170
FZPN40 PHFO 062251
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT SEP 06 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 06 2025.
24 HOUR FORECAST VALID 1800 UTC SEP 07 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 08 2025.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE KIKO NEAR 15.5N 140.5W 948 MB AT 1500 UTC SEP 06
MOVING WNW OR 290 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 115 KT
GUSTS 140 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM W
SEMICIRCLE...60 NM NE QUADRANT AND 70 NM SE QUADRANT. SEAS 4 M OR
GREATER WITHIN 120 NM E SEMICIRCLE AND 90 NM W SEMICIRCLE WITH
SEAS TO 6.5 M. SEAS 2.5 TO 4 M ELSEWHERE 20N TO 13N E OF 144W.
.24 HOUR FORECAST HURRICANE KIKO NEAR 17.0N 143.9W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 4 M OR GREATER. SEAS 2.5 TO 4
M ELSEWHERE FROM 22N TO 13N E OF 148W.
.48 HOUR FORECAST HURRICANE KIKO NEAR 19.1N 147.9W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER FROM 21N TO
18N BETWEEN 149W AND 146W WITH SEAS TO 9 M. SEAS 2.5 TO 4 M
ELSEWHERE 25N TO 16N BETWEEN 151W AND 141W.

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 30N157W 1014 MB MOVING SW 15 KT. FRONT FROM LOW TO
27N160W 28N172W. SCATTERED STRONG TSTMS WITHIN 150 NM OF
LOW AND FRONT.
.24 HOUR FORECAST LOW 27N160W. FRONT FROM LOW TO 28N169W
30N165W AND FROM LOW TO 26N162W 23N165W.
.48 HOUR FORECAST LOW 22N166W. FRONT FROM LOW TO 28N163W
AND FROM LOW TO 20N169W.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.24 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 30N166E 26N160E
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N173E 24N165E
30N161E.

.SEAS 2.5 M OR LESS OVER REMAINDER FORECAST AREA.

.ITCZ 09N150W 10N160W 08N180W 05N160E. ISOLATED MODERATE
TSTMS WITHIN 210 NM OF ITCZ BETWEEN 172W AND 154W...AND
WITHIN 120 NM ELSEWHERE OF ITCZ.

.SCATTERED MODERATE TSTMS FROM 10N TO 25N W OF 170E.

$$

.FORECASTER PECHACEK. HONOLULU HI.