789
FZPN40 PHFO 042123
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC THU SEP 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 04 2025.
24 HOUR FORECAST VALID 1800 UTC SEP 05 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 06 2025.

.WARNINGS.

...HURRICANE WARNING...
.48 HOUR FORECAST HURRICANE KIKO NEAR 15.3N 140.1W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND 50 NM
SW QUADRANT. SEAS 4 M OR GREATER FROM 17N TO 14N E OF 143W.
WITH SEAS TO 7 M. SEAS 2.5 TO 4 M ELSEWHERE FROM 20N TO 12N E OF
145W.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.LOW NEAR 29N164W 1017 MB MOVING E 10 KT. TROUGH 27N156W TO LOW
NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 90 NM OF LOW AND
TROUGH.
.24 HOUR FORECAST LOW NEAR 30N159W 1016 MB. TROUGH 26N154W TO LOW.
.48 HOUR FORECAST LOW NEAR 28N155W 1015 MB. TROUGH 25N153W TO LOW.

.FRONT 30N176E 25N164E NEARLY STATIONARY. ISOLATED MODERATE TSTMS
WITHIN 180 NM OF FRONT.
.24 HOUR FORECAST FRONT 30N175E 25N163E.
.48 HOUR FORECAST FRONT 30N172E 26N163E.

.FRONT 30N140W 27N150W MOVING E SLOWLY.
.24 HOUR FORECAST FRONT 29N140W 27N150W.
.48 HOUR FORECAST FRONT DISSIPATED.

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

.ITCZ 09N144W 11N154W 08N174W. ISOLATED MODERATE TSTMS WITHIN 180
NM OF ITCZ W OF 163W.

.MONSOON TROUGH 11N140W 10N143W. ISOLATED MODERATE TSTMS WITHIN
120 NM N OF MONSOON TROUGH.

.ISOLATED MODERATE TSTMS S OF 17N W OF 173W.

$$

.FORECASTER FOSTER. HONOLULU HI.