High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 181700
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC THU DEC 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 18 2014.
24 HOUR FORECAST VALID 1200 UTC DEC 19 2014.
48 HOUR FORECAST VALID 1200 UTC DEC 20 2014.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 13S161W 1007 MB NEARLY STATIONARY. TROUGH FROM 09S163W THROUGH
LOW TO 17S157W TO 19S150W...CONTINUING AS A FRONT TO 20S147W TO
25S143W. FRONT AND TROUGH NEARLY STATIONARY. WINDS 20 TO 25 KT OVER
FORECAST WATERS S OF 20S BETWEEN 154W AND 166W...AND WITHIN 150NM E
OF FRONT S OF 21S. SCATTERED MODERATE TO LOCALLY STRONG TSTMS FROM
06S TO 13S BETWEEN 148W AND 159W. ISOLATED MODERATE TSTMS WITHIN 390
NM E AND NE OF FRONT...AND WITHIN 120 NM OF LOW AND TROUGH.
.24 HOUR FORECAST LOW 13S162W 1007 MB. TROUGH FROM 13S173W THROUGH
LOW TO 18S157W TO 18S152W...CONTINUING AS A FRONT TO 21S145W TO
25S140W. E TO SE WINDS 20 TO 25 KT OVER FORECAST WATERS S OF 19S
BETWEEN 156W AND 162W...AND S OF 17S BETWEEN 162W AND 178W.
.48 HOUR FORECAST LOW 15S162W 1006 MB. TROUGH FROM 15S179W TO
15S167W THROUGH LOW TO 18S152W...CONTINUING AS A FRONT TO 25S138W.
WINDS 20 TO 25 KT OVER FORECAST WATERS S OF LOW...TROUGH AND FRONT W
OF 158W...AND ELSEWHERE WITHIN 180 NM OF LOW.

.LOW 08S173E 1008 MB MOVING SW SLOWLY. TROUGH FROM 05S169W THROUGH
LOW TO 15S177E TO 23S178E MOVING W SLOWLY. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF LOW AND TROUGH.
.24 HOUR FORECAST LOW 09S171E 1008 MB. TROUGH FROM 07S167E THROUGH
LOW TO 18S176E.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 07S164E TO 12S173E TO
TO 15S180E.

.TROUGH FROM 25S169E TO 09S160E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 180 NM E OF TROUGH S OF 20S...AND FROM 06S TO 11S W OF
165E.
.24 HOUR FORECAST TROUGH FROM 25S165E TO 20S160E.
.48 HOUR FORECAST TROUGH FROM 25S166E TO 19S160E.

.RIDGE FROM 25S169W TO 11S180E TO 03S172E NEARLY STATIONARY.

.RIDGE FROM 25S125W TO 154S140W TO 03S161W NEARLY STATIONARY.

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

.SEAS 8 TO 10 FT E OF 139W...AND S OF 19S BETWEEN 139W AND 168W.
.24 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE FROM 25S146W TO
19S154W TO 14S167W TO 25S177W. SEAS 8 TO 9 FT E OF 137W.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF A LINE FROM 25S138W TO
12S158W TO 15S174W TO 20S178E.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REST OF FORECAST AREA.

$$
.FORECASTER HOUSTON. HONOLULU HI.






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