155
FZPS40 PHFO 210334
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC TUE MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 21 2024.
24 HOUR FORECAST VALID 0000 UTC MAY 22 2024.
48 HOUR FORECAST VALID 0000 UTC MAY 23 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S177W TO 19S172E THENCE TROUGH TO 15S165E TO
12S160E. FRONT MOVING E 15 KT AND TROUGH NEARLY STATIONARY.
ISOLATED MODERATE TSTMS FROM 12S TO 14S W OF 163E.
.24 HOUR FORECAST WEAKENING FRONT FROM 25S173W TO 22S180E
THENCE TROUGH TO 12S160E. SE WINDS 20 TO 25 KT FROM 13S TO
19S W OF 173E.
.48 HOUR FORECAST WEAK FRONT FROM 25S166W TO 22S176W THENCE
TROUGH TO 19S172E TO 13S160E. SE WINDS 20 TO 25 KT FROM 13S
TO 20S W OF 175E.

.TROUGH FROM 24S120W TO 16S135W TO 11S152W TO 10S167W TO
09S174W TO 04S175E. SE WINDS 20 TO 25 KT FROM 15S TO 20S
BETWEEN 135W AND 147W. SCATTERED MODERATE TO STRONG TSTMS
WITHIN 120 NM OF TROUGH BETWEEN 165W AND 177E. ISOLATED
MODERATE TSTMS FROM 19S TO 22S BETWEEN 127W AND 131W.
.24 HOUR FORECAST NEW FRONT FROM 25S120W TO 17S130W THENCE
TROUGH TO 15S140W TO 14S150W TO 09S172W TO 06S173E. SE WINDS
20 TO 25 KT FROM 14S TO 18S BETWEEN BETWEEN 138W AND 146W.
.48 HOUR FORECAST FRONT FROM 21S120W TO 18S127W THENCE TROUGH
TO 15S144W TO 10S172W TO 06S170E. 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 11 FT S OF A
LINE FROM 15S160E TO 20S170E TO 25S177E.
.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 02S TO 08S BETWEEN 175E AND 162E.

$$

.FORECASTER BIRCHARD. HONOLULU HI.