High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 272315
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC TUE JAN 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC JAN 27 2015.
24 HOUR FORECAST VALID 1800 UTC JAN 28 2015.
48 HOUR FORECAST VALID 1800 UTC JAN 29 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 15S174W 1002 MB NEARLY STATIONARY. TROUGH FROM 16S170W TO LOW
TO 15S180E TO 18S166E. WINDS 20 TO 25 KT...SEAS 8 TO 10 FT AND
NUMEROUS STRONG TSTMS WITHIN 270 NM N QUADRANT OF LOW. ISOLATED
MODERATE TO STRONG TSTMS ELSEWHERE WITHIN 720 NM NW...N AND NE OF
TROUGH AND LOW.
.24 HOUR FORECAST LOW...POSSIBLE DEVELOPING TROPICAL CYCLONE...
13S172W 1002 MB. TROUGH FROM 13S167W TO LOW TO 14S175E TO 17S160E.
WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT WITHIN 300 NM N QUADRANT OF
LOW. WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT ELSEWHERE WITHIN 420 NM N
OF TROUGH AND LOW.
.48 HOUR FORECAST LOW...POSSIBLE DEVELOPING TROPICAL CYCLONE...
14S171W 998 MB. TROUGH FROM 20S165W LOW TO SECOND DEVELOPING LOW
1003 MB NEAR 12S175E TO 18S160E. WINDS 25 TO 30 KT AND SEAS 10 TO
14 FT WITHIN 420 NM N AND E QUADRANTS OF LOW NEAR 14S171W. WINDS 20
TO 25 KT AND SEAS 8 TO 10 FT ELSEWHERE WITHIN 420 NM N OF TROUGH AND
LOWS.

.LOW 19S158W 1006 MB MOVING SW SLOWLY. WINDS 20 TO 25 KT AND
SCATTERED STRONG TSTMS WITHIN 210 NM NE QUADRANT OF LOW.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 17S163W TO 21S160W.
WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED IN PARAGRAPH
ABOVE.

.TROUGH FROM 25S164E TO 22S168E NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH FROM 25S166E TO 22S168E.
.48 HOUR FORECAST TROUGH FROM 25S167E TO 23S168E.

.WEAK FRONT FROM 25S145W TO 23S150W TO 24S158W MOVING NE SLOWLY NEAR
25S AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS WITHIN
90 NM N OF FRONT.
.24 HOUR FORECAST FRONT FROM 25S144W TO 22S150W TO 23S155W.
.48 HOUR FORECAST FRONT FROM 25S145W TO 23S150W TO 25S158W.

.TROUGH FROM 25S133W TO 20S138W MOVING SW 10 KT. SCATTERED MODERATE
TSTMS WITHIN 270 NM N AND NE OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 25S136W TO 22S139W.
.48 HOUR FORECAST TROUGH MOVED S OF AREA.

.RIDGE FROM 25S120W TO 22S131W MOVING SW 10 KT.

.RIDGE FROM 25S140W TO 12S155W TO 00S176E NEARLY STATIONARY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS OVER REST OF FORECAST
AREA.

$$
.FORECASTER DWROE. HONOLULU HI.




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