High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 252315
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC SAT APR 25 2015

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 25 2015.
24 HOUR FORECAST VALID 1800 UTC APR 26 2015.
48 HOUR FORECAST VALID 1800 UTC APR 27 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 11S178W 1009 MB MOVING SE SLOWLY. TROUGH FROM LOW TO 06S168E.
SCATTERED MODERATE TSTMS WITHIN 300 NM NE SEMICIRCLE...AND WITHIN
180 NM SW SEMICIRCLE. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 240
NM N OF TROUGH.
.24 HOUR FORECAST LOW 13S177W 1009 MB. TROUGH FROM LOW TO 09S179E TO
03S178E.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 12S179W TO 04S175E.

.FRONT FROM 25S154W TO 20S161W TO 15S176W NEARLY STATIONARY.
ISOLATED TSTMS WITHIN 120 NM OF FRONT.
.24 HOUR FORECAST FRONT FROM 25S158W TO 14S176W.
.48 HOUR FORECAST FRONT FROM 25S156W TO 19S161W TO 14S179W.

.FRONT FROM 25S161E TO 23S160E MOVING E SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 240 NM E OF FRONT.
.24 HOUR FORECAST FRONT 25S166E TO 19S160E.
.48 HOUR FORECAST FRONT 25S171E TO 22S168E TO 19S160E.

.TROUGH FROM 21S120W TO 14S131W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH FROM 21S120W TO 18S127W.
.48 HOUR FORECAST TROUGH FROM 21S120W TO 17S126W.

.TROUGH FROM 15S157W TO 08S159W MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 90 NM OF TROUGH S OF 10S.
.24 HOUR FORECAST TROUGH FROM 14S161W TO 07S164W.
.48 HOUR FORECAST TROUGH FROM 16S162W TO 07S170W.

.TROUGH FROM 14S166W TO 05S169W MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 120 NM E OF TROUGH S OF 11S.
.24 HOUR FORECAST TROUGH FROM 12S167W TO 06S169W.
.48 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED ABOVE.

.RIDGE FROM 25S145W TO 20S154W NEARLY STATIONARY.

.RIDGE FROM 25S178W TO 21S165W MOVING E SLOWLY.

.RIDGE FROM 25S170E TO 13S161E MOVING SE SLOWLY.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 8 TO 10 FT S OF A LINE FROM 23S164W TO 20S171W TO 25S174E.
.24 HOUR FORECAST SEAS DIMINISHED TO 8 FT OR LESS.
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF 20S E OF 138W.

.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.

.SCATTERED MODERATE TSTMS N OF 03S BETWEEN 124W AND 130W...AND N OF
04S BETWEEN 175W AND 179E.

$$

.FORECASTER BRAVENDER. HONOLULU HI.




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