The High Seas Forecast for the South Pacific

High Seas Forecast South Pacific Issued: 04/19/2024 05:18:00 AM HST
000
FZPS40 PHFO 191518
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1200 UTC APR 19 2024.
24 HOUR FORECAST VALID 1200 UTC APR 20 2024.
48 HOUR FORECAST VALID 1200 UTC APR 21 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 13S133W TO 16S135W TO 18S120W NEARLY STATIONARY.
E TO SE WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT S OF 18S E OF
150W.
.24 HOUR FORECAST TROUGH FROM 15S135W TO 15S125W TO 20S120W.
E TO SE WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT S OF 19S E OF
140W.
.48 HOUR FORECAST TROUGH FROM 14S124W TO 17S120W. E TO SE
WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT S OF 19S E OF 140W.

.TROUGH FROM 16S161W TO 25S156W MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 360 NM E OF TROUGH S OF 20S.
.24 HOUR FORECAST TROUGH ABSORBED BY FRONT MENTIONED RIGHT
BELOW.

.FRONT FROM 21S173W TO 23S160W TO 25S157W MOVING E SLOWLY.
ISOLATED MODERATE TSTMS WITHIN 300 NM E OF FRONT S OF 20S.
.24 HOUR FORECAST FRONT FROM 20S160W TO 25S150W.
.48 HOUR FORECAST FRONT FROM 20S160W TO 25S157W.

.TROUGH FROM 10S162E TO 16S174E MOVING SW SLOWLY. WINDS 20
TO 25 KT AND SEAS 8 TO 10 FT FROM 20S TO 15S BETWEEN 165E AND
175W. ISOLATED MODERATE TSTMS WITHIN 240 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 08S168E TO 16S1708.
.48 HOUR FORECAST TROUGH MOVES S OF OUR FORECAST AREA

.48 HOUR FORECAST NEW TROUGH FROM 21S160E TO 25S154E.
E TO SE WINDS 20 TO 30 KT AND SEAS 8 TO 11 FT S OF TROUGH.

.TROUGH FROM 03S177E TO 08S170W. SCATTERED MODERATE TSTMS
WITHIN 240 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 02S128W TO 08S126W MOVING W SLOWLY. SCATTERED
STRONG TSTMS WITHIN 240 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.E TO SE WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT FROM 20S TO 15S
BETWEEN 175E AND 170W.
.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT
FROM 20S TO 17S BETWEEN 177W AND 170E.
.48 HOUR FORECAST WINDS 20 TO 30 KT S OF 20S W OF 170E.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF AREA.

.ITCZ FROM 04S175E 08S172W...AND FROM 00S125W TO 05S120W. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF ITCZ W OF 165W AND WITHIN 90 NM OF
ITCZ E OF 165W.

.ISOLATED MODERATE TSTMS FROM 09S TO 05S E OF 123W...AND FROM 16S
TO 11S W OF 163E.



$$

.FORECASTER PECHACEK. HONOLULU HI.