High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 200342
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC WED SEP 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 20 2017.
24 HOUR FORECAST VALID 0000 UTC SEP 21 2017.
48 HOUR FORECAST VALID 0000 UTC SEP 22 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 16S167W 10S176E 05S160E NEARLY STATIONARY. SCATTERED
MODERATE TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 14S170W 10S173E 06S160E.
.48 HOUR FORECAST TROUGH 16S168W 12S175E 08S160E.

.FRONT 25S164W 20S172W MOVING E 20 KT.
.24 HOUR FORECAST FRONT 25S156W 18S163W 15S170W.
.48 HOUR FORECAST FRONT 25S147W 19S156W 16S168W.

.FRONT 25S127W 23S140W 19S150W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT 25S125W 23S134W 21S148W.
.48 HOUR FORECAST FRONT 25S121W 21S133W 25S139W.

.RIDGE 25S170E 19S177W MOVING SE SLOWLY.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 8 TO 11 FT S OF LINE 25S166E 15S175E 25S174W.
.24 HOUR FORECAST SEAS 8 TO 10 FT E OF 173E AND S OF LINE 04S173E
25S164W.
.48 HOUR FORECAST SEAS 8 TO 9 FT S OF LINE 25S167W 21S163W 25S155W.

.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.

$$

.FORECASTER POWELL. HONOLULU HI.


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