High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 230345 CCA
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC TUE MAY 23 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 2017.
24 HOUR FORECAST VALID 0000 UTC MAY 24 2017.
48 HOUR FORECAST VALID 0000 UTC MAY 25 2017.

.WARNINGS.

...GALE WARNING...
.LOW 18S179W 1005 MB MOVING E 15 KT. TROUGH FROM LOW TO 15S173E
10S167E 04S163E. WINDS 30 TO 35 KT BOUNDED BY 17S179W 22S168W
25S178E 20S175E 17S179W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE
25S153W 16S170W 16W179W 20S172E 25S174E. ISOLATED MODERATE TSTMS
FROM 16S TO 20S BETWEEN 172W AND 178W.
.24 HOUR FORECAST LOW 20S173W 1004 MB. NEW LOW 23S166W 1004 MB.
TROUGH FROM FIRST LOW THROUGH SECOND LOW TO 14S178W 10S168E. WINDS
30 TO 35 KT S OF LINE 25S158W 21S169W 25S172W...WINDS 20 TO 30 KT
ELSEWHERE S OF LINE 25S155W 16S172W 25S176W.
.48 HOUR FORECAST FIRST LOW DISSIPATED. SECOND LOW MOVED S OF AREA.
FRONT 25S161W 20S165W 13S173W. WINDS 20 TO 30 KT S OF LINE 25S150W
20S160W 25S172W.

.SYNOPSIS AND FORECAST.

.LOW 21S132W 1012 MB NEARLY STATIONARY AND DISSIPATING. TROUGH
25S124W THROUGH LOW TO 15S136W. SE WINDS 20 TO 25 KT S OF LINE
25S129W 22S133W 25S135W.
.24 HOUR FORECAST LOW 21S135W 1013 MB. TROUGH 25S132W TO LOW.
.48 HOUR FORECAST LOW AND TROUGH DISSIPATED.

.FRONT 25S153W 20S160W MOVING SE 15 KT.
.24 HOUR FORECAST FRONT MOVED S OF AREA. TROUGH 25S144W 20S147W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 09S135W 04S137W MOVING SW SLOWLY.
.24 HOUR FORECAST TROUGH 10S138W 06S139W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 12S158W 05S161W MOVING SW 15 KT. ISOLATED MODERATE TSTMS
FROM 10S TO 13S BETWEEN 153W AND 158W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.SEAS 12 TO 17 FT S OF LINE 25S154W 17S170W 20S170E 25S170E...
SEAS 8 TO 12 FT ELSEWHERE S OF LINE 05S120W 20S125W 22S155W
14S170W 15S175E 25S160E.
.24 HOUR FORECAST SEAS 16 TO 20 FT FROM 20S TO 23S BETWEEN 163W
AND 175W...SEAS 12 TO 16 FT ELSEWHERE S OF LINE 25S145W 20S155W
16S178W 25S175E...SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S130W
12S162W 18S178E 15S175E 25S165E. SEAS 8 TO 9 FT E OF LINE 25S120W
15S124W 10S120W.
.48 HOUR FORECAST SEAS 12 TO 15 FT S OF LINE 25S155W 20S170W
25S175W...SEAS 8 TO 12 FT ELSEWHERE S OF 23S BETWEEN 130W AND
170E. SEAS 8 TO 9 FT E OF LINE 25S120W 13S130W 10S120W.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.HONOLULU FORECASTER.


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