High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 201525
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI OCT 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 20 2017.
24 HOUR FORECAST VALID 1200 UTC OCT 21 2017.
48 HOUR FORECAST VALID 1200 UTC OCT 22 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S162W TO 18S170W TO 13S180E TO LOW 12S173E 1009 MB
THENCE TROUGH TO 07S160E. FRONT AND TROUGH NEARLY STATIONARY. LOW
MOVING E SLOWLY. ISOLATED MODERATE TSTMS WITHIN 210 NM OF FRONT E OF
173E...AND WITHIN 240 NM N AND NE OF LOW AND TROUGH BETWEEN 168E AND
173E.
.24 HOUR FORECAST FRONT FROM 25S162W TO 19S170W TO 14S180E TO
12S172E THENCE TROUGH TO 07S164E. LOW DISSIPATED.
.48 HOUR FORECAST FRONT FROM 25S154W TO 18S170W TO 16S180E TO
13S173E THENCE TROUGH TO 10S162E.

.FRONT FROM 14S120W TO 11S134W TO 12S148W NEARLY STATIONARY. E TO SE
WINDS 20 TO 25 KT BETWEEN FRONT AND 23S W OF 130W. NE TO E WINDS 20
TO 25 KT S OF 16S BETWEEN 148W AND 155W.
.24 HOUR FORECAST WEAK FRONT FROM 15S120W TO 12S136W TO 10S152W.
WINDS EASED TO 20 KT OR LESS.
.48 HOUR FORECAST DISSIPATING FRONT FROM 17S120W TO 14S135W TO
10S153W.

.RIDGE FROM 25S150W TO 15S165W TO 05S174E NEARLY STATIONARY.

.RIDGE FROM 25S175E TO 23S169W NEARLY STATIONARY.

.SEAS 8 TO 12 FT S OF 12S E OF 150W. SEAS 8 TO 10 FT S OF 18S
BETWEEN 150W AND 158W...AND S OF 22S BETWEEN 158W AND 179E.
.24 HOUR FORECAST SEAS 8 TO 10 FT S OF 09S E OF 140W. SEAS 8 TO 9 FT
S OF 21S BETWEEN 154W AND 169W...AND FROM 18S TO 22S BETWEEN 140W
AND 146W.
.48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LESS OVER ENTIRE FORECAST
AREA.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS OVER REST OF FORECAST
AREA.

$$

.FORECASTER KINEL. HONOLULU HI.



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