552
FZPS40 PHFO 180336
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 18 2024.
24 HOUR FORECAST VALID 0000 UTC SEP 19 2024.
48 HOUR FORECAST VALID 0000 UTC SEP 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 25S133W TO 22S136W TO 20S143W MOVING E SLOWLY.
NUMEROUS MODERATE TSTMS WITHIN 18S TO 25S BETWEEN FRONT AND 125W.
.24 HOUR FORECAST FRONT FROM 25S131W TO 21S135W. REMAINDER OF
FRONT DISSIPATED.
.48 HOUR FORECAST FRONT DISSIPATED.

.COLD FRONT FROM 25S161W TO 21S167W TO 17S174W THENCE A
STATIONARY FRONT TO 13S172E TO 11S160E. COLD FRONT MOVING E 15 KT
S OF 21S AND NE SLOWLY N OF 21S. WINDS NW TO N 20 TO 25 KT S OF
23S WITHIN 120 NM E OF FRONT. WINDS SE TO E 20 TO 30 KT WITHIN 300
NM S OF STATIONARY FRONT W OF 172E. ISOLATED MODERATE TSTMS
WITHIN 150 NM N OF STATIONARY FRONT.
.24 HOUR FORECAST FRONT FROM 25S153W TO 20S160W TO 17S170W TO
14S179E TO 11S169E. REMAINDER OF FRONT DISSIPATED. ASSOCIATED
WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 25S145W TO 20S160W TO 17S169W TO
13S179E TO 10S169E. WINDS INCREASING TO SE TO SW 20 TO 25 KT
WITHIN 180 NM S AND SW OF FRONT E OF 179E.

.TROUGH FROM 07S171E TO 10S174W TO 15S161W NEARLY STATIONARY.
ISOLATED MODERATE TSTMS WITHIN 180 NM EITHER SIDE OF TROUGH W OF
174W.
.24 HOUR FORECAST TROUGH FROM 07S171E TO 12S174W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW TROUGH FROM 05N168W TO 11N158W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 11 FT WITHIN AN AREA BOUND BY 18S172E 25S175W 25S160E
22S160E 18S172E.
.24 HOUR FORECAST SEAS 8 TO 11 FT WITHIN AN AREA BOUND BY 17S173E
20S175W 25S165W 25S160E 17S173E.
.48 HOUR FORECAST SEAS 8 TO 9 FT WITHIN AN AREA BOUND BY 12S176E
18S165W 25S160W 25S170E 12S176E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST

$$

.FORECASTER BEDAL. HONOLULU HI.