High Seas Forecast
Issued by NWS

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FZPS40 PHFO 231532
HSFSP

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.RELOCATED FRONT 25S153W TO 20S158W TO 17S170W TO 14S170E.
FRONT MOVING NE TO 15 KT. SECONDARY FRONT FROM 25S157W TO
22S164W TO 20S170W MOVING N AND NE TO 15 KT. SE TO E WINDS 20 TO
25 KT S OF FRONT W OF 170W. SCATTERED MODERATE TO STRONG TSTMS
WITHIN 330 NM N OF FRONT W OF 170W. WIDELY SCATTERED MODERATE
TSTMS WITHIN 500 NM E OF FRONT E OF 160W.
.24 HOUR FORECAST FRONT 25S146W TO 20S150W TO 16S158W TO 17S168W
TO 15S175E TO 13S170E. DISSIPATING SECONDARY FRONT FROM 25S150W TO
22S156W TO 20S170W. SE TO E WINDS 20 TO 25 KT S OF FRONT W OF
170W.
.48 HOUR FORECAST SECONDARY FRONT DISSIPATED. FRONT FROM 25S143W
TO 16S155W TO 18S163W TO 13S180W TO 14S170E. SE TO E WINDS 20 TO
25 KT S OF FRONT W OF 160W.

.TROUGH VICINITY OF 160E S OF 15S NEARLY STATIONARY. E WINDS 20
TO 25 KT S OF 18S W OF 165E. ISOLATED TSTMS S OF 17S W OF 170E.
.24 HOUR FORECAST TROUGH 25S162E TO 20S160E. E WINDS 20 TO 30 KT
S OF 17S W OF 170E.
.48 HOUR FORECAST TROUGH ALONG 160E S OF 20S. E WINDS 20 TO 25 KT
S OF 18S W OF 170E.

.WEAK DISSIPATING TROUGH 25S131W TO 23S132W TO 21S136W NEARLY
STATIONARY. ISOLATED TSTMS WITHIN 200 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 12S170W TO 15S165W TO 17S158W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 12S160E TO 12S162E TO 13S165E NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE 25S138W TO 16S150W TO 13S163W NEARLY STATIONARY...
ERODING FROM W.

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

.SEAS 8 TO 9 FT S OF 16S BETWEEN 175E AND 168E.
.24 HOUR FORECAST SEAS 8 TO 10 FT S OF A LINE 19S165W TO
17S180W TO 19S170E TO 23S160E.
.48 HOUR FORECAST SEAS 8 TO 9 FT S OF A LINE 20S165W TO
15S174W TO 15S170E.

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

$$

.FORECASTER LAU. HONOLULU HI.



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