High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 170445
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 17 2014.
24 HOUR FORECAST VALID 0000 UTC SEP 18 2014.
48 HOUR FORECAST VALID 0000 UTC SEP 19 2014.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 10N149W 1009 MB MOVING NW SLOWLY. TROUGH FROM LOW TO 08N157W.
SCATTERED MODERATE TSTMS WITHIN 300 NM E OF LOW...WITHIN 180 NM S OF
TROUGH...AND WITHIN 90 NM N OF TROUGH.
.24 HOUR FORECAST LOW 11N151W 1009 MB. TROUGH FROM LOW TO 09N155W.
.48 HOUR FORECAST LOW 12N152W 1009 MB. TROUGH FROM LOW TO 10N155W.

.WEAKENING FRONT FROM 25N140W TO 21N149W MOVING SE 10 KT.
.24 HOUR FORECAST FRONT FROM 24N140W TO 22N143W.
.48 HOUR FORECAST FRONT MOVED E OF AREA.

.TROUGH FROM 29N172W TO 24N172W MOVING NW 10 KT. ISOLATED TSTMS
WITHIN 90 NM OF TROUGH N OF 26N.
.24 HOUR FORECAST TROUGH FROM 30N175W TO 26N178W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 25N161E TO 20N161E TO 14N164E MOVING W 10 KT. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.TROUGH FROM 15N174E TO 11N170E TO 06N160E MOVING W 10 KT. SCATTERED
MODERATE TSTMS WITHIN 300 NM SE OF TROUGH...AND FROM 14N TO 17N
BETWEEN 171E AND 176E.
.24 HOUR FORECAST TROUGH FROM 14N169E TO 09N164E TO 08N160E.
.48 HOUR FORECAST TROUGH FROM 14N167E TO 10N164E TO 09N160E.

.RIDGE FROM 21N140W TO 20N148W NEARLY STATIONARY AND ERODING FROM
THE W.

.RIDGE FROM 30N164E TO 29N160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS OVER ENTIRE AREA.

.SEAS 8 TO 10 FT N OF 28N E OF 151W.
.24 HOUR FORECAST SEAS 8 TO 9 FT E OF A LINE FROM 30N146W TO
25N140W.
.48 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.

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

.ITCZ FROM 07N159W TO 06N166W TO 13N177E. SCATTERED MODERATE TO
LOCALLY STRONG TSTMS WITHIN 180 NM OF ITCZ.

$$

.FORECASTER BRAVENDER. HONOLULU HI.





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