The High Seas Forecast for the South Pacific

High Seas Forecast Issued: 12/21/2024 08:38:37 PM UTC
                        
116
FZPS40 PHFO 211038
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 21 2024.
24 HOUR FORECAST VALID 0600 UTC DEC 22 2024.
48 HOUR FORECAST VALID 0600 UTC DEC 23 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 18S150W 1009 MB MOVING SE SLOWLY. TROUGH 10S162W 10S155W
12S152W TO LOW TO 19S148W 18S141W 21S138W 23S134W 21S130W 21S126W
23S121W MOVING S SLOWLY. N WINDS 20 TO 25 KT FROM 18S TO 21S
BETWEEN 138W AND 136W. E WINDS 20 TO 25 KT S OF LINE 25S135W
22S130W 22S125W 25S126W.
.24 HOUR FORECAST LOW NEAR 19S150W 1010 MB. TROUGH 09167W 10S155W
12S125W TO LOW TO 20S146W 20S142W 25S134W. NW TO N WINDS 20 TO 25
KT IN AREA BOUNDED BY 25S136W 18S143W 18S140W 20S134W 25S130W
25S136W.
.48 HOUR FORECAST LOW NEAR 20S147W 1012 MB. TROUGH 09S170W 14S150W
TO LOW TO 25S133W. WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH 25S171E 20S164E 20S160E MOVING E 10 KT ALONG 25S.
.24 HOUR FORECAST TROUGH 25S175E 20S169E 20S160E.
.48 HOUR FORECAST TROUGH 25S175W 24S178E 21S173E 24S165E 23S160E.
E TO SE WINDS 20 TO 30 KT S OF TROUGH W OF 166E. NW TO N WINDS 20
TO 25 KT FROM 13S TO 23S W OF 162E.

.TROUGH 20S172W 20S180W 19S177E MOVING S SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 17S167E 13S175E NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.N WINDS 20 TO 30 KT FROM 11S TO 16S BETWEEN 175E AND 178E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT N OF 04S BETWEEN 150W AND
145W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT N OF 05S BETWEEN 172W
AND 153W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 8 TO 9 FT N OF 03S BETWEEN 175E AND 165W.
.24 HOUR FORECAST SEAS 8 TO 9 FT N OF 04S BETWEEN 177W AND 162W.
.48 HOUR FORECAST SEAS 8 TO 12 FT S OF 15S W OF 162E. SEAS 8 TO 9
FT N OF 06S BETWEEN 175W AND 130W.

.SEAS 8 FT OR LESS REMAINDER OF FORECAST AREA.

.SCATTERED MODERATE TSTMS FROM 07S TO 12S W OF 166E...FROM 07S TO
14S BETWEEN 172E AND 178E...AND FROM 14S TO 20S BETWEEN 148W AND
134W. ISOLATED MODERATE TSTMS ELSEWHERE IN AREA BOUNDED BY 03S160E
05S180W 15S165W 25S165W 25S173E 15S160E 03S160E...AND FROM 14S TO
23S BETWEEN 165W AND 150W.

$$

.FORECASTER JELSEMA. HONOLULU HI.