878
FZPS40 PHFO 122203
HSFSP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SEP 12 2025.
24 HOUR FORECAST VALID 1800 UTC SEP 13 2025.
48 HOUR FORECAST VALID 1800 UTC SEP 14 2025.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.FRONT 25S179E 20S170E 19S160E MOVING ENE 30 KT. WINDS 20 TO 25 KT
S OF 24S BETWEEN 175W AND 173E.
.24 HOUR FORECAST FRONT 25S168W 21S175W 18S175E THENCE TROUGH
16S160E. WINDS 20 TO 25 KT S OF 24S BETWEEN 157W AND 172W...AND
FROM 21S TO 14S W OF 175E.
.48 HOUR FORECAST FRONT 25S153W 20S166W 17S175W THENCE TROUGH
17S175E 15S160E. WINDS 20 TO 25 KT FROM 23S TO 15S W OF 173E.
.TROUGH 15S177E 13S167E 08S160E MOVING SW SLOWLY. ISOLATED MODERATE
WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 13S170E 09S160E.
.48 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED ABOVE.
.TROUGH 25S145W 20S149W 16S152W MOVING E SLOWLY S OF 20S AND NEARLY
STATIONARY N OF 20S. ISOLATED MODERATE TSTMS WITHIN 180 NM E OF
TROUGH.
.24 HOUR FORECAST TROUGH 25S143W 22S143W 16S151W.
.48 HOUR FORECAST TROUGH 20S152W 15S155W.
.24 HOUR FORECAST NEW TROUGH 25S160W 14S166W.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED ABOVE.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
SEAS 2.5 TO 3.5 M S OF LINE 25S180E 21S160E
AND S OF 09S E OF
130W.
.24 HOUR FORECAST SEAS 2.5 TO 3.5 M S OF LINE 25S170W 19S175E
17S160E. SEAS 2.5 TO 3 M FROM 23S TO 05S E OF 127W.
.48 HOUR FORECAST SEAS 2.5 TO 3.5 M S OF LINE 25S164W 14S175E
14S160E. SEAS 2.5 TO 3 M FROM 13S TO 05S E OF 124W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.FORECASTER WROE. HONOLULU HI.
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