High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 172245
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC WED SEP 17 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 17 2014.
24 HOUR FORECAST VALID 1800 UTC SEP 18 2014.
48 HOUR FORECAST VALID 1800 UTC SEP 19 2014.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 11N151W 1010 MB MOVING NW SLOWLY. TROUGH FROM LOW TO 12N148W
TO 11N143W. ISOLATED MODERATE TSTMS WITHIN 90 NM N OF LOW AND
TROUGH.
.24 HOUR FORECAST LOW 13N152W 1011 MB.
.48 HOUR FORECAST LOW 14N154W 1011 MB.

.LOW 13N140W 1011 MB MOVING W SLOWLY. ISOLATED MODERATE TSTMS WITHIN
90 NM NE OF LOW.
.24 HOUR FORECAST LOW 13N142W 1012 MB.
.48 HOUR FORECAST LOW 13N143W 1012 MB.

.WEAKENING FRONT FROM 24N140W TO 21N149W MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT DISSIPATED.

.TROUGH FROM 06N152W TO 08N156W TO 11N168W MOVING W SLOWLY. ISOLATED
MODERATE TO STRONG TSTMS WITHIN 150 NM OF TROUGH E OF 163W.
.24 HOUR FORECAST TROUGH FROM 08N153W TO 09N161W TO 07N167W.
.48 HOUR FORECAST TROUGH FROM 09N155W TO 06N172W.

.TROUGH FROM 05N176W TO 10N177E TO 15N164E MOVING W 15 KT. ISOLATED
MODERATE TSTMS WITHIN 120 NM OF TROUGH E OF 169E. ISOLATED TSTMS
ELSEWHERE WITHIN 300 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 04N177E TO 08N176E TO 15N166E.
.48 HOUR FORECAST NEW LOW 09N167E 1008 MB. TROUGH FROM 09N177E TO
LOW TO 14N160E.

.TROUGH FROM 29N175W TO 23N177W MOVING W 10 KT. ISOLATED MODERATE
TSTMS FROM 23N TO 27N BETWEEN 170W AND 178E.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N169E TO 28N160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS OVER ENTIRE AREA.

.SEAS 8 TO 10 FT E OF A LINE FROM 30N151W TO 25N143W.
.24 HOUR FORECAST SEAS DIMINISHED TO 8 FT OR LESS.

.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.

.ISOLATED MODERATE TSTMS FROM 04N TO 06N W OF 171E.

$$

.FORECASTER BRAVENDER. HONOLULU HI.




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