999
FZPS40 PHFO 162253
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC THU OCT 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 16 2025.
24 HOUR FORECAST VALID 1800 UTC OCT 17 2025.
48 HOUR FORECAST VALID 1800 UTC OCT 18 2025.

.WARNINGS.

...GALE WARNING...
.LOW NEAR 20S145W 1009 MB MOVING S 15 KT. OCCLUDED FRONT FROM
LOW TO 22S143W 21S142W 20S143W THENCE COLD FRONT 13S149W THENCE
TROUGH 10S158W MOVING SW SLOWLY. WINDS 20 TO 30 KT S OF 22S
BETWEEN 138W AND 148W. WINDS 30 TO 35 KT WITHIN 120 NM OF POINT
23S146W.
.24 HOUR FORECAST LOW NEAR 24S146W 1010 MB. FRONT 25S143W 20S145W
16S141W THENCE TROUGH 12S160W. WINDS DIMINISHING TO LESS THAN
20 KT.
.48 HOUR FORECAST LOW MOVED S OF AREA. FRONT 25S140W 20S145W
THENCE TROUGH 15S160W.

.SYNOPSIS AND FORECAST.

.FRONT 25S170W 21S178W MOVING E 15 KT.
.24 HOUR FORECAST FRONT 25S160W 22S162W.
.48 HOUR FORECAST FRONT 25S155W 21S158W.

.TROUGH 10S164W 11S180W 05S160E NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH 11S164W 09S168W 05S160W.
.48 HOUR FORECAST TROUGH 20S150W 13S160W 11S175W 10S160E.

.TROUGH 13S149W 10S158W MOVING SW 10 KT.
.24 HOUR FORECAST TROUGH 17S149W 13S155W 12S160W.
.48 HOUR FORECAST TROUGH MERGED WITH TROUGH MENTIONED IMMEDIATELY
ABOVE.

.WINDS 20 KT OR LESS OVER REMAINDER FORECAST AREA.

.SEAS 2.5 TO 3.5 M S OF 22S BETWEEN 140W AND 150W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF 22S BETWEEN 140W AND 150W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF 18S BETWEEN 180W AND 170E.

.SEAS 2.5 M OR LOWER OVER REMAINDER FORECAST AREA.

.SCATTERED MODERATE TSTMS FROM 15S TO 08S BETWEEN 150W AND
163W...AND FROM 18S TO 06S BETWEEN 168W AND 180W...AND
FROM 14S TO 09S BETWEEN 180W AND 170E...AND FROM 10S TO 05S
W OF 170E.

$$

.FORECASTER PECHACEK. HONOLULU HI.