344
FZPS40 PHFO 251120
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC WED APR 25 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 25 2018.
24 HOUR FORECAST VALID 0600 UTC APR 26 2018.
48 HOUR FORECAST VALID 0600 UTC APR 27 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 25S138W TO 23S141W TO 17S157W THENCE A TROUGH TO
15S165W TO 10S169W TO 08S175W. FRONT MOVING E 10 KT S OF 20S...AND
NEARLY STATIONARY ELSEWHERE. TROUGH MOVING SW SLOWLY. NW WINDS 20 TO
25 KT WITHIN 180 NM E OF FRONT S OF 23S. SCATTERED MODERATE TSTMS
WITHIN 180 NM OF FRONT. ISOLATED MODERATE TSTMS WITHIN 60 NM N OF
TROUGH E OF 160W.
.24 HOUR FORECAST WEAKENING FRONT FROM 25S134W TO 20S143W. WINDS
EASED TO 20 KT OR LESS. TROUGH JOINED WITH FORECAST FRONT DESCRIBED
BELOW.
.48 HOUR FORECAST WEAK FRONT FROM 25S125W TO 22S132W TO 22S129W.

.24 HOUR FORECAST NEW FRONT FROM 25S159W TO 23S159W TO 18S163W
THENCE A TROUGH TO 10S173W.
.48 HOUR FORECAST FRONT FROM 25S151W TO 20S157W TO 16S163W THENCE A
TROUGH TO 11S177W. NW WINDS 20 TO 30 KT WITHIN 270 NM E OF FRONT S
OF 23S.

.24 HOUR FORECAST NEW LOW 23S161E 1010 MB. TROUGH FROM 25S161E TO
LOW TO 21S160E.
.48 HOUR FORECAST LOW MOVED S OF AREA. TROUGH BECOME A FRONT FROM
25S166E TO 17S160E.

.RIDGE FROM 23S120W TO 18S133W TO 14S147W TO 14S157W MOVING S SLOWLY.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 9 FT S OF 23S BETWEEN 155W AND 170W.
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 24S BETWEEN 131W AND 135W.
.48 HOUR FORECAST SEAS 8 TO 9 FT S OF 23S BETWEEN 126W AND 134W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ISOLATED MODERATE TSTMS W OF 160E S OF 14S...FROM 07S TO 14S
BETWEEN 164E AND 175W...N OF 07S W OF 166E...FROM 03S TO 06S BETWEEN
143W AND 151W...AND WITHIN 60 NM OF 13S173W.

$$

.HONOLULU FORECAST OFFICE.