High Seas Forecast
Issued by NWS

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FZPS40 PHFO 301140
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC TUE MAY 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAY 30 2017.
24 HOUR FORECAST VALID 0600 UTC MAY 31 2017.
48 HOUR FORECAST VALID 0600 UTC JUN 01 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 25S169W TO 24S173W MOVING E 15 KT THENCE A
STATIONARY FRONT TO 22S178E.
.24 HOUR FORECAST FRONT FROM 25S161W TO 23S168W TO 22S177W.
.48 HOUR FORECAST DISSIPATING FRONT FROM 25S154W TO 23S163W TO
22S171W.

.COLD FRONT APPROACHING FORECAST AREA FROM SW.
.48 HOUR FORECAST FRONT FROM 25S167E TO 21S165E TO 17S160E.
WINDS SW TO S 20 TO 25 KT AND SEAS BUILDING TO 8 TO 9 FT
OVER FORECAST WATERS S OF FRONT.

.STATIONARY FRONT FROM 25S120W TO 25S128W 21S139W TO 21S149W. WINDS
SE TO E 20 TO 30 KT OVER FORECAST WATERS S OF FRONT.
ISOLATED MODERATE TSTMS WITHIN 150 NM EITHER SIDE OF FRONTAL
BOUNDARY E OF 135W.
.24 HOUR FORECAST DISSIPATING FRONT FROM 25S128W TO 21S139W.
DEVELOPING TROUGH FROM 20S127W TO 25S120W. WIND SE 20 TO 25 KT
OVER FORECAST WATERS S OF FRONT.
.48 HOUR FORECAST TROUGH FROM 19S123W TO 25S122W. WIND SE 20 TO
30 KT OVER FORECAST WATERS SW OF TROUGH AXIS.

.TROUGH FROM 05S132W TO 10S129W TO 14S127W MOVING NW 10 KT. NUMEROUS
STRONG TSMTS WITHIN 240 NM EITHER SIDE OF TROUGH AXIS. SCATTERED
MODERATE TO STRONG TSTMS ELSEWHERE WITHIN A POLYGON BOUND BY 01S179E
05S157W 13S164W 11S179W 07S174W 01S179E.
.24 HOUR FORECAST TROUGH FROM 05S137W TO 11S133W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 06S157W TO 12S149W MOVING NW 10 KT. ISOLATED MODERATE
TO STRONG TSTMS WITHIN 180 NM OF TROUGH AXIS.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 05S179W TO 08S174W TO 09S165W MOVING W 20 KT.
.24 HOUR FORECAST TROUGH FROM 05S169E TO 09S176E TO 12S178W.
.48 HOUR FORECAST TROUGH FROM 05S160E TO 11S166E TO 16S169E.

.OTHERWISE WINDS E TO SE 20 TO 25 KT WITHIN 240 NM EITHER SIDE OF
A LINE FROM 11S160E TO 11S170W 20S145W.
.24 HOUR FORECAST WINDS E TO SE 20 TO 25 KT WITHIN 180 NM EITHER
SIDE OF A LINE FROM 11S160E TO 15S155W.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS...EXCEPT
WHERE GREATER AS DESCRIBED ABOVE.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 14 FT S OF A LINE FROM 19S143W TO 25S126W. SEAS 8 TO
12 FT WITHIN A POLYGON BOUND BY 05S170W 10S150W 17S140W 08S130W
08S120W 25S120W 25S155W 10S178W 05S170W.
.24 HOUR FORECAST SEAS 8 TO 12 FT WITHIN A POLYGON BOUND BY 07S120W
25S120W 25S152W 20S150W 18S135W 07S120W. ALSO SEAS 8 TO 9 FT FROM
10S TO 16S BETWEEN 170W AND 155W.
.48 HOUR FORECAST SEAS 8 TO 12 FT S OF 18S E OF 140W.

.OTHERWISE ISOLATED MODERATE TO STRONG TSTMS FROM 05S TO 12S
W OF 171E...AND ALSO FROM 02S TO 05S BETWEEN 137W AND 129W.

$$

.FORECASTER BEDAL. HONOLULU HI.



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