The High Seas Forecast for the South Pacific

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FZPS40 PHFO 230515
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SAT MAY 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 23 2015.
24 HOUR FORECAST VALID 0000 UTC MAY 24 2015.
48 HOUR FORECAST VALID 0000 UTC MAY 25 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 24S144W 1015 MB. COLD FRONT FROM LOW TO 18S150W TO 15S156W
MOVING E 10 KT THENCE A DISSIPATING STATIONARY FRONT TO 13S166W TO
12S176W. SEAS 8 TO 10 FT WITHIN A POLYGON BOUNDED BY 12S164W 19S140W
25S125W 25S162W 16S172W 12S164W. ISOLATED MODERATE TSTMS WITHIN 90
NM OF STATIONARY FRONT.
.24 HOUR FORECAST LOW MOVED S OF FORECAST AREA. FRONT FROM 25S137W
TO 23S142W TO 20S150W. SEAS 8 TO 9 FT WITHIN A POLYGON BOUNDED BY
17S130W 22S120W 25S120W 25S153W 20S145W 17S130W.
.48 HOUR FORECAST DISSIPATING FROM FROM 25S131W TO 22S140W.
ASSOCIATED SEAS SUBSIDED TO 8 FT OR LOWER.

.COMPLEX LOW WITH PRIMARY CENTER NEAR 09S173E 1011 MB. SECONDARY
CENTER NEAR 03S163E 1011 MB. SCATTERED MODERATE TO STRONG TSTMS N OF
12S W OF 179E.
.48 HOUR FORECAST LOWS DISSIPATED.

.COLD FRONT FROM 25S167E TO 21S160E MOVING E 10 KT. WINDS 20 TO 25
KT S OF 23S WITHIN 300 NM EITHER SIDE OF FRONT. SEAS BUILDING TO 8
TO 11 FT SW OF A LINE FROM 22S160E 25S171E.
.24 HOUR FORECAST FRONT FROM 25S179E TO 21S172E TO 20S167E. WINDS 20
TO 30 KT S OF 23S WITHIN 480 NM E OF FRONT. SEAS BUILDING 8 TO 13 FT
SW OF A LINE FROM 20S160E TO 25S179E.
.48 HOUR FORECAST FRONT FROM 25S172W TO 21S179E. WINDS DIMINISHED TO
20 KT OR LESS. SEAS 8 TO 11 FT SW OF A LINE FROM 10S160E TO 19S174E
TO 25S171W.

.RIDGE FROM 25S172W TO 21S174E.
.24 HOUR FORECAST RIDGE FROM 25S160W TO 20S173W.
.48 HOUR FORECAST RIDGE FROM 25S152W TO 23S161W.

.OTHERWISE WINDS INCREASING TO 25 KT OR GREATER.
.WINDS 25 TO 30 KT FROM 10S TO 23S W OF 170E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ISOLATED MODERATE TO STRONG TSTMS N OF 12S W OF 179E.

$$
.FORECASTER A BEDAL. HONOLULU HI.



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