908
FZPS40 PHFO 092247
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC SAT AUG 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 09 2025.
24 HOUR FORECAST VALID 1800 UTC AUG 10 2025.
48 HOUR FORECAST VALID 1800 UTC AUG 11 2025.

.WARNINGS.

...GALE WARNING...
.LOW 25S163E 1009 MB. TROUGH FROM LOW TO 24S165E AND FROM LOW
TO 25S160E. WINDS 30 TO 35 KT WITHIN 120 NM OF LOW. WINDS 20
TO 30 KT ELSEWHERE WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST DEVELOPING LOW NEAR 25S167E 1008 MB. TROUGH
FROM LOW TO 19S162E. WINDS 30 TO 35 KT WITHIN 150 NM OF W OF
LOW. WINDS 20 TO 30 KT ELSEWHERE S OF 25S164E 22S160E. WINDS
20 TO 25 KT S OF 24S BETWEEN 172E AND 168E.
.48 HOUR FORECAST LOW MOVED S OF AREA. TROUGH 25S171E 14S167E.
WINDS 20 TO 30 KT S OF 21S BETWEEN 177E AND 173E.

.SYNOPSIS AND FORECAST.

.TROUGH 25S153W 15S160W 08S170W 09175E.
FRONT MOVING E 20 KT AND TROUGH NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED. FRONT 25S146W 21S150W
THENCE TROUGH TO 18S153W.
.48 HOUR FORECAST FRONT DISSIPATED.

.TROUGH 25S175W 23S180W MOVING E 20 KT.
.24 HOUR FORECAST FRONT 25S170W 23S180W.
.48 HOUR FORECAST FRONT DISSIPATED.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 2.5 TO 4 M S OF 22S W OF 175E...AND S OF 22S
BETWEEN 165W AND 145W...AND WITHIN 90 NM OF LINE 15S130W
10S125W 05S120W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 20S160E
25S178W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 18S160E
20S180W 25S165W.

.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.ISOLATED MODERATE TSTMS WITHIN 120 NM OF LINE 13S169E
13S180W 07S170W.

$$

.FORECASTER PECHACEK. HONOLULU HI.