High Seas Forecast
Issued by NWS

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459
FZPN40 PHFO 232205
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC FRI JUN 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1800 UTC JUN 23 2017.
24 HOUR FORECAST VALID 1800 UTC JUN 24 2017.
48 HOUR FORECAST VALID 1800 UTC JUN 25 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25N166E 20N163E MOVING NW 10 KT.
.24 HOUR FORECAST TROUGH 28N163E 25N160E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.TROUGH 30N158W 28N163W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 30N161W 28N162W
.24 HOUR FORECAST TROUGH DISSIPATED.

.ITCZ 06N140W 04N160W 06N180W 04N170E 03N160E. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF ITCZ.

.RIDGE 30N170E 27N160E NEARLY STATIONARY.

.24 HOUR FORECAST SEAS 8 TO 9 FT NE OF LINE 27N140W
30N145W.
.48 HOUR FORECAST SEAS 8 FT NE OF LINE 29N140W 30N145W.

.REMAINDER OF AREA SEAS LESS THAN 8 FT. WINDS 20 KT OR
LESS ENTIRE AREA.

.ISOLATED MODERATE TSTMS WITHIN 60 NM OF 23N177W.

$$
.HONOLULU FORECASTER.



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