMS FROM 20N TO 22N BETWEEN 180W AND 172W...
AND FROM 15N TO 20N W OF 165E. ISOLATED MODERATE TSTMS ELSEWHERE FROM
17N TO 20 BETWEEN 180W AND 170W... AND FROM 07N TO 11N BETWEEN 173E
AND 178E.

$$

.FORECASTER SHIGESATO. HONOLULU HI.