The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 11/09/2025 01:00:52 PM UTC
                        
622
FZPN40 PHFO 090300
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN NOV 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC NOV 09 2025.
24 HOUR FORECAST VALID 0000 UTC NOV 10 2025.
48 HOUR FORECAST VALID 0000 UTC NOV 11 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N140W 25N150W 21N160W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT 27N140W 21N148W 20N157W.
.48 HOUR FORECAST FRONT 22N140W 18N150W 18N158W.

.FRONT 30N164E 27N160E MOVING E 15 KT.
.24 HOUR FORECAST FRONT 30N170E 25N160E.
.48 HOUR FORECAST FRONT DISSIPATED.

.WINDS 20 TO 25 KT N OF 27N BETWEEN 145W AND 155W...AND N OF
LINE 30N162E 27N160E.
.24 HOUR FORECAST WINDS 20 TO 30 KT 18N TO 25N BETWEEN 150W AND
170W...AND N OF 28N W OF 170E.
.48 HOUR FORECAST WINDS 20 TO 30 KT N OF 25N E OF 155W...AND
FROM 18N TO 30N BETWEEN 155W AND 175W.

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

.SEAS 2.5 TO 4 M N OF LINE 30N175W 22N170W 23N160W
28N140W...AND N OF LINE 30N165E 27N160E.
.24 HOUR FORECAST 4 TO 5 M N OF 28N BETWEEN 142W AND 150W...AND
N OF 28N BETWEEN 168E AND 160E. SEAS 2.5 TO 4 M ELSEWHERE
N OF LINE 30N175W 18N175W 20N150W 24N140W...AND N OF LINE
30N173E 24N160E.
.48 HOUR FORECAST SEAS 18N160E 25N180W 17N170W 15N150W 18N140W.

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

.ITCZ 08N153W 09N180W 05N165E. ISOLATED MODERATE TSTMS
WITHIN 180 NM OF ITCZ.

.MONSOON TROUGH 08N140W 07N150W. ISOLATED MODERATE TSTMS
WITHIN 180 NM OF TROUGH.

.ISOLATED MODERATE TSTMS WITHIN 90 NM OF POINT 14N146W...AND
N OF 20N W OF 170E.

$$

.FORECASTER PECHACEK. HONOLULU HI.