949
FZPS40 PHFO 220313
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC FRI AUG 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 22 2025.
24 HOUR FORECAST VALID 0000 UTC AUG 23 2025.
48 HOUR FORECAST VALID 0000 UTC AUG 24 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S155W 17S167W 09S175E 06S160E NEARLY STATIONARY. WINDS
20 TO 25 KT FROM 17S TO 08S W OF 173W. ISOLATED MODERATE TO
LOCALLY STRONG TSTMS FROM 11S TO 05S W OF 165E...AND WITHIN 270 NM
N OF TROUGH BETWEEN 170E AND 177W.
.24 HOUR FORECAST TROUGH 25S152W 19S170W 09S171E 08S160E. WINDS
20 TO 25 KT FROM 15S TO 08S W OF 173E.
.48 HOUR FORECAST TROUGH 25S164W 20S172W 11S170E 09S160E. WINDS
20 TO 25 KT FROM 23S TO 18S BETWEEN 167E AND 179E...AND S OF 21S
BETWEEN 167W AND 149W.

.TROUGH 12S168W 08S178E 04S170E MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 90 NM S OF TROUGH.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED ABOVE.

.48 HOUR FORECAST TROUGH NEAR 25S160E 18S160E.

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

.SEAS 2.5 TO 4 M S OF 05S W OF 173W EXCEPT FROM 22S TO 14S
BETWEEN 163E AND 169E...AND S OF 02S E OF 139W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 05S160E 05S176E
15S171W 21S156W 25S155W EXCEPT FROM 22S TO 19S BETWEEN 162E AND
168E...AND E OF LINE 02S120W 12S142W 25S125W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 11S160E 09S168E
16S176W 17S168W 00S168W 00S157W 06S159W 17S152W 25S138W EXCEPT S
OF 13S W OF 169E...AND E OF LINE 01S120W 10S132W 21S120W.

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

.ISOLATED MODERATE TSTMS FROM 23S TO 21S BETWEEN 127W AND 122W.

$$

.FORECASTER PIERCE. HONOLULU HI.