High Seas Forecast
Issued by NWS

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FZPS40 PHFO 241040
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC FRI NOV 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC NOV 24 2017.
24 HOUR FORECAST VALID 0600 UTC NOV 25 2017.
48 HOUR FORECAST VALID 0600 UTC NOV 26 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 11S167E 1008 MB NEARLY STATIONARY. TROUGH FROM 07S165E TO LOW
TO 15S172E NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 150 NM
OF LOW AND TROUGH.
.24 HOUR FORECAST LOW 10S165E 1006 MB. TROUGH FROM 05S164E TO LOW
TO 14S174E.
.48 HOUR FORECAST LOW 09S165E 1005 MB. TROUGH FROM 06S163E TO LOW
TO 13S172E.

.FRONT FROM 25S147W TO 18S153W TO 17S156W TO 16S170W TO 16S180E...
CONTINUING AS A TROUGH TO 15S172E. FRONT MOVING E 10 KT E OF 156W.
TROUGH AND REMAINDER OF FRONT NEARLY STATIONARY. E TO SE WINDS 20
TO 25 KT WITHIN 240 NM S OF FRONT W OF 170W...AND S OF 20S BETWEEN
180E AND 172E. SCATTERED MODERATE TO STRONG TSTMS WITHIN 180 NM N
OF FRONT BETWEEN 167W AND 174W. ISOLATED MODERATE TSTMS ELSEWHERE
WITHIN 150 NM OF FRONT AND TROUGH.
.24 HOUR FORECAST FRONT FROM 25S145W TO 18S154W TO 16S160W...
CONTINUING AS A TROUGH TO 16S170W TO 14S174E. E TO SE WINDS 20
TO 25 KT WITHIN 240 NM S OF TROUGH W OF 165W.
.48 HOUR FORECAST FRONT FROM 25S144W TO 21S153W...CONTINUING AS A
TROUGH TO 21S160W TO 15S172W TO 13S172E. E TO SE WINDS 20 TO 25
KT S OF TROUGH.

.TROUGH FROM 25S164E TO 22S160E MOVING SW SLOWLY. NE TO E WINDS
20 TO 30 KT S OF 20S W OF 167E. SCATTERED MODERATE TSTMS S OF 19S
W OF 169E.
.24 HOUR FORECAST TROUGH MOVED JUST SW OF AREA. NE TO E WINDS 20 TO
25 KT S OF 22S W OF 167E.
.48 HOUR FORECAST TROUGH MOVED FAR SW OF AREA. WINDS DIMINISHED TO
20 KT OR LESS.

.TROUGH FROM 09S175E TO 12S174W NEARLY STATIONARY. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 180 NM SW OF TROUGH W OF 178E.
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT AND TROUGH DESCRIBED
ABOVE.

.RIDGE FROM 25S125W TO 12S145W TO 09S160W TO 08S180E NEARLY
STATIONARY.

.RIDGE FROM 25S169E TO 19S163E NEARLY STATIONARY.

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

.SEAS 8 TO 10 FT S OF 22S W OF 170E.
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 15S BETWEEN 169W AND 180E.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF A LINE FROM 25S155W TO
16S172W TO 18S170E.

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

$$

.FORECASTER HOUSTON. HONOLULU HI.



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