High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 201702
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SAT DEC 20 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 20 2014.
24 HOUR FORECAST VALID 1200 UTC DEC 21 2014.
48 HOUR FORECAST VALID 1200 UTC DEC 22 2014.

.WARNINGS.

...GALE WARNING...
.LOW 15S162W 1004 MB MOVING SE 10 KT. TROUGHS FROM LOW TO 17S155W TO
17S147W AND FROM LOW TO WEAK SECOND LOW 13S170W 1005 MB TO 12S174W.
WINDS 20 TO 30 KT WITHIN 360 NM NE SEMICIRCLE OF LOW. E TO SE WINDS
20 TO 25 KT ELSEWHERE S OF 15S BETWEEN 153W AND 175W. NUMEROUS
STRONG TSTMS WITHIN 240 NM N OF TROUGH AND LOW E OF 165W...WITHIN
90 NM S OF TROUGH E OF 162W...AND FROM 06S TO 17S BETWEEN 165W AND
173W.
.24 HOUR FORECAST LOW 17S158W 1001 MB. SECOND LOW DISSIPATED.
TROUGHS FROM LOW TO 20S151W TO 21S146W...AND FROM LOW TO 14S166W TO
12S179W TO 10S175E TO 02S167E. WINDS 20 TO 30 KT WITHIN 210 NM N
SEMICIRCLE OF LOW. WINDS 20 TO 25 KT ELSEWHERE S OF A LINE FROM
21S146W TO LOW TO 15S168W TO 17S177W...AND ELSEWHERE WITHIN 90 NM OF
A LINE FROM 10S171W TO 13S161W.
.48 HOUR FORECAST LOW 19S152W 995 MB. TROUGHS FROM LOW TO 22S144W TO
TO 25S138W...AND FROM LOW TO 15S161W TO 13S176W TO 11S172E TO
07S164E. WINDS 30 TO 40 KT WITHIN 240 NM NE SEMICIRCLE OF LOW...AND
WITHIN 90 NM SW SEMICIRCLE. WINDS 20 TO 30 KT ELSEWHERE S OF A LINE
FROM 23S137W TO 20S147W TO 13S151W TO 10S163W TO 17S170W TO 20S180E
TO 22S177E.

.SYNOPSIS AND FORECAST.

.LOW 10S173E 1006 MB MOVING E SLOWLY. TROUGHS FROM LOW TO 11S178E
AND FROM LOW TO 07S160E. SCATTERED STRONG TSTMS FROM 04S TO 13S
BETWEEN 174W AND 173E...AND FROM 07S TO 11S W OF 163E.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH DESCRIBED IN PARAGRAPH
ABOVE.

.STATIONARY FRONT FROM 25S135W TO 20S141W TO 18S145W. WINDS 20 TO
25 KT S OF 23S BETWEEN 132W AND 136W.
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 25S135W TO
18S142W. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT DISSIPATED. REMNANT TROUGH DESCRIBED IN
FIRST PARAGRAPH.

.TROUGH FROM 25S166E TO 20S166E NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH FROM 25S166E TO 21S164E.
.48 HOUR FORECAST TROUGH FROM 25S166E TO 22S165E.

.RIDGE FROM 25S120W TO 13S140W TO 07S159W TO 04S170W TO 01S171E
NEARLY STATIONARY.

.REMAINDER OF AREA WINDS 20 KT OR LESS.

.SEAS 8 TO 11 FT S OF A LINE FROM 25S150W TO 15S155W TO 10S161W TO
14S170W TO 25S180W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST SEAS 12 TO 16 FT FROM 15S TO 23S BETWEEN 151W AND
157W. SEAS 8 TO 12 FT ELSEWHERE S OF A LINE FROM 25S140W TO 14S150W
TO 10S161W TO 10S169W TO 25S179W.

.REMAINDER OF AREA SEAS 8 FT OR LESS.

.ISOLATED MODERATE TSTMS FROM 03S TO 07S BETWEEN 158W AND 162W...
AND WITHIN 30 NM OF POINT 18S169E.

$$

.FORECASTER BIRCHARD. HONOLULU HI.





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