The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 12/08/2025 01:09:09 AM UTC
                        
145
FZPN40 PHFO 071509
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SUN DEC 07 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 07 2025.
24 HOUR FORECAST VALID 1200 UTC DEC 08 2025.
48 HOUR FORECAST VALID 1200 UTC DEC 09 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 30N179E 26N164E 27N160E MOVING E 25 KT. WINDS 20 TO 30 KT
N OF FRONT.
.24 HOUR FORECAST NEW LOW 26N164E 1010MB. FRONT 30N170W 27N180W
TO LOW TO 23N160E. WINDS 30 TO 35 KT WITHIN 90 NM N OF FRONT AND
LOW W OF 170E. WINDS 20 TO 30 KT ELSEWHERE N OF FRONT.
.48 HOUR FORECAST LOW 26N161E 1010 MB. FRONT 30N164W 22N175W
21N172E TO LOW. WINDS 20 TO 30 N OF FRONT.

.SYNOPSIS AND FORECAST.

.FRONT 30N166W 26N170W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT ABSORBED BY FRONT DESCRIBED ABOVE.

.TROUGH 19N175E 15N173E 09N171E MOVING NW 15 KT. ISOLATED TSTMS
FROM 10N TO 17N BETWEEN 177W AND 177E.
.24 HOUR FORECAST TROUGH 21N169E 11N165E.
.48 HOUR FORECAST TROUGH 20N164E 13N160E.

.WINDS 20 TO 25 KT FROM 05N TO 14N BETWEEN 171W AND 179E.

.24 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

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

.SEAS 2.5 TO 4 M N OF 03N BETWEEN 171W AND 160E.
.24 HOUR FORECAST SEAS 2.5 TO 4.5 M N OF LINE 30N168W 22N160E.
SEAS 2.5 TO 3 M FROM 04N TO 06N BETWEEN 153W AND 172E.
.48 HOUR FORECAST SEAS 2.5 TO 4.5 M N OF LINE 30N154W 23N170W
21N170E 21N160E.

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

.ITCZ 08N140W 06N152W 05N177W. ISOLATED MODERATE TSTMS WITHIN 90
NM OF ITCZ.


$$

.FORECASTER ALMANZA. HONOLULU HI.