High Seas Forecast
Issued by NWS

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FZPS40 PHFO 271115
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC THU APR 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 27 2017.
24 HOUR FORECAST VALID 0600 UTC APR 28 2017.
48 HOUR FORECAST VALID 0600 UTC APR 29 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 07S160E 1008 MB MOVING SE 10 KT. TROUGH FROM LOW TO 09S174E
MOVING S SLOWLY. SCATTERED MODERATE TO STRONG TSTMS FROM 09S TO 13S
W OF 164E. ISOLATED MODERATE TSTMS ELSEWHERE N OF 16S W OF 174E.
.24 HOUR FORECAST LOW 12S163E 1007 MB. TROUGH FROM 11S160E TO LOW
TO 10S170E TO 12S174E.
.48 HOUR FORECAST LOW 11S166E 1007 MB. TROUGH FROM 09S160E TO LOW
TO 11S172E.

.LOW 11S177W 1008 MB MOVING W 10 KT. TROUGH FROM 09S174E TO LOW TO
18S172W TO 23S171W TO 25S170W MOVING S SLOWLY W OF LOW AND MOVING E
SLOWLY ELSEWHERE. ISOLATED MODERATE TO STRONG TSTMS N OF 13S BETWEEN
177E AND 163W...FROM 13S TO 18S BETWEEN 162W AND 177W...FROM 18S TO
21S BETWEEN 161W AND 172W...AND S OF 21S BETWEEN 160W AND 170W.
.24 HOUR FORECAST LOW 12S179E 1008 MB. TROUGH FROM 12S174E TO LOW TO
18S170W TO 22S167W.
.48 HOUR FORECAST LOW 12S176E 1007 MB. TROUGH FROM 11S172E TO LOW TO
14S169W.

.TROUGH FROM 03S163W TO 05S160W TO 08S159W MOVING WSW 10 KT.
ISOLATED MODERATE TSTMS FROM 02S TO 10S BETWEEN 156W AND 163W.
.24 HOUR FORECAST TROUGH FROM 04S168W TO 08S162W TO 08S153W.
.48 HOUR FORECAST TROUGH FROM 04S169W TO 07S166W TO 10S165W.

.TROUGH FROM 04S153W TO 06S150W TO 08S148W MOVING W SLOWLY. ISOLATED
MODERATE TO STRONG TSTMS FROM 01S TO 10S BETWEEN 124W AND 156W.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED JUST ABOVE.

.TROUGH FROM 25S122W TO 19S125W NEARLY STATIONARY. ISOLATED MODERATE
TSTMS WITHIN 60 NM OF A LINE FROM 21S127W TO 25S120W.
.24 HOUR FORECAST NEW FRONT FROM 25S123W TO 23S124W MOVING E 20 KT.
TROUGH FROM 22S123W TO 17S124W.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT. FRONT E OF FORECAST AREA.

.24 HOUR FORECAST NEW FRONT FROM 25S165W TO 23S167W MOVING E 10 KT.
.48 HOUR FORECAST FRONT FROM 25S158W TO 22S162W.

.RIDGE FROM 11S162W TO 05S172W TO 02S165E NEARLY STATIONARY.

.RIDGE FROM 25S168E TO 21S160E MOVING E 10 KT.

.WINDS 20 KT OR LESS OVER ENTIRE AREA.

.SEAS 8 TO 10 FT S OF 05S E OF 132W...S OF 22S BETWEEN 132W AND
150W...AND S OF 22S BETWEEN 156W AND 174W.
.24 HOUR FORECAST SEAS 8 TO 10 FT S OF A LINE FROM 02S120W TO
06S125W TO 17S128W TO 22S134W TO 22S151W TO 16S164W TO 20S171W.
.48 HOUR FORECAST SEAS 8 TO 12 FT S OF A LINE FROM 11S120W TO
11S125W TO 19S137W TO 19S145W.

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

.ISOLATED MODERATE TSTMS FROM 10S TO 19S BETWEEN 130W AND 148W.

$$

.HONOLULU HI.



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