The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 12/27/2025 08:17:48 PM UTC
                        
063
FZPN40 PHFO 271017
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 27 2025.
24 HOUR FORECAST VALID 0600 UTC DEC 28 2025.
48 HOUR FORECAST VALID 0600 UTC DEC 29 2025.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N164W 24N168W 21N171W 17N177W MOVING E 15 KT. WINDS 20 TO
25 KT N OF 25N BETWEEN FRONT AND 162W. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF FRONT N OF 21N.
.24 HOUR FORECAST FRONT 30N157W 24N162W 21N167W 18N175W. WINDS 20
TO 30 KT N OF 25N BETWEEN FRONT AND 152W...AND N OF 28N BETWEEN
173W AND 162W.
.48 HOUR FORECAST FRONT 30N152W 24N159W 21N166W 18N173W. WINDS
EASED 20 KT OR LESS.

.24 HOUR FORECAST NEW FRONT 30N161E 29N160E.
.48 HOUR FORECAST FRONT 30N169E 26N166E 23N160E. WINDS 20 TO 25
KT N OF 26N BETWEEN 166E AND 171E.

.SEAS 2.5 TO 4 M N OF LINE 30N173E 10N175E 18N160E 04N160E 09N179E
30N161W...AND E OF LINE 30N147W 22N154W 08N169W 00N157W.

.24 HOUR FORECAST SEAS 4 TO 5 M N OF LINE 30N178W 28N170W
30N164W. SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 30N173E 23N175W
30N154W. SEAS 2.5 TO 3 M E OF LINE 27N140W 21N153W 12N154W
13N140W
.48 HOUR FORECAST SEAS 2.5 TO 4 M N OF LINE 25N160E 20N179E
21N165W 30N151W. SEAS 2.5 TO 3 M E OF LINE 24N140W 21N148W 13N150W
12N140W.

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

.ITCZ 07N140W 08N143W 10N160W 09N165W 07N179W. ISOLATED MODERATE
TSTMS FROM 13N TO 05N BETWEEN 166W AND 151W...AND WITHIN 90 NM OF
ITCZ ELSEWHERE.

.ISOLATED MODERATE TSTMS FROM 06N TO 02N W OF 169E.

$$

.FORECASTER PIERCE. HONOLULU HI.