High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 230326
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SAT SEP 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 23 2017.
24 HOUR FORECAST VALID 0000 UTC SEP 24 2017.
48 HOUR FORECAST VALID 0000 UTC SEP 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S138W TO 19S150W TO 15S165W MOVING E SLOWLY S OF
18S AND NEARLY STATIONARY ELSEWHERE.
.24 HOUR FORECAST FRONT FROM 25S137W TO 18S150W TO 14S160W.
.48 HOUR FORECAST FRONT FROM 25S135W TO 18S150W TO 15S168W.

.FRONT FROM 25S176W TO 20S170E TO 18S160E MOVING E 10 KT S OF 20S
AND NEARLY STATIONARY ELSEWHERE.
.24 HOUR FORECAST FRONT FROM 25S170W TO 22S175E TO 22S165E.
.48 HOUR FORECAST FRONT FROM 25S162W TO 23S175W TO 22S175E.

.TROUGH FROM 06S160E TO 08S175E TO 10S168W NEARLY STATIONARY.
ISOLATED MODERATE TSMTS FROM 07S TO 13S W OF 175E AND ELSEWHERE
WITHIN 170 NM S AND 120 NM N OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 06S160E TO 10S170E TO 12S175E
DISSIPATING.
.48 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 22S171W 1017 MB MOVING E 20 KT. RIDGE FROM 21S152W TO HIGH
TO 21S178E MOVING SE SLOWLY AND ERODING FROM THE W.
.24 HOUR FORECAST HIGH 23S158W 1017 MB DISSIPATING.
.48 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 25S129W TO 20S140W MOVING NE SLOWLY.

.WINDS SE TO E WINDS 20 TO 25 KT FROM 10S TO 15S W OF 170E.
.24 HOUR FORECAST SE TO E WINDS 20 TO 25 KT FROM 11S TO 16S W OF
178E.
.48 HOUR FORECAST SE TO E WINDS 20 TO 25 KT WITHIN 120 NM OF LINE
FROM 11S172E TO 17S168W.

.SEAS 8 TO 9 FT S OF 23S BETWEEN 172E AND 180E.
.24 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.
.48 HOUR FORECAST SEAS 8 FT OR LESS.

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

$$

.FORECASTER BURKE. HONOLULU HI.


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