The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 12/28/2025 08:06:28 PM UTC
                        
891
FZPN40 PHFO 281006
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SUN DEC 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 28 2025.
24 HOUR FORECAST VALID 0600 UTC DEC 29 2025.
48 HOUR FORECAST VALID 0600 UTC DEC 30 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N159W 25N163W 21N169W MOVING NE 15 KT. WINDS 20 TO
30 KT N OF 28N BETWEEN 172W AND 151W. ISOLATED MODERATE
TSTMS WITHIN 150 NM OF FRONT.
.24 HOUR FORECAST FRONT 30N153W 25N158W THENCE TROUGH
21N166W. WINDS EASED 20 KT OR LESS.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N152W 25N157W
22N163W.

.24 HOUR FORECAST NEW FRONT 30N168E 24N160E. WINDS 20 TO 25 KT N
OF LINE 30N169E 25N165E 30N173E.
.48 HOUR FORECAST FRONT 30N176E 25N169E 21N160E. WINDS 20 TO 25
FROM 24N TO 21N W OF 169E.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 23N TO 16N E OF 146W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 22N TO 13N E OF 151W.

.SEAS 4 TO 5 M N OF LINE 30N177W 27N169W 30N163W. SEAS 2.5 TO 4 M
ELSEWHERE N OF LINE 30N172E 24N174W 30N157W...AND E OF LINE
29N140W 26N146W 11N160W 04N155W 04N140W. SEAS 2.5 TO 3 M FROM 16N
TO 07N W OF 177W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 24N160E 18N172W
23N159W 30N150W...AND E OF LINE 26N140W 23N151W 14N157W 08N140W.
.48 HOUR FORECAST SEAS 4 TO 5 M N OF LINE 29N160E 27N165E
30N171E. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 20N160E 26N177E
20N168E 12N167E 11N176W 14N158W 08N140W.

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

.ITCZ 06N140W 06N151W 09N160W 09N170W 04N170E 03N160E. ISOLATED
MODERATE TSTMS WITHIN 150 NM OF ITCZ W OF 170E.

.ISOLATED MODERATE TSTMS N OF 26N BETWEEN 178W AND 163W.

$$

.FORECASTER PIERCE. HONOLULU HI.