797
FZPS40 PHFO 172310
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC FRI OCT 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17 2025.
24 HOUR FORECAST VALID 1800 UTC OCT 18 2025.
48 HOUR FORECAST VALID 1800 UTC OCT 19 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 24S147W 1010 MB MOVING SE 15 KT. FRONT 25S145W 18S150W
THENCE TROUGH 15S160W 12S170W 12S174W 16S174E 07S160E MOVING
SE 15 KT S OF 20S ELSEWHERE NEARLY STATIONARY.
.24 HOUR FORECAST LOW MOVED S OF AREA. FRONT 25S142W 20S146W
THENCE TROUGH 15S160W 12S173W 10S160E.
.48 HOUR FORECAST FRONT 25S140W 20S150W THENCE TROUGH 15S160W.

.TROUGH 25S168W 24S171W MOVING E 15 KT.
.24 HOUR FORECAST TROUGH 25S155W 20S169W.
.48 HOUR FORECAST TROUGH 25S152W 20S160W 19S166W.

.48 HOUR NEW LOW 16S169E 1009 MB. TROUGH FROM LOW TO 15S170E.
WINDS 20 TO 30 KT FROM 25S TO 15S BETWEEN 180W AND 165E.

.WINDS 20 KT OR LESS OVER REMAINDER FORECAST AREA.

.SEAS 2.5 TO 3.5 M S 22S BETWEEN 143W AND 150W...AND S OF 22S
BETWEEN 175E AND 168E.
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF 15S BETWEEN 180W AND 170E.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF LINE 30S168E 15S180W
15S170W 25S169W.

.SEAS 2.5 M OR LOWER OVER REMAINDER FORECAST AREA.

$$

.FORECASTER PECHACEK. HONOLULU HI.