The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 12/28/2025 01:05:35 AM UTC
                        
982
FZPN40 PHFO 271505
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SAT DEC 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC DEC 27 2025.
24 HOUR FORECAST VALID 1200 UTC DEC 28 2025.
48 HOUR FORECAST VALID 1200 UTC DEC 29 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N163W 27N165W 24N168W 19N174W MOVING E 15 KT. WINDS 20
TO 25 KT N OF LINE 30N178E 28N179W 29N170W 24N166W 30N155W.
SCATTERED MODERATE TSTMS WITHIN 120 NM OF FRONT N OF 22N.
.24 HOUR FORECAST FRONT 30N155W 25N159W 21N166W 18N172W. WINDS 20
TO 30 KT N OF LINE 30N155W 26N155W 30N149W.
.48 HOUR FORECAST FRONT 30N152W 25N159W THENCE TROUGH 21N165W
18N173W. WINDS EASED 20 KT OR LESS.

.24 HOUR FORECAST NEW FRONT 30N161E 28N160E.
.48 HOUR FORECAST FRONT 30N171E 26N166E 23N160E. WINDS 20 TO 25
KT N OF LINE 30N171E 26N168E 30N175E.

.SEAS 2.5 TO 4 M N OF LINE 30N174E 19N179E 17N160E 04N160E
06N178E 13B172W 30N159W...AND E OF LINE 28N140W 23N158W 08N163W
01N156W 02N140W.
.24 HOUR FORECAST SEAS 4 TO 5 M N OF LINE 30N178W 28N169W
30N162W. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N171E 24N178W
26N162W 30N151W. SEAS 2.5 TO 3 M E OF LINE 30N146W 22N150W 09N153W
11N140W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 23N160E 18N179W
23N156W 30N150W. SEAS 2.5 TO 3 M E OF LINE 26N140W 23N151W 08N156W
10N140W.

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

.ITCZ 07N140W 07N151W 09N158W 08N169W 07N176W 07N178E. ISOLATED
MODERATE TSTMS FROM 14N TO 07N BETWEEN 171W AND 153W...AND WITHIN
90 NM OF ITCZ ELSEWHERE.

.ISOLATED MODERATE TSTMS S OF 06N W OF 166E.


$$

.FORECASTER PIERCE. HONOLULU HI.