High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 231530
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC THU FEB 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FEB 23 2017.
24 HOUR FORECAST VALID 1200 UTC FEB 24 2017.
48 HOUR FORECAST VALID 1200 UTC FEB 25 2017.

.WARNINGS...

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 19S177W 1007 MB MOVING SE 20 KT. TROUGH FROM 15S175E TO LOW
TO 22S165W...NEARLY STATIONARY. NW WINDS 20 TO 30 KT SEAS 8 TO 11
FT WITHIN 240 NM N OF TROUGH AND LOW.
.24 HOUR FORECAST LOW 21S169W 1007 MB. TROUGH FROM 15S175E TO
18S175W TO LOW TO 23S167W. NW WINDS 20 TO 25 KT SEAS 8 TO 10 FT
WITHIN 200 NM N OF TROUGH AND LOW.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 14S175E 16S175W 21S168W
22S163W 25S159W. NW WINDS DIMINISHED TO 20 KT OR LESS. SEAS LOWERED
TO 8 FT OR LESS.

.LOW 13S161E 1007 MB MOVING E SLOWLY. TROUGH FROM 15S175E TO LOW
TO 13S160E...NEARLY STATIONARY.
.24 HOUR FORECAST LOW 15S164E 1006 MB. TROUGH FROM 14S175E TO LOW
TO 14S160E.
.48 HOUR FORECAST LOW 15S165E 1005 MB. TROUGH FROM 14S175E TO LOW
TO 15S160E.

.TROUGH 08S120W 09S124W 08S135W 05S150W MOVING S SLOWLY.
SCATTERED TSTMS WITHIN 220 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 06S120W 10S140W 06S154W.
.48 HOUR FORECAST TROUGH NO SIGNIFICANT CHANGE.

.TROUGH 10S160W 15S153W 20S147 NEARLY STATIONARY...DISSIPATING.
.24 HOUR FORECAST TROUGH NO SIGNIFICANT CHANGE.
.48 HOUR FORECAST TROUGH DISSIPATED.

.W TO NW WINDS 20 TO 25 KT S OF 20S BETWEEN 152W AND 165W.
.24 HOUR FORECAST W TO NW WINDS 20 TO 25 KT S OF 22S BETWEEN 143W
AND 155W.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

.HIGH 16S158W 1013 MB MOVING S SLOWLY. RIDGE FROM HIGH TO 08S180W
TO 05S160E...MOVING S SLOWLY.
.24 HOUR FORECAST HIGH 17S156W 1012 MB. RIDGE FROM HIGH TO 09S180W
TO 06S160E.
.48 HOUR FORECAST HIGH 19S158W 1012 MB. RIDGE FROM HIGH TO 09S180W
TO 06S160E.

.RIDGE 24S120W 23S130W 13S150W MOVING S SLOWLY.

.ELSEWHERE...SEAS 8 TO 14 FT S OF 17S BETWEEN 155W AND 167W.
.24 HOUR FORECAST SEAS 8 TO 11 FT S OF 21S BETWEEN 147W AND 159W.
.48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LESS.

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

.SCATTERED MODERATE TSTMS WITHIN 250 NM EITHER SIDE OF A LINE...
08S160E 11S178E 20S168W. WIDELY SCATTERED MODERATE TSTMS WITHIN
250 NM EITHER SIDE OF A LINE FROM 07S170W TO 12S163W TO 20S156W.


$$

.FORECASTER LAU. HONOLULU HI.


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