High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 202145
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SUN AUG 20 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 20 2017.
24 HOUR FORECAST VALID 1800 UTC AUG 21 2017.
48 HOUR FORECAST VALID 1800 UTC AUG 22 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT JUST NW OF AREA MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT NEAR 30N160E.
.48 HOUR FORECAST FRONT FROM 30N161E TO 29N160E.

.RIDGE FROM 30N169E TO 28N160E MOVING SE SLOWLY.

.WINDS 20 KT OR LESS ENTIRE FORECAST AREA.

.SEAS 8 FT OR LOWER ENTIRE FORECAST AREA.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 20N TO 27N E OF 143W.

.ITCZ FROM 12N140W TO 10N160W TO 09N180W TO 09N160E. SCATTERED
MODERATE TO STRONG TSTMS FROM 06N TO 12N BETWEEN 160W AND 180W.
ISOLATED MODERATE TSTMS FROM 03S TO 07S W OF 175E AND ELSEWHERE
WITHIN 90 NM OF ITCZ.

.OTHERWISE SCATTERED MODERATE TSTMS N OF 27N BETWEEN 150W AND 157W
AND WITHIN 90 NM OF LINE FROM 27N172E TO 25N172E TO 22N168E.

$$

.FORECASTER BURKE. HONOLULU HI.


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