712
FZPS40 PHFO 202325
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC MON MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1800 UTC MAY 20 2024.
24 HOUR FORECAST VALID 1800 UTC MAY 21 2024.
48 HOUR FORECAST VALID 1800 UTC MAY 22 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S178W TO 18S172E THENCE TROUGH TO 13S165E TO
08S160E. FRONT MOVING E 15 KT AND TROUGH NEARLY STATIONARY.
ISOLATED MODERATE TSTMS WITHIN 150 NM S OF TROUGH BETWEEN
161E AND 166E.
.24 HOUR FORECAST WEAKENING FRONT FROM 25S175W TO 20S174E
THENCE TROUGH TO 12S160E. SE WINDS 20 TO 25 KT FROM 15S TO
20S W OF 170E.
.48 HOUR FORECAST WEAK FRONT FROM 25S165W TO 22S177W THENCE
TROUGH TO 19S170E TO 14S160E. SE WINDS 20 TO 25 KT FROM 13S
TO 20S W OF 175E.

.TROUGH FROM 22S120W TO 11S147W TO 10S161W TO 08S173W TO
05S178E. SE WINDS 20 TO 25 KT S OF 12S BETWEEN 141W AND
158W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 120 NM
OF TROUGH BETWEEN 164W AND 180W...AND WITHIN 240 NM S OF
TROUGH BETWEEN 129W AND 144W.
.24 HOUR FORECAST NEW FRONT FROM 25S122W TO 19S128W THENCE
TROUGH TO 12S148W TO 10S160W TO 08S174E. SE WINDS 20 TO
25 KT FROM 14S TO 19S BETWEEN BETWEEN 133W AND 143W.
.48 HOUR FORECAST FRONT FROM 22S120W TO 19S127W THENCE TROUGH
TO 15S142W TO 10S176W TO 05S170E. ASSOCIATED WINDS DIMINISHED
TO 20 KT OR LESS.

.SEAS 8 TO 11 FT S OF A LINE FROM 23S120W TO 16S140W TO
12S160W. ALSO SEAS 8 TO 10 FT S OF A LINE FROM 20S160E TO
25S167E.
.24 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE FROM 22S120W TO
14S140W TO 08S160W TO 10S170W. ALSO SEAS 8 TO 10 FT S OF 22S
BETWEEN 175E AND 162E.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF A LINE FROM 23S120W TO
14S140W TO 10S170W. ALSO SEAS 8 TO 10 FT S OF A LINE FROM
15S160E TO 17S170E TO 25S177W.

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

.ISOLATED MODERATE TSTMS FROM 01 TO 08S BETWEEN 177E AND 162E.

$$

.FORECASTER BIRCHARD. HONOLULU HI.