High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 242231
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC WED MAY 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAY 24 2017.
24 HOUR FORECAST VALID 1800 UTC MAY 25 2017.
48 HOUR FORECAST VALID 1800 UTC MAY 26 2017.

.WARNINGS.

...GALE WARNING...
.LOW 25S164W 1004 MB MOVING SE 30 KT. COLD FRONT FROM 25S160W TO
20S164W TO 13S173W THENCE STATIONARY FRONT TO 11S175E TO 09S160E.
COLD FRONT MOVING E 15 KT. WINDS 30 TO 35 KT S OF 23S BETWEEN
156W AND 160W. WINDS 20 TO 30 KT ELSEWHERE S OF A LINE FROM
25S150W TO 20S159W TO 21S170W TO 25S171W. ISOLATED MODERATE TSTMS
WITHIN 45 NM OF COLD FRONT S OF 17S.
.24 HOUR FORECAST LOW MOVED WELL S OF FORECAST AREA. FRONT FROM
25S153W TO 17S164W TO 11S180W TO 09S160E. WINDS 20 TO 25 KT S OF
22S BETWEEN 147W AND 165W.
.48 HOUR FORECAST FRONT FROM 25S143W TO 20S154W TO 17S167W TO
11S180W TO 10S160E. SE WINDS 20 TO 25 KT FROM 15S TO 20S BETWEEN
154W AND 167W.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 25S179E TO 21S166E TO 17S160E MOVING E 10 KT.
.24 HOUR FORECAST FRONT FROM 25S173E TO 20S168E TO 15S160E.
.48 HOUR FORECAST FRONT FROM 25S175E TO 20S170E TO 16S160E.

.TROUGH FROM 03S151W TO 10S143W MOVING W 15 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 12S163W TO 19S162W MOVING S 10 KT. ISOLATED
MODERATE TSTMS FROM 10S TO 19S BETWEEN 160W AND 163W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 07S176E 1010 MB NEARLY STATIONARY. RIDGE FROM 06S166E
THROUGH HIGH TO 09S176W.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 25S143W TO 15S152W TO 09S159W MOVING SE 20 KT.

.RIDGE FROM 25S175E TO 21S169E MOVING E 10 KT.

.RIDGE FROM 22S160E TO 22S164E BUILDING E 1O KT.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 12 TO 16 FT S OF 22S BETWEEN 154W AND 174W. SEAS 8 TO 12 FT
ELSEWHERE S OF A LINE FROM 25S131W TO 17S150W TO 18S175W TO
20S180W TO 25S170E.
.24 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE FROM 25S146W TO
18S162W TO 18S174W TO 25S178W. ALSO SEAS 8 TO 10 FT FROM 08S TO
20S E OF 135W.
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE FROM 25S142W TO
20S150W TO 18S164W TO 25S170W. SEAS 8 TO 10 FT FROM 06S TO 22S
E OF 130W.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

.ISOLATED MODERATE TSTMS FROM 02S TO 06S BETWEEN 157W AND 162W.

$$

.FORECASTER BIRCHARD. HONOLULU HI.



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