689
FZPS40 PHFO 171500
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI MAY 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 17 2024.
24 HOUR FORECAST VALID 1200 UTC MAY 18 2024.
48 HOUR FORECAST VALID 1200 UTC MAY 19 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S130W TO 23S131W TO 13S144W TO 09S158W NEARLY
STATIONARY N OF 19S...MOVING E SLOWLY S OF 19S. S TO E WINDS 20
TO 25 KT AND SEAS 8 TO 11 FT S OF FRONT BETWEEN 140W AND 175W.
ISOLATED MODERATE TSTMS WITHIN 120 NM OF FRONT BETWEEN 157W TO
162W.
.24 HOUR FORECAST FRONT FROM 25S127W TO 18S133W TO 12S154W. N TO
SE WINDS 20 TO 25 KT AND SEAS 8 TO 12 FT S OF FRONT BETWEEN 130W
AND 168W.
.48 HOUR FORECAST FRONT FROM 25S121W TO 17S131W TO 11S153W. N TO
SE WINDS 20 TO 25 KT S OF FRONT TO 168W. SEAS DESCRIBED BELOW.

.TROUGH FROM 25S179W TO 17S176E MOVING W 10 KT. SE WINDS 20 TO 25
KT W OF A LINE FROM TROUGH TO 08S160E. SEAS 8 TO 9 FT S OF 23S
BETWEEN TROUGH AND 168E.
.24 HOUR FORECAST TROUGH FROM 25S175E TO 15S169E.
.48 HOUR FORECAST TROUGH FROM 25S179E TO 11S160E.

.TROUGH FROM 11S172E TO 06S160E MOVING S 10 KT. SCATTERED MODERATE
TSTMS WITHIN 180 NM OF TROUGH W OF 168E.
.24 HOUR FORECAST TROUGH FROM 14S172E TO 08S160E.
.48 HOUR FORECAST TROUGH MERGED WITH TROUGH MENTIONED ABOVE.

.E TO SE WINDS 20 TO 30 KT S 10S BETWEEN 145W AND 179E.
.24 HOUR FORECAST E TO SE WINDS 20 TO 30 KT S OF 11S BETWEEN 145W
AND 170W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT S OF 13S BETWEEN 140W AND
170W.

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 TO 9 FT S OF A LINE FROM 13S120W AND 20S140W.
.24 HOUR FORECAST SEAS 8 FT OR UNDER.
.48 HOUR FORECAST SEAS 8 TO 13 FT S OF A LINE FROM 25S122W TO
11S168W.

.OTHERWISE...SEAS 8 FT OR UNDER OVER REMAINDER OF FORECAST AREA.

.NUMEROUS STRONG TO MODERATE TSTMS WITHIN 180 NM OF A LINE FROM
14S163W TO 04S177W. ISOLATED MODERATE TSTMS WITHIN 90 NM OF
02S164E.



$$

.FORECASTER BLOOD. HONOLULU HI.