High Seas Forecast
Issued by NWS

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000
FZPS40 PHFO 230325
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC MON OCT 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23 2017.
24 HOUR FORECAST VALID 0000 UTC OCT 24 2017.
48 HOUR FORECAST VALID 0000 UTC OCT 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 23S120W 16S126W 12S138W NEARLY STATIONARY. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF FRONT S OF 16S.
.24 HOUR FORECAST WEAK FRONT 18S120W 15S125W 12S138W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 16S127W 11S143W.

.FRONT 25S149W 21S156W 17S170W 19S178E MOVING E 15 KT S OF 21S
AND NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS WITHIN
60 NM OF FRONT.
.24 HOUR FORECAST FRONT 25S145W 21S150W 17S165W 20S178W.
.48 HOUR FORECAST FRONT 25S142W 21S150W.

.FRONT 25S166E 19S160E MOVING E 10 KT.
.24 HOUR FORECAST FRONT 25S173E 19S165E.
.48 HOUR FORECAST FRONT 25S179E 19S169E.

.TROUGH 14S146W 10S165W 08S177W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF TROUGH W OF 160W AND WITHIN 60
NM OF TROUGH E OF 160W.
.24 HOUR FORECAST TROUGH 09S165W 08S179W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 16S163E 12S167E 10S172E MOVING S SLOWLY. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 18S166E 12S162E.
.48 HOUR FORECAST TROUGH 18S168E 13S164E.

.RIDGE 25S143W 21S151W MOVING E SLOWLY.

.RIDGE 25S165W 24S155W MOVING E 10 KT.

.RIDGE 25S176E 21S166E MOVING E SLOWLY.

.WINDS 20 KT OR LESS ENTIRE FORECAST AREA.

.SEAS 8 FT OR LOWER ENTIRE FORECAST AREA.

$$

.FORECASTER WROE. HONOLULU HI.



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