High Seas Forecast
Issued by NWS

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FZPN40 PHFO 232201
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC MON APR 23 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 23 2018.
24 HOUR FORECAST VALID 1800 UTC APR 24 2018.
48 HOUR FORECAST VALID 1800 UTC APR 25 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N146W TO 28N154W TO 28N163W MOVING ESE 10 KT.
.24 HOUR FORECAST FRONT FROM 28N140W TO 27N148W.
.48 HOUR FORECAST DISSIPATING FRONT E OF FORECAST AREA.

.COLD FRONT FROM 30N166E TO 28N160E MOVING E 20 KT.
.24 HOUR FORECAST FRONT FROM 30N178E TO 28N168E TO 27N160E.
.48 HOUR FORECAST FRONT DISSIPATED.

.RIDGE FROM 30N176W TO 26N173E.
.24 HOUR FORECAST RIDGE FLATTENED OVER FORECAST AREA.

.WINDS E TO NE 20 TO 30 KT FROM 18N TO 11N BETWEEN 167E AND 155W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 30 KT FROM 22N TO 10N BETWEEN
160E AND 155W.
.48 HOUR FORECAST WINDS E TO NE 20 TO 30 KT FROM 25N TO 09N W OF
162W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 11 FT NW OF A LINE FROM 30N140W TO 20N150W...AND ALSO
FROM 22N TO 10N BETWEEN 167E AND 152W.
.24 HOUR FORECAST SEAS 8 TO 10 FT NW OF A LINE FROM 27N140W TO
25N148W...AND ALSO FROM 22N TO 10N W OF 157W.
.48 HOUR FORECAST SEAS 8 TO 11 FT WITHIN A POLYGON BOUND BY
30N170E 30N168W 25N173W 15N160W 10N179W 10N160E 22N160E 30N160E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 07N140W TO 08N148W TO 11N159W TO 08N172W TO 07N179E TO
07N172E. ISOLATED MODERATE TSTMS WITHIN 180 NM EITHER SIDE
LINE OF CONVERGENCE.

.OTHERWISE SCATTERED STRONG TSTMS S OF 12N W OF 165E. ISOLATED
MODERATE TO STRONG TSTMS S OF 08N W OF 172E.

$$

.FORECASTER BEDAL. HONOLULU HI.



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