The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 11/04/2025 09:18:27 PM UTC
                        
028
FZPN40 PHFO 041118
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC TUE NOV 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC NOV 04 2025.
24 HOUR FORECAST VALID 0600 UTC NOV 05 2025.
48 HOUR FORECAST VALID 0600 UTC NOV 06 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WEAKENING FRONT 29N140W 26N160W 18N169W MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT BECOMING TROUGH 28N140W 25N153W.
.48 HOUR FORECAST DISSIPATING TROUGH 27N140W 25N154W.

.TROUGH 25N169W 22N171W 18N170W MOVING W 20 KT. SCATTERED MODERATE
TSTMS WITHIN 120 NM EITHER SIDE OF TROUGH.
.24 HOUR FORECAST TROUGH 22N178W 18N179E.
.36 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 12N173W 09N177W 05N179E MOVING W 10 KT. SCATTERED MODERATE
TSTMS FROM 05N TO 08N WITHIN 300 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH 13N179E 09N176E.
.48 HOUR FORECAST WEAKENED TROUGH 11N168E 06N167E.

.WINDS 20 TO 30 KT FROM 17S TO 28S BETWEEN 168W TO 169E...AND FROM
06N TO 10N BETWEEN 173W TO 175W.
.24 HOUR FORECAST WINDS 20 TO 25 KT WITHIN 90 NM OF A LINE FROM
20N175E 26N177W.
.48 HOUR FORECAST WINDS 20 KT OR LESS.

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

.SEAS 2.5 TO 4 M N OF 10N W OF 161W.
.24 HOUR FORECAST SEAS 2.5 TO 4.5 M N OF 26N E OF 163W. SEAS 2.5
TO 3.5 M N OF 07N W OF 170W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF 20N E OF 160W.

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

.ITCZ 09N140W 08N157W 11N172W...AND 08N179E 05N169E 06N172E. ISOLATED
MODERATE TSTMS WITHIN 180 NM EITHER SIDE OF ITCZ W OF 179W.

.SCATTERED MODERATE TSTMS WITHIN 60 NM OF 20N163W...WITHIN 60
15N169E...AND FROM 11N TO 23N W OF 167E.


$$

.FORECASTER BLOOD. HONOLULU HI.