092
FZPN40 PHFO 292250
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC FRI AUG 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 29 2025.
24 HOUR FORECAST VALID 1800 UTC AUG 30 2025.
48 HOUR FORECAST VALID 1800 UTC AUG 31 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 15N151W 12N152W 10N151W MOVING W SLOWLY. WINDS 20 TO 25 KT
WITHIN 60 NM OF TROUGH. SEAS 2.5 TO 3 M FROM 12N TO 17N BETWEEN
148W AND 153W. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 15N154W 12N155W 10N155W. WINDS 20 TO 25 KT
FROM 12N TO 16N BETWEEN 153W AND 156W. SEAS 2.5 TO 3 M FROM 14N TO
17N BETWEEN 157W AND 153W.
.48 HOUR FORECAST TROUGH 18N158W 12N158W. WINDS EASED 20 KT OR
LESS. SEAS SUBSIDED TO 2.5 M OR LOWER.

.TROUGH 15N166W 12N167W 09N167W MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 16N173W 10N173W.
.48 HOUR FORECAST TROUGH 17N174W 09N174W.

.TROUGH 14N177E 10N177E 07N178E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 14N175E 08N175E.
.48 HOUR FORECAST TROUGH 14N170E 08N169E.

.TROUGH 15N162E 12N162E 09N163E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.TROUGH 25N164E 23N164E 22N165E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.24 HOUR FORECAST NEW FRONT 30N153W 28N159W 30N169W.
.48 HOUR FORECAST FRONT 30N149W 27N156W 30N169W.

.24 HOUR FORECAST NEW TROUGH 27N166E 23N167E.
.48 HOUR FORECAST TROUGH 27N164E 24N163E.

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

.ITCZ FROM 11N140W 10N143W 11N147W...10N155W 10N163W...10N171W
09N179W...AND 08N174E 05N167E 04N163E. ISOLATED MODERATE TSTMS
WITHIN 210 NM OF ITCZ W OF 170W...AND WITHIN 120 NM ELSEWHERE.

$$

.FORECASTER AHUE. HONOLULU HI.