420
FZPS40 PHFO 131513
HSFSP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SAT SEP 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 13 2025.
24 HOUR FORECAST VALID 1200 UTC SEP 14 2025.
48 HOUR FORECAST VALID 1200 UTC SEP 15 2025.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 25S171W 20S177E MOVING ENE 30 KT.
.24 HOUR FORECAST FRONT 25S155W 18S162W THENCE TROUGH 10S171W
10S160E. WINDS 20 TO 25 KT FROM 20S TO 13S W OF 173E.
.48 HOUR FORECAST FRONT 25S148W 21S157W THENCE TROUGH 10S174W
11S160E. WINDS 20 TO 25 KT FROM 20S TO 15S W OF 175E.
.TROUGH 12S170E 10S160E NEARLY STATIONARY. ISOLATED MODERATE
WITHIN 210 NM N OF TROUGH.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED ABOVE.
.TROUGH 25S142W 21S144W MOVING SE SLOWLY. ISOLATED MODERATE TSTMS
S OF 22S BETWEEN TROUGH AND 139W.
.24 HOUR FORECAST TROUGH DISSIPATED.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
SEAS 2.5 TO 3.5 M S OF LINE 25S171W 19S171E 22S167E 17S160E
AND
S OF 04S E OF 129W.
.24 HOUR FORECAST SEAS 2.5 TO 3.0 M S OF LINE 25S163W 18S176W
18S177E 11S179E 11S176E 16S168E 13S160E...AND FROM 17S TO 03S E OF
126W.
.48 HOUR FORECAST SEAS 2.5 TO 3.5 M S LINE 25S157W 09S179E
09S175E 16S168E 13S160E.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.FORECASTER PIERCE. HONOLULU HI.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page