521
FZPS40 PHFO 201529
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI SEP 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20 2024.
24 HOUR FORECAST VALID 1200 UTC SEP 21 2024.
48 HOUR FORECAST VALID 1200 UTC SEP 22 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 25S145W TO 21S147W TO 19S156W THENCE A
STATIONARY FRONT TO 17S168W TO 13S178E. COLD FRONT MOVING E 15 KT
S OF 21S AND NE SLOWLY N OF 21S. WINDS E TO SE 20 TO 25 KT AND
SEAS 8 TO 10 FT WITHIN 180 NM EITHER SIDE OF A LINE FROM 14S178E
TO 20S150W. ISOLATED MODERATE TSTMS WITHIN 90 NM EITHER SIDE OF
STATIONARY FRONT.
.24 HOUR FORECAST FRONT FROM 25S138W TO 21S144W TO 19S153W TO
17S168W. REMAINDER OF FRONT DISSIPATED. WINDS E TO SE 20 TO 25 KT
AND SEAS 8 TO 9 FT WITHIN 180 NM EITHER SIDE OF A LINE FROM
14S178E TO 20S150W.
.48 HOUR FORECAST FRONT FROM 25S131W TO 22S138W TO 21S144W TO
19S153W. REMAINDER OF FRONT DISSIPATED. WINDS E TO SE 20 TO 25 KT
WITHIN 120 NM EITHER SIDE OF A LINE FROM 16S154E TO 22S145W. SEAS
SUBSIDED TO 8 FT OR LOWER.

.TROUGH FROM 05S163E TO 10S168E TO 12S174E NEARLY STATIONARY.
ISOLATED MODERATE TSTMS WITHIN 150 NM EITHER SIDE OF TROUGH AXIS.
.24 HOUR FORECAST TROUGH FROM 04S160E TO 08S166E TO 13S171E.
.48 HOUR FORECAST TROUGH FROM 04S160E TO 11S168E.

.TROUGH FROM 06S172W TO 10S163W TO 12S151W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH FROM 06S176W TO 09S165W TO 12S155W.
.48 HOUR FORECAST TROUGH FROM 06S178E TO 11S169W TO 11S156W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

$$

.FORECASTER BEDAL. HONOLULU HI.