431
FZPS40 PHFO 121518
HSFSP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI SEP 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 12 2025.
24 HOUR FORECAST VALID 1200 UTC SEP 13 2025.
48 HOUR FORECAST VALID 1200 UTC SEP 14 2025.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 25S174E 22S168E 19S160E MOVING NE 30 KT. WINDS 20 TO 25 KT
S OF 24S BETWEEN 172E AND 177E.
.24 HOUR FORECAST FRONT 25S170W 23S171E THENCE TROUGH 18S171E
17S160E. WINDS 20 TO 25 KT FROM 21S TO 17S BETWEEN 163W AND 169W.
.48 HOUR FORECAST FRONT 25S154W 21S158W THENCE TROUGH 15S166W
11S179W 11S160E. WINDS 20 TO 25 KT FROM 23S TO 15S W OF 173E.
.TROUGH 12S179E 12S170E 08S163E MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS FROM 18S TO 03S W OF 178E.
.24 HOUR FORECAST TROUGH 15S169E 09S160E.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED ABOVE.
.FRONT 25S144W 24S145W THENCE TROUGH 20S149W 15S154W. FRONT
MOVING E 10 KT. TROUGH NEARLY STATIONARY. ISOLATED MODERATE TSTMS
WITHIN 210 NM OF FRONT AND TROUGH.
.24 HOUR FORECAST FRONT DISSIPATED. TROUGH 25S140W 22S143W
19S150W 15S151W.
.48 HOUR FORECAST TROUGH DISSIPATED.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
SEAS 2.5 TO 4 M S OF LINE 25S177E 21S160E
AND S OF 08S E OF
133W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S172W 18S172E
22S167E 15S163E 16S160E. SEAS 2.5 TO 3 M S OF 03S E OF 130W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 25S163W 17S176W
19S178E 11S179E 11S175E 17S168E 13S160E...EXCEPT FROM 22S TO 18S
BETWEEN 164E AND 170E. SEAS 2.5 TO 3 M FROM 15S TO 03S E OF 127W.
.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