810
FZPS40 PHFO 162246
HSFSP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC TUE SEP 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E
SYNOPSIS VALID 1800 UTC SEP 16 2025.
24 HOUR FORECAST VALID 1800 UTC SEP 17 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 18 2025.
.WARNINGS.
..GALE WARNING
.TROUGH 20S145W 13S160W 05S169W MOVING SW 10 KT.
.24 HOUR FORECAST TROUGH 19S162W 11S168W 04S174W. WINDS 20 TO 30
KT S OF LINE 25S175W 17S171E 08S171E 15S165W 17S153W 25S162W.
.48 HOUR FORECAST NEW LOW 19S162W 1011 MB. TROUGH FROM 22S160W TO
LOW TO 11S168W TO 04S177W. WINDS 30 TO 35 KT IN AREA BOUNDED BY
24S157W 21S164W 17S164W 17S162W 22S152W 24S157W. WINDS 20 TO 30 KT
ELSEWHERE S OF 15S BETWEEN 175W AND 140W.
.SYNOPSIS AND FORECAST.
.FRONT 25S138W 21S145W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT 25S132W 23S138W.
.48 HOUR FORECAST FRONT 25S130W 23S133W.
.TROUGH 15S168W 10S177W 04S177E MOVING SW SLOWLY.
.24 HOUR FORECAST TROUGH 19S172W 08S178E 04S173E.
.48 HOUR FORECAST TROUGH 11S178E 06S168E 04S160E.
.WINDS 20 TO 25 KT FROM 20S TO 08S W OF 177E.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 18S TO 05S W OF 171E.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 19S TO 10S W OF 179E.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 4 M S OF LINE 25S179W 21S168E 08S168E 08S177E
19S177E 18S178W 14S178W 16S160W 25S146W. SEAS 2.5 TO 3.5 M FROM
19S TO 09S W OF 166E.
.24 HOUR FORECAST SEAS 2.5 TO 4 M IN AREA BOUNDED BY 25S168W
21S170E 12S167E 18S165E 18S160E 09S160E 11S162E 06S160E 06S170E
14S169W 09S160W 25S137W 25S168W.
.48 HOUR FORECAST SEAS 4 TO 5 M FROM 22S TO 18S IN AREA BOUNDED
BY 23S156W 21S162W 17S167W 14S165W 22S155W 23S156W. SEAS 2.5 TO 4
M ELSEWHERE S OF LINE 25S172W 18S169E 12S167E 14S161E 08S161E
10S167W 13S161W 07S151W 10S146W 17S152W 25S128W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ISOLATED MODERATE TSTMS FROM 10S TO 04S W OF 170E.
.FORECASTER TROTTER. HONOLULU HI.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page