High Seas Forecast
Issued by NWS

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FZPS40 PHFO 281534
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SUN MAY 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 28 2017.
24 HOUR FORECAST VALID 1200 UTC MAY 29 2017.
48 HOUR FORECAST VALID 1200 UTC MAY 30 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WEAKENING FRONT FROM 25S127W TO 21S135W MOVING E 20 KT ALONG 25S
AND NEARLY STATIONARY ELSEWHERE. SE TO E WINDS 20 TO 30 KT S OF
FRONT...S OF A LINE FROM 21S135W TO 08S152W TO 08S160W...AND FROM
08S TO 20S BETWEEN 160W AND 172W.
.24 HOUR FORECAST DISSIPATING FRONT FROM 24S120W TO 22S135W. SE TO E
WINDS 20 TO 30 KT S OF FRONT...S OF A LINE FROM 22S135W TO
11S156W...AND FROM 08S TO 17S BETWEEN 156W AND 176W.
.48 HOUR FORECAST FRONT BECOMES A TROUGH FROM 25S122W TO 21S125W. SE
TO E WINDS 20 TO 25 KT S OF A LINE FROM 25S125W TO 18S147W...AND
FROM 12S TO 18S BETWEEN 150W AND 160W.

.COLD FRONT FROM 25S179W TO 21S175E MOVING E 15 KT.
.24 HOUR FORECAST FRONT FROM 25S171W TO 23S175W THEN A TROUGH TO
18S175W.
.48 HOUR FORECAST WEAKENING FRONT FROM 25S167W TO 23S170W.

.TROUGH FROM 09S141W TO 12S140W TO 15S138W MOVING W 15 KT. ISOLATED
MODERATE TSTMS FROM 09S TO 14S BETWEEN 135W AND 143W.
.24 HOUR FORECAST TROUGH FROM 08S142W TO 11S147W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 16S176W TO 22S174W NEARLY STATIONARY. ISOLATED MODERATE
TSTMS WITHIN 60 NM OF 18S169W.
.24 HOUR FORECAST TROUGH JOINED WITH SECOND FRONT DESCRIBED ABOVE.

.RIDGE FROM 25S121W TO 24S125W MOVING E 10 KT.

.SE TO E WINDS 20 TO 25 KT W OF 168E BETWEEN 10S AND 19S.
.24 HOUR FORECAST SE TO E WINDS 20 TO 25 KT W OF 177E BETWEEN 07S TO
14S.
.48 HOUR FORECAST SE TO E WINDS 20 TO 25 KT W OF 170W BETWEEN 08S TO
16S.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 14 FT S OF A LINE FROM 25S120W TO 17S125W TO 16S148W.
SEAS 8 TO 12 FT S OF 08S BETWEEN 148W AND 164W. SEAS 8 TO 10 FT FROM
08S TO 21S BETWEEN 164W AND 168W. SEAS 8 TO 9 FT E OF A LINE FROM
05S120W TO 07S130W TO 16S136W.
.24 HOUR FORECAST SEAS 8 TO 14 FT S OF A LINE FROM 12S120W TO
08S127W TO 17S142W TO 08S155W TO 07S160W...AND IN AREA BOUNDED BY
07S160W 24S160W 10S178W 06S175W 07S160W.
.48 HOUR FORECAST SEAS 8 TO 12 FT S OF A LINE FROM 08S120W TO
07S129W TO 19S137W TO 17S146W TO 18S157W. SEAS 8 TO 10 FT FROM 08S
TO 17S BETWEEN 150W AND 178W. SEAS 8 TO 9 FT FROM 08S TO 12S BETWEEN
161E AND 170E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ISOLATED MODERATE TO STRONG TSTMS N OF 12S W OF 180E...FROM 04S TO
10S BETWEEN 170W AND 180W...FROM 01S TO 12S BETWEEN 160W AND
170W...FROM 05S TO 10S BETWEEN 149W AND 160W...AND WITHIN 60 NM OF
02S155W...03S151W AND 06S143W.

$$

.HONOLULU HI.



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