High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 211130
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC TUE NOV 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC NOV 21 2017.
24 HOUR FORECAST VALID 0600 UTC NOV 22 2017.
48 HOUR FORECAST VALID 0600 UTC NOV 23 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12S160E 1005 MB MOVING NW SLOWLY. TROUGH FROM LOW TO 12S165E TO
13S169E MOVING SW SLOWLY. ISOLATED MODERATE TSTMS FROM 02S TO 20S W
OF 170E.
.24 HOUR FORECAST LOW AND TROUGH MOVED W OF FORECAST AREA. E TO SE
WINDS 20 TO 25 KT FROM 17S TO 23S BETWEEN 160E AND 175E.
.48 HOUR FORECAST E TO NE WINDS 20 TO 30 KT S OF 19S E OF 160E.

.LOW 23S129W 1013 MB MOVING S SLOWLY. FRONT FROM 25S128W TO LOW TO
20S129W TO 18S130W TO 16S135W TO 14S137W NEARLY STATIONARY. ISOLATED
MODERATE TSTMS S OF 23S BETWEEN 124W AND 127W.
.24 HOUR FORECAST LOW MOVED S OF FORECAST AREA. WEAK FRONT FROM
25S128W TO 20S129W TO 16S136W.
.48 HOUR FORECAST FRONT WEAKENED TO A TROUGH FROM 25S131W TO 20S133W.

.FRONT FROM 25S166W TO 23S171W TO 14S171E MOVING E 10 KT S OF 23S
AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS WITHIN 120
NM OF FRONT.
.24 HOUR FORECAST FRONT FROM 25S162W TO 22S170W.
.48 HOUR FORECAST FRONT FROM 25S155W TO 24S155W TO 19S165W.

.TROUGH FROM 13S164W TO 12S153W TO 12S144W MOVING SW SLOWLY.
ISOLATED MODERATE TSTMS FROM 10S TO 20S BETWEEN 140W AND 161W...AND
FROM 11S TO 15S BETWEEN 161W AND 167W.
.24 HOUR FORECAST TROUGH FROM 14S166W TO 15S158W TO 17S152W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 07S175E TO 11S177E TO 14S178W TO 14S172W MOVING WSW
SLOWLY. SCATTERED STRONG TSTMS FROM 06S TO 14S BETWEEN 178W AND
173E. ISOLATED MODERATE TSTMS ELSEWHERE FROM 02S TO 15S BETWEEN 172E
AND 178W...AND FROM 05S TO 17S BETWEEN 167W AND 178W.
.24 HOUR FORECAST TROUGH FROM 06S173E TO 11S173E TO 14S177W TO
18S172W.
.48 HOUR FORECAST TROUGH FROM 07S169E TO 13S170E.

.RIDGE FROM 25S121W TO 18S126W NEARLY STATIONARY.

.RIDGE FROM 25S159W TO 22S166W MOVING NE SLOWLY.

.RIDGE FROM 25S176E TO 24S177E TO 24S176W TO 24S173W MOVING N SLOWLY.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 8 TO 10 FT S OF 22S BETWEEN 123W AND 134W.
.24 HOUR FORECAST SEAS DECREASED TO 8 FT OR LESS.
.48 HOUR FORECAST SEAS 8 TO 10 FT S OF 23S W OF 165E.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

$$

.HONOLULU HI.



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