FZPN40 PHFO 151512
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON DEC 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 15 2025.
24 HOUR FORECAST VALID 1200 UTC DEC 16 2025.
48 HOUR FORECAST VALID 1200 UTC DEC 17 2025.

.WARNINGS.

...GALE WARNING...
.FRONT 30N168W 23N175W 21N176E 25N165E MOVING SE 15 KT. WINDS 30 
TO 40 KT N OF 23N BETWEEN 166W AND 177E. WINDS 20 TO 30 KT
ELSEWHERE N OF 21N BETWEEN 162W AND 174E. NUMEROUS MODERATE TSTMS
WITHIN 300 NM E OF FRONT N OF 24N. 
.24 HOUR FORECAST FRONT 30N161W 20N174W 19N173E. SECOND FRONT 
30N170W 26N174W 30N177E. WINDS 30 TO 40 KT N OF 24N BETWEEN 170W 
AND 178W. WINDS 20 TO 30 KT ELSEWHERE N OF LINE 30N156W 21N162W 
20N176W 30N177E. 
.48 HOUR FORECAST FRONT 30N153W 19N165W 17N180E 20N170E. SECOND 
FRONT 30N160W 24N176W 21N176E. WINDS 30 TO 35 KT N OF 26N BETWEEN 
151W AND 164W. WINDS 20 TO 30 KT ELSEWHERE N OF 22N BETWEEN 144W 
AND 177W. 

.SYNOPSIS AND FORECAST.

.FRONT 30N145W 25N154W THENCE TROUGH 20N162W. TROUGH MOVING N
SLOWLY AND FRONT NEARLY STATIONARY AND DISSIPATING. ISOLATED 
MODERATE TSTMS WITHIN 120 NM OF FRONT AND TROUGH. 
.24 HOUR FORECAST FRONT AND TROUGH DISSIPATED.

.06 HOUR FORECAST NEAR NEW FRONT NEAR 30N160E. S WINDS 20 TO 30 
KT N OF 27N W OF 165E. 
.24 HOUR FORECAST FRONT 30N168E 27N167E 24N160E. WINDS 20 TO 25 
KT WITHIN 90 NM OF FRONT. 
.48 HOUR FORECAST FRONT 30N171E 25N170E 22N166E 22N160E. WINDS 
20TO 25 KT N OF FRONT. 

.TROUGH 15N160W 08N174W MOVING W SLOWLY. ISOLATED MODERATE TSTMS
WITHIN 60 NM OF TROUGH. 
.24 HOUR FORECAST TROUGH DISSIPATED.

.SEAS 4 TO 7 M N OF 24N BETWEEN 171W AND 171E. SEAS 2.5 TO 4 M 
ELSEWHERE N OF LINE 30N140W 08N170W 13N160E.
.24 HOUR FORECAST SEAS 4 TO 7.5 M N OF 19N BETWEEN 163W AND 174E.
SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 07N140W 06N170W 12N170E 
27N160E. 
.48 HOUR FORECAST SEAS 4 TO 5.5 M N OF 22N BETWEEN 154W AND 180W.
SEAS 2.5 TO 4 M ELSEWHERE N OF LINE 05N140W 07N170E 18N160E.

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

.ITCZ 04N140W 05N170W 01N174E. ISOLATED MODERATE TSTMS WITHIN 180
NM N OF ITCZ BETWEEN 146W AND 178W. 


$$

.FORECASTER ALMANZA. HONOLULU HI.