High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 180445
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC THU SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 18 2014.
24 HOUR FORECAST VALID 0000 UTC SEP 19 2014.
48 HOUR FORECAST VALID 0000 UTC SEP 20 2014.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 11N151W 1009 MB MOVING NW SLOWLY. TROUGH FROM LOW TO 12N148W
TO 11N143W. ISOLATED MODERATE TSTMS WITHIN 180 NM OF LOW AND TROUGH.
.24 HOUR FORECAST LOW 13N153W 1009 MB.
.48 HOUR FORECAST LOW 14N155W 1009 MB.

.LOW 14N142W 1010 MB MOVING W SLOWLY. ISOLATED TSTMS WITHIN 120 NM
OF LOW.
.24 HOUR FORECAST LOW 13N144W 1009 MB.
.48 HOUR FORECAST LOW DISSIPATED.

.LOW 09N164W 1010 MB NEARLY STATIONARY. TROUGH FROM LOW TO 11N162W
TO 07N153W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 120 NM OF
TROUGH. ISOLATED TSTMS ELSEWHERE WITHIN 240 NM OF LOW.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 09N154W TO 10N160W TO
05N170W.
.48 HOUR FORECAST TROUGH FROM 09N156W TO 10N161W TO 06N172W.

.WEAKENING FRONT FROM 23N140W TO 21N146W MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT DISSIPATED.

.TROUGH FROM 10N179W TO 02N179E MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 300 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 10N179E TO 04N173E.
.48 HOUR FORECAST TROUGH FROM 10N177E TO 05N173E.

.TROUGH FROM 17N165E TO 12N168E TO 09N172E MOVING W 10 KT. ISOLATED
MODERATE TO LOCALLY STRONG TSTMS WITHIN 180 NM NE OF TROUGH...AND
WITHIN 120 NM SW OF TROUGH E OF 167E.
.24 HOUR FORECAST TROUGH FROM 15N164E TO 08N171E.
.48 HOUR FORECAST NEW LOW 10N165E 1009 MB. TROUGH FROM 14N161E TO
LOW TO 08N170E.

.TROUGH FROM 29N176W TO 22N179W MOVING W 10 KT. ISOLATED TSTMS
WITHIN 180 NM E OF TROUGH BETWEEN 23N AND 27N.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N168E TO 28N160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS OVER ENTIRE AREA.

.SEAS 8 TO 10 FT E OF A LINE FROM 30N149W 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 03N TO 05N BETWEEN 164E AND 172E.

$$

.FORECASTER BRAVENDER. HONOLULU HI.





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