The High Seas Forecast for the South Pacific

High Seas Forecast Issued: 12/22/2024 08:43:49 AM UTC
                        
242
FZPS40 PHFO 212243
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC SAT DEC 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 21 2024.
24 HOUR FORECAST VALID 1800 UTC DEC 22 2024.
48 HOUR FORECAST VALID 1800 UTC DEC 23 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 18S150W 1009 MB MOVING SW SLOWLY. TROUGH FROM 22S138W
TO LOW TO 10S155W. N WINDS 20 TO 25 KT FROM 22S TO 18S BETWEEN
133W AND 142W. SCATTERED MODERATE TSTMS S OF 12S BETWEEN 132W
AND 147W.
.24 HOUR FORECAST LOW NEAR 20S147W 1011 MB. NW TO N WINDS 20
TO 25 KT S OF 20S BETWEEN 130W AND 136W.
.48 HOUR FORECAST LOW NEAR 21S144W 1013 MB. WINDS DECREASED TO
20 KT OR BELOW.

.LOW NEAR 18S170E 1005 MB MOVING SE SLOWLY. TROUGH FROM 11S164E
TO LOW...AND FROM 25S172E TO LOW...AND FROM 19S165E TO LOW
MOVING SE 10 KT. NUMEROUS MODERATE TO STRONG TSTMS FROM 20S TO
04S W OF 178E.
.24 HOUR FORECAST LOW NEAR 19S172E 1005 MB. TROUGH FROM 25S177E
TO LOW...AND FROM 20S160E TO LOW. N WINDS 20 TO 25 KT FROM 20S
TO 15S BETWEEN 177E AND 172E.
.48 HOUR FORECAST LOW DISSIPATES. TROUGH FROM 23S178W TO 20S174E.
NW WINDS 20 TO 25 KT WITHIN 210 NM NE OF TROUGH.

.NEW LOW NEAR 24S160E 998 MB. TROUGH FROM LOW TO 22S171E. NW TO N
WINDS 20 TO 25 KT S OF 14S W OF 165E.

.24 HOUR FORECAST E WINDS 20 TO 25 KT N OF 05S BETWEEN 140W AND
170W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT N OF 07S BETWEEN 143W AND
172E. NW TO N WINDS 20 TO 25 KT WITHIN 120 NM OF A LINE FROM
25S161W TO 21S172W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.48 HOUR FORECAST SEAS 8 TO 12 FT S OF 15S W OF 163E. SEAS 8 TO 9
FT N OF LINE 00S175E 10S160W 05S130W 00S125W.

.SEAS 8 FT OR LESS REMAINDER OF FORECAST AREA.

.ISOLATED MODERATE TSTMS S OF 13S BETWEEN 173W AND 178E.

$$

.FORECASTER FOSTER. HONOLULU HI.