High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 200318
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC FRI OCT 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 20 2017.
24 HOUR FORECAST VALID 0000 UTC OCT 21 2017.
48 HOUR FORECAST VALID 0000 UTC OCT 22 2017.

.WARNINGS.

NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 25S160W TO 18S170W TO 09S170E THENCE TROUGH TO
07S160E. FRONT MOVING E 10 KT S OF 18S...AND NEARLY STATIONARY
ELSEWHERE. TROUGH NEARLY STATIONARY. NE TO N WINDS 20 TO 25 KT S
OF 22S BETWEN 147W AND 155W. ISOLATED MODERATE TO LOCALLY STRONG
TSTMS WITHIN 150 NM OF FRONT AND TROUGH.
.24 HOUR FORECAST STATIONARY FRONT FROM 25S161W TO 18S170W TO
10S170E THENCE TROUGH TO 10S160E. WINDS EASED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 25S158W TO 18S170W TO 16S180E TO
11S169E THENCE TROUGH TO 09S160E.

.FRONT FROM 15S120W TO 13S130W TO 13S140W TO 14S144W NEARLY
STATIONARY. E TO SE WINDS 20 TO 25 KT S OF FRONT BETEEN 125W AND
147W.
.24 HOUR FORECAST WEAK FRONT FROM 15S120W TO 13S130W TO 11S145W.
E TO SE WINDS 20 TO 25 KT FROM 12S TO 20S BETWEEN 130W AND 150W.
.48 HOUR FORECAST WEAK FRONT FROM 15S120W TO 13S130W TO 10S150W.
WINDS EASED TO 20 KT OR LESS.

.RIDGE FROM 25S146W TO 15S160W TO 10S170W TO 05S172E NEARLY
STATIONARY.

.RIDGE FROM 25S133W TO 18S121W NEARLY STATIONARY.

.SEAS 12 TO 15 FT S OF 22S E OF 128W. SEAS 8 TO 12 FT ELSEWHERE S
OF LINE FROM 00S120W TO 18S150W TO 25S170E. SEAS 8 TO 9 FT N OF
08S BETWEEN 145W AND 160W...AND BETWEEN 12S AND 22S W OF 164E.
.24 HOUR FORECAST SEAS 8 TO 12 FT S OF 10S E OF 150W. SEAS 8 TO
10 FT S OF 20S BETWEEN 150W AND 180E.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF A LINE FROM 03S120W TO
12S142W. SEAS 8 TO 9 FT S OF 19S BETWEN 160W AND 170W.

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

$$

.FORECASTER MORRISON. HONOLULU HI.


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