High Seas Forecast
Issued by NWS

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192
FZPS40 PHFO 210311
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SAT JAN 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JAN 21 2017.
24 HOUR FORECAST VALID 0000 UTC JAN 22 2017.
48 HOUR FORECAST VALID 0000 UTC JAN 23 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S146W TO 19S150W TO 16S161W. WINDS N 20 TO 30 KT
WITHIN 220 NM E AND NE FRONT E OF 150W. SCATTERED MODERATE TSTMS
WITHIN 300 NM E AND NE OF FRONT E OF 155W. ISOLATED MODERATE TO
STRONG TSTMS WITHIN 150 NM OF A LINE FROM 10S165W TO 12S155W TO
14S150W.
.24 HOUR FORECAST FRONT 25S142W TO 17S150W TO 16S160W. WINDS N 20
TO 30 KT WITHIN 220 NM E AND NE FRONT E OF 150W.
.48 HOUR FORECAST FRONT 25S142W TO 17S150W TO 15S155W. WINDS 20
TO 25 KT FROM 16S TO 22S BETWEEN 143W AND 150W.

.LOW NEAR 18S178E 1007 MB NEARLY STATIONARY. TROUGH FROM LOW TO
18S170W. ISOLATED MODERATE TSTMS WITHIN 300 NM S OF LOW.
.24 HOUR FORECAST LOW 22S177E 1008 MB. TROUGH FROM LOW TO
23S170W.
.48 HOUR FORECAST WEAKENING LOW 25S177W 1009 MB. TROUGH
DISSIPATED.

.TROUGH 11S160E TO 10S170E TO 11S179W. SCATTERED MODERATE TO
STRONG TSTMS WITHIN 420 NM N OF TROUGH...AND 120 NM S OF TROUGH.
.24 HOUR FORECAST TROUGH 10S160E TO 10S170E TO 12S178E.
.48 HOUR FORECAST TROUGH 10S160E TO 10S170E TO 12S180E.

.TROUGH 17S125W TO 25S140W. SCATTERED MODERATE TSTMS E OF A LINE
FROM 12S127W TO 25S120W.
.24 HOUR FORECAST TROUGH 20S125W TO 25S120W.
.48 HOUR FORECAST TROUGH 20S122W TO 23S120W.

.RIDGE 10S150W TO 05S180W TO 03S160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 12 FT S OF 20S BETWEEN 140W AND 150W.
.24 HOUR FORECAST SEAS 8 TO 12 FT S OF 19S BETWEEN 139W TO 148W.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 22S W OF 170E. SEAS 8 TO 9
FT WITHIN 90 NM OF A LINE FROM 12S152W AND 25S140W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.SCATTERED MODERATE TSTMS WITHIN 60NM OF A LINE FROM 10S172W TO
16S175W.

$$

.FORECASTER MORRISON. HONOLULU HI.



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