643
FZPS40 PHFO 222220
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC THU MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAY 22 2025.
24 HOUR FORECAST VALID 1800 UTC MAY 23 2025.
48 HOUR FORECAST VALID 1800 UTC MAY 24 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S151W 21S155W THENCE TROUGH 15S167W 10S176W. FRONT
MOVING SE SLOWLY. TROUGH NEARLY STATIONARY. SCATTERED MODERATE
TSTMS FROM 15S TO 08S BETWEEN 179W AND 168W.
.24 HOUR FORECAST FRONT MOVED S OF AREA. TROUGH 25S145W 15S157W
09S177E 06S160E.
.48 HOUR FORECAST TROUGH 25S143W 17S157W 15S169W 02S164E.

.TROUGH 19S175E 10S168E 07S160E MOVING NE SLOWLY. SCATTERED
MODERATE TSTMS FROM 10S TO 03S W OF 169E. ISOLATED MODERATE
TSTMS FROM 14S TO 10S BETWEEN 171E AND 175E.
.24 HOUR FORECAST TROUGH MERGES WITH TROUGH DESCRIBED ABOVE.

.TROUGH 25S161E 22S164E MOVING S SLOWLY. ISOLATED MODERATE TSTMS
S OF 23S WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 25S161E 21S164E.
.48 HOUR FORECAST TROUGH MOVED S OF AREA.

.48 HOUR FORECAST WINDS 20 TO 25 KT S OF 18S BETWEEN 175W AND
158W.

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

.SEAS 2.5 TO 4 M S OF LINE 25S162W 20S168W 14S177E 25S160E. SEAS
2.5 TO 3 M E OF 132W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S150W 14S167W
15S178W 19S178W 18S170E 25S161E. SEAS 2.5 TO 3.5 M E OF 126W.
.48 HOUR FORECAST SEAS 2.5 TO 4.5 M S OF LINE 25S142W 15S164W
16S172W 17S169E 25S162E.

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

.ISOLATED MODERATE TSTMS FROM 06S TO 03S BETWEEN 174E AND 179E.

$$

.FORECASTER TROTTER. HONOLULU HI.