High Seas Forecast
Issued by NWS

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980
FZPS40 PHFO 300335
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC THU MAR 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAR 30 2017.
24 HOUR FORECAST VALID 0000 UTC MAR 31 2017.
48 HOUR FORECAST VALID 0000 UTC APR 01 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT JUST S OF AREA NEAR 25S150W MOVING N SLOWLY. TROUGH
FROM 24S150W TO 20S157W TO 16S160W TO 10S162W NEARLY STATIONARY.
E TO SE WINDS 20 TO 25 KT S OF A LINE FROM 25S153W TO 20S164W TO
25S169W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 420 NM E OF
TROUGH S OF 19S...FROM 11S TO 18S BETWEEN 145W AND 163W...FROM
06S TO 10S BETWEEN 152W AND 160W...AND S OF 22S BETWEEN 130W
AND 136W.
.24 HOUR FORECAST FRONT FROM 25S127W TO 23S150W TO 20S155W THENCE
TROUGH TO 16S160W TO 14S170W TO 10S177W. E TO SE WINDS 20 TO 30
KT S OF 22S BETWEEN 139W AND 169W.
.48 HOUR FORECAST FRONT FROM 25S122W TO 23S143W THENCE TROUGH TO
NEW LOW 17S157W 1008 MB TO 16S164W TO 12S177W. E TO SE WINDS 20
TO 30 KT S OF 22S BETWEEN 141W AND 162W.

.TROUGH FROM 25S174E TO 15S165E MOVING SW SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 240 NM E OF TROUGH S OF 21S.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 10S160E TO 08S170E TO 07S176E TO 09S172W NEARLY
STATIONARY. SCATTERED MODERATE TO STRONG TSTMS FROM 04S TO
10S BETWEEN 170W AND 165E.
.24 HOUR FORECAST TROUGH FROM 09S160E TO 11S180E TO 10S177W.
.48 HOUR FORECAST TROUGH FROM 09S160E TO 10S175E TO 12S177W.

.TROUGH FROM 08S129W TO 07S139W TO 11S153W. SCATTERED MODERATE
TSTMS FROM 06S TO 11S BETWEEN 121W AND 127W. ALSO ISOLATED
MODERATE TSTMS FROM 06S TO 10S BETWEEN 133W AND 140W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 25S123W TO 24S130W MOVING E 15 KT.

.24 HOUR FORECAST LOW PASSING SW OF AREA. N WINDS 20 TO
25 KT SW OF A LINE FROM 23S160E TO 25S161E.
.48 HOUR FORECAST ASSOCIATED WINDS DIMINISHED TO 20 KT OR
LESS.

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

.SEAS 8 TO 12 FT S OF 18S BETWEEN 154W AND 168W. SEAS 8 TO 9 FT
SE OF A LINE FROM 08S120W TO 25S140W.
.24 HOUR FORECAST SEAS 8 TO 13 FT S OF A LINE FROM 25S125W TO
21S150W TO 18S165W TO 18S172W TO 25S173W.
.48 HOUR FORECAST SEAS 8 TO 13 FT S OF 20S E OF 176W.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ISOLATED MODERATE TSTMS FROM 12S TO 18S BETWEEN 174W AND 177E.

$$

.FORECASTERS BIRCHARD/WOODRUM. HONOLULU HI.



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