High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 220328
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC TUE AUG 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 22 2017.
24 HOUR FORECAST VALID 0000 UTC AUG 23 2017.
48 HOUR FORECAST VALID 0000 UTC AUG 24 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S168W TO 20S174W THENCE TROUGH TO 11S177E. FRONT
MOVING E 15 KT...TROUGH NEARLY STATIONARY. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST FRONT FROM 25S161W TO 22S168W THENCE TROUGH TO
13S179W.
.48 HOUR FORECAST FRONT FROM 25S155W TO 23S160W THENCE TROUGH TO
18S173W.

.TROUGH FROM 25S133W TO 20S133W TO 07S145W TO 03S155W NEARLY
STATIONARY. ISOLATED MODERATE TSTMS WITHIN 240 NM E OF TROUGH S OF
13S.
.24 HOUR FORECAST TROUGH FROM 25S133W TO 22S132W TO 08S137W TO
05S142W. WINDS 20 TO 30 KT S OF 21S E OF 126W.
.48 HOUR FORECAST TROUGH FROM 25S131W TO 20S129W TO 08S139W.
WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 12S178E TO 04S160E NEARLY STATIONARY. SCATTERED
MODERATE TSTMS WITHIN 240 NM S OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 11S176E TO 10S166E TO 05S160E.
.48 HOUR FORECAST TROUGH FROM 09S176E TO 04S160E.

.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 12S TO 17S W OF
170E.
.48 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 13S TO 17S W OF
170E.

.RIDGE FROM 25S157W TO 19S169W MOVING E 10 KT AND ERODING FROM
THE W.

.RIDGE FROM 25S168E TO 23S174E TO 22S178W MOVING SE 10 KT.

.OTHERWISE WINDS 20 KT OR LESS OVER REMAINDER OF AREA.

.SEAS 8 TO 11 FT S OF A LINE FROM 18S120W TO 18S129W TO
25S134W...AND S OF A LINE FROM 22S171W TO 14S176E TO 12S160E.
.24 HOUR FORECAST SEAS 8 TO 12 FT S OF A LINE FROM 11S120W TO
11S126W TO 25S134W. SEAS 8 TO 9 FT FROM 13S TO 20S BETWEEN 173E
AND 178E.
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE FROM 15S120W TO
25S131W.

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

.ISOLATED MODERATE TSTMS WITHIN 90 NM N OF A LINE FROM 03S162W TO
01S166W.

$$

.FORECASTER BRAVENDER. HONOLULU HI.


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