791
FZPS40 PHFO 181517
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC WED SEP 18 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE OFFSHORE AND HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP


SECURITE

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 1200 UTC SEP 18 2024.
24 HOUR FORECAST VALID 1200 UTC SEP 19 2024.
48 HOUR FORECAST VALID 1200 UTC SEP 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S157W 21S162W 18S170W 14S179E 11S170E 11S160E. FRONT
MOVING E 15 KT S OF 18S AND NE SLOWLY N OF 18S.
.24 HOUR FORECAST FRONT 25S147W 23S149W 21S161W 13S178E 10S171E.
.48 HOUR FORECAST FRONT WEAKENS TO TROUGH 25S140W 18S153W 14S163W
13S166W.

.TROUGH 15S159W 10S174W 06S171E NEARLY STATIONARY. ISOLATED
MODERATE TSTMS WITHIN 120 NM S OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.WINDS 20 TO 25 KT FROM 16S TO 12S W OF 175E.
.24 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 13 FT S OF LINE 25S165E 24S167E 24S173E 25S176E. SEAS 8
TO 12 FT ELSEWHERE S OF LINE 19S160E 19S163E 23S167E 17S174E
25S169W. SEAS 8 TO 9 FT FROM 17S TO 11S W OF 164E.
.24 HOUR FORECAST SEAS 8 TO 11 FT S OF LINE 25S166E 12S173E
13S178E 18S170W 25S160W.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 20S TO 10S BETWEEN 173E
AND 179E. SEAS 8 TO 9 FT S OF LINE 12S167W 21S170W 19S178W 14S176W
17S160W 25S153W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST.

.ISOLATED MODERATE TSTMS S OF 15S E OF 132W.


$$

.FORECASTER PIERCE. HONOLULU HI.