430
FZPN40 PHFO 180904
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC TUE NOV 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC NOV 18 2025.
24 HOUR FORECAST VALID 0600 UTC NOV 19 2025.
48 HOUR FORECAST VALID 0600 UTC NOV 20 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 30N163W 26N170W 22N175E THENCE TROUGH 21N160E MOVING E 25
KT. WINDS 20 TO 30 KT AND SEAS 3 TO 5 M N OF FRONT AND TROUGH. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF FRONT AND TROUGH.
.12 HOUR FORECAST FRONT 30N157W 23N164W 22N180E THENCE TROUGH TO 22N167E.
NE WINDS 25 TO 35 KT N OF FRONT E OF 180E. WINDS 20 TO 30 KT ELSEWHERE
AND SEAS 3 TO 4.5 M N OF FRONT AND TROUGH.
.24 HOUR FORECAST FRONT 30N152W 24N160W 20N170W 20N180W THENCE TROUGH
23N165E. WINDS 20 TO 30 KT N OF FRONT AND TROUGH E OF 174E. SEAS
2.5 TO 4.5 M N OF FRONT AND TROUGH.
.48 HOUR FORECAST FRONT BECAME TROUGH 30N141W 28N157W. WINDS 20 TO
30 KT N OF 20N BETWEEN 150W AND 178E. SEAS 3 TO 4.5 M N OF A LINE
30N147W 18N173W 18N173E. ADDITIONAL SEAS INCLUDED BELOW.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST NEW FRONT 30N170E 26N160E. WINDS 20 TO 25 KT AND
SEAS 2.5 TO 3 M N OF FRONT.

.24 HOUR FORECAST NEW TROUGH 26N152W 14N154W.
.48 HOUR FORECAST TROUGH 24N162W 17N163W.

.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 10N TO 15N W OF 170E.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 15N TO 23N BETWEEN 170E
AND 178W... AND FROM 12N TO 25N E OF 160W.

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

.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 10N TO 20N W OF 180E.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF 20N BETWEEN 180W AND 150W. SEAS
2.5 TO 3 M FROM 10N TO 20N.

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

.ITCZ 08N140W 08N160W 09N170W 06N169E. ISOLATED MODERATE TSTMS FROM
04N TO 10N BETWEEN 170E AND 180W.

.ISOLATED MODERATE TSTMS FROM 11N TO 14N BETWEEN 166E AND 173E...
AND FROM 15N TO 22N BETWEEN 160W AND 150W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.