High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 171525
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC TUE JAN 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 17 2017.
24 HOUR FORECAST VALID 1200 UTC JAN 18 2017.
48 HOUR FORECAST VALID 1200 UTC JAN 19 2017.

.WARNINGS.

...GALE WARNING...
.LOW 21S155W 1002 MB MOVING ENE SLOWLY. TROUGH FROM LOW TO 14S175W
TO 15S170E TO 13S160E NEARLY STATIONARY. WINDS 20 TO 30 KT WITHIN
105 NM OF LINE FROM 13S169W TO 16S155W TO 24S154W TO 25S158W.
ISOLATED TO LOCALLY SCATTERED MODERATE TO STRONG TSTMS WITHIN 360 NM
N AND NE OF LOW AND TROUGH E OF 177W. ISOLATED MODERATE TO STRONG
TSTMS BOUNDED BY 08S160E TO 11S174E TO 17S179E TO 17S169E TO 13S160E
TO 08S160E.
.24 HOUR FORECAST LOW 19S153W 997 MB. TROUGHS FROM LOW TO 18S159W TO
25S164W...AND FROM LOW TO 13S159W. WINDS 25 TO 40 KT WITHIN 150 NM
OF LINE FROM 10S165W TO 14S153W TO 21S153W. E WINDS 20 TO 25 KT S OF
23S BETWEEN 152W AND 158W.
.48 HOUR FORECAST LOW 24S150W 996 MB. SECOND LOW DEVELOPING NEAR
19S154W 1003 MB. TROUGH FROM 25S149W TO FIRST LOW TO SECOND LOW TO
19S160W TO 25S166W. WINDS 25 TO 40 KT WITHIN 210 NM OF LINE FROM
11S157W TO 22S148W TO 25S148W.

.SYNOPSIS AND FORECAST.

.LOW 24S171W 1005 MB NEARLY STATIONARY.
.24 HOUR FORECAST 25S171W 1004 MB.
.48 HOUR FORECAST 25S171W 1006 MB.

.LOW 21S128W 1009 MB. TROUGH FROM 22S120W TO LOW TO 16S136W TO
15S138W TO 18S150W. LOW AND TROUGH NEARLY STATIONARY. ISOLATED
MODERATE TSTMS FROM 11S TO 20S BETWEEN 134W AND 150W...AND WITHIN
210 NM N AND NE OF LOW AND TROUGH E OF 134W.
.24 HOUR FORECAST LOW 21S128W 1012 MB. TROUGH FROM 22S120W TO LOW.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 21S120W TO 22S132W.

.RIDGE FROM 15S120W TO 07S155W TO 06S180E TO 05S160E NEARLY
STATIONARY.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 8 TO 10 FT S OF LINE FROM 19S153W TO 25S162W.
.24 HOUR FORECAST SEAS 12 TO 16 FT FROM 17S TO 20S BETWEEN 152W AND
154W. SEAS 12 TO 14 FT FROM 11S TO 15S BETWEEN 156W AND 158W. SEAS 8
TO 12 FT ELSEWHERE S OF 10S BETWEEN 151W AND 159W. SEAS 8 TO 10 FT S
OF 21S BETWEEN 159W AND 163W...AND FROM 09S TO 13S BETWEEN 159W AND
165W.
.48 HOUR FORECAST SEAS 12 TO 21 FT S OF 19S BETWEEN 146W AND 152W.
SEAS 8 TO 12 FT ELSEWHERE S OF LINE FROM 09S160W TO 12S150W TO
21S144W.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

.ISOLATED MODERATE TSTMS S OF 23S BETWEEN 139W AND 160W.

$$

.FORECASTER KINEL. HONOLULU HI.



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