High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 231100
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC SAT MAY 23 2015

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23 2015.
24 HOUR FORECAST VALID 0600 UTC MAY 24 2015.
48 HOUR FORECAST VALID 0600 UTC MAY 25 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW JUST S OF AREA NEAR 26S141W 1015 MB MOVING ESE 10 KT. FRONT
FROM LOW TO 25S142W TO 20S150W TO 15S160W...CONTINUING AS A TROUGH
TO 14S170W TO 12S180E. FRONT AND TROUGH NEARLY STATIONARY. E TO SE
WINDS 20 TO 25 KT WITHIN 120 NM S OF TROUGH. ISOLATED MODERATE TSTMS
WITHIN 210 NM OF FRONT S OF 22S...AND WITHIN 120 NM OF TROUGH
BETWEEN 165W AND 175W.
.24 HOUR FORECAST LOW MOVED FAR S OF FORECAST AREA. FRONT FROM
25S139W TO 20S150W TO 16S160W...CONTINUING AS A TROUGH TO 14S180E.
WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST WEAKENING FRONT FROM 25S130W TO 23S150W...
CONTINUING AS A TROUGH TO 19S158W TO 15S175W.

.LOW 03S163E 1009 MB MOVING W SLOWLY. TROUGH FROM 03S160E TO LOW TO
06S170E TO 12S180E. ISOLATED MODERATE TO LOCALLY STRONG TSTMS N OF
13S W OF 180E.
.24 HOUR FORECAST LOW MOVED W OF AREA. TROUGH FROM 03S160E TO
07S170E.
.48 HOUR FORECAST TROUGH FROM 03S160E TO 05S170E.

.COMPLEX SYSTEM WITH MAIN COLD FRONT FROM 25S170E TO 22S166E TO
18S160E MOVING E 10 KT. SECOND COLD FRONT FROM 25S164E TO 24S160E
MOVING E 15 KT...AND MERGING WITH MAIN COLD FRONT WITHIN 18 HOURS.
WINDS 20 TO 25 WITHIN 270 NM E OF MAIN COLD FRONT S OF 23S...AND
OVER FORECAST WATERS S OF SECOND COLD FRONT.
.24 HOUR FORECAST FRONT FROM 25S180E TO 21S173E TO 17S160E. WINDS 20
TO 25 KT OVER FORECAST WATERS S OF FRONT W OF 164E.
.48 HOUR FORECAST FRONT FROM 25S171W TO 21S179W TO 16S170E TO
13S160E. WINDS 20 TO 25 KT FROM 12S TO 22S W OF 178E.

.RIDGE FROM 25S172W TO 21S174E MOVING E 15 KT.

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

.SEAS 8 TO 10 FT S OF 18S BETWEEN 130W AND 155W...AND S OF 24S W OF
162E. SEAS 8 TO 9 FT S OF 12S E OF 130W...AND FROM 10S TO 18S
BETWEEN 153W AND 168W.
.24 HOUR FORECAST SEAS 8 TO 13 FT SW OF A LINE FROM 25S179W TO
21S170E TO 19S160E. SEAS 8 TO 9 FT S OF 10S E OF 133W...AND S OF 22S
BETWEEN 133W AND 149W.
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE FROM 25S169W TO
16S175E TO 21S167E TO 12S165E TO 12S160E. SEAS 8 TO 9 FT FROM 08S TO
17S E OF 129W.

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

$$
.FORECASTER HOUSTON. HONOLULU HI.





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