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000
FZPN40 PHFO 171645
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC FRI MAY 17 2013

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAY 17 2013.
24 HOUR FORECAST VALID 1200 UTC MAY 18 2013.
48 HOUR FORECAST VALID 1200 UTC MAY 19 2013.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT JUST W OF FORECAST AREA NEAR 30N157E MOVING E 20 KT. SW
WINDS 20 TO 25 KT NW OF LINE 30N162E TO 29N160E.
.12 HOUR FORECAST COLD FRONT FROM 30N163E TO 28N160E. SW WINDS 20 TO
30 KT NW OF FRONT.
.24 HOUR FORECAST COLD FRONT FROM 30N167E TO 25N160E. WINDS
DECREASED TO 20 KT OR LESS.
.48 HOUR FORECAST COLD FRONT FROM 30N173E TO 27N167E TO 28N160E.
SEAS 9 TO 12 FT OVER FORECAST WATERS NW OF FRONT.

.WEAK TROUGH FROM 29N172W TO 25N174W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.WEAK TROUGH FROM 29N152W TO 24N154W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 30N160W TO 24N163W NEARLY STATIONARY.
.24 HOUR FORECAST DEVELOPING FRONT FROM 30N158W TO 25N161W.
.48 HOUR FORECAST FRONT FROM 30N153W TO 25N157W.

.RIDGE FROM 30N178E TO 24N170E TO 22N160E NEARLY STATIONARY.

.OTHERWISE...WINDS 20 KT OR LESS ACROSS REST OF FORECAST AREA.

.SEAS 9 TO 13 FT S OF 19S AND E OF A LINE FROM 00N170W TO 08N175W TO
19N170W.
.24 HOUR FORECAST SEAS 9 TO 12 FT S AND E OF A LINE FROM 00N170W TO
16N171W TO 23N150W TO 20N140W.
.48 HOUR FORECAST SEAS 9 TO 11 FT E OF 168W AND S OF A LINE FROM
19N168W TO 21N151W TO 15N140W.

.OTHERWISE...SEAS 8 FT OR LESS ACROSS REST OF FORECAST AREA.

.ITCZ FROM 08N140W TO 08N160W TO 06N180W TO 04N160E. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 180 NM OF ITCZ BETWEEN 175E AND
165E. ISOLATED MODERATE TSTMS WITHIN 120 NM OF ITCZ ELSEWHERE.

$$
.FORECASTER POWELL. HONOLULU HI.