High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 211115
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC SUN DEC 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 21 2014.
24 HOUR FORECAST VALID 0600 UTC DEC 22 2014.
48 HOUR FORECAST VALID 0600 UTC DEC 23 2014.

.WARNINGS.

...GALE WARNING...
.LOW 17S159W 1004 MB MOVING SE 12 KT. TROUGHS FROM LOW TO 15S164W
AND FROM LOW TO 18S153W. WINDS 20 TO 30 KT SEAS 8 TO 12 FT WITHIN
120 NM NE SEMICIRCLE OF LOW.
.24 HOUR FORECAST LOW 18S153W 1000 MB. TROUGHS FROM LOW TO 17S158W
AND FROM LOW TO 25S138W.
WINDS 20 TO 35 KT SEAS 8 TO 15 FT WITHIN 200 NM NE SEMICIRCLE OF
LOW...AND WITHIN 120 NM ELSEWHERE OF LOW.
.48 HOUR FORECAST LOW 20S148W 998 MB. TROUGHS FROM LOW TO 16S154W
AND FROM LOW TO 25S138W.
WINDS 25 TO 40 KT SEAS 12 TO 18 FT WITHIN 200 NM NE SEMICIRCLE OF
LOW AND WITHIN 120 NM ELSEWHERE OF LOW.
WINDS 20 TO 30 KT SEAS 8 TO 12 FT ELSEWHERE WITHIN 300 NM NE
SEMICIRCLE OF LOW AND WITHIN 200 NM ELSEWHERE OF LOW.

...GALE WARNING...
.LOW 13S169W 1004 MB MOVING SE 12 KT. TROUGHS FROM LOW TO 15S164W
AND FROM LOW TO 12S180W. WINDS 20 TO 25 KT SEAS 8 TO 10 FT WITHIN
200 NM NE SEMICIRCLE OF LOW.
.24 HOUR FORECAST LOW 15S164W 1001 MB. TROUGHS FROM LOW TO
12S180W...AND FROM LOW TO 15S158W.
WINDS 20 TO 30 KT SEAS 8 TO 12 FT WITHIN 220 NM OF LOW.
.48 HOUR FORECAST LOW 14S160W 998 MB. TROUGHS FROM LOW TO 12S165W
15S180W AND FROM LOW TO 16S154W.
WINDS 25 TO 40 KT SEAS 12 TO 18 FT WITHIN 160 NM NE SEMICIRCLE OF
LOW AND WITHIN 100 NM ELSEWHERE OF LOW.
WINDS 20 TO 30 KT SEAS 8 TO 12 FT ELSEWHERE WITHIN 260 NM NE
SEMICIRCLE OF LOW AND WITHIN 180 NM ELSEWHERE OF LOW.

.SYNOPSIS AND FORECAST.

.CONTINUATION OF TROUGH FROM FIRST GALE LOW...18S153W TO 18S144W TO
20S138W TO 25S134W...MOVING SW TO 15 KT. SCATTERED MODERATE TSTMS
WITHIN 150 NM S OF TROUGH.
.24 HOUR FORECAST...REFER TO FIRST GALE LOW.

.TROUGH FROM 25S168E TO 17S167E TO 13S170E MOVING W SLOWLY.
ISOLATED TSTMS WITHIN 100 NM EITHER SIDE OF TROUGH.
.24 HOUR FORECAST TROUGH 25S166E TO 20S164E TO 13S165E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE 25S130W TO 10S155W TO 00S175E NEARLY STATIONARY.

.SE WINDS 20 TO 25 KT SEAS 8 TO 10 FT ELSEWHERE S OF DEVELOPING GALE
LOWS AND ASSOCIATED TROUGHS.
.24 HOUR FORECAST SE WINDS 20 TO 25 KT SEAS 8 TO 10 FT ELSEWHERE S
OF GALE LOWS AND ASSOCIATED TROUGH.
.48 HOUR FORECAST NO SIGNIFICANT CHANGE.

.OTHERWISE WINDS 20 KT OR LESS...SEAS 8 FT OR LESS.

.WIDELY SCATTERED MODERATE TSTMS WITHIN 320 NM N OF TROUGHS AND
LOWS...AND WITHIN 200 NM S OF TROUGHS AND LOWS. SCATTERED STRONG
TSTMS WITHIN 100 NM OF A POINT 02S169E. WIDELY SCATTERED TSTMS
ELSEWHERE N OF 10S W OF 180W.

$$
.FORECASTER LAU. HONOLULU HI.










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