High Seas Forecast
Issued by NWS

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FZPN40 PHFO 241027
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SUN SEP 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 24 2017.
24 HOUR FORECAST VALID 0600 UTC SEP 25 2017.
48 HOUR FORECAST VALID 0600 UTC SEP 26 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 1011 MB JUST E OF AREA MOVING W SLOWLY.
.24 HOUR FORECAST LOW 12N144W 1012 MB.
.48 HOUR FORECAST LOW 12N146W 1012 MB.

.FRONT FROM 30N180E TO 28N171E TO 30N163E MOVING ESE 10 KT.
.24 HOUR FORECAST FRONT FROM 30N173W TO 28N180E 27N175E.
.48 HOUR FORECAST FRONT FROM 30N170W TO 27N180W.

.TROUGH FROM 30N177W TO 27N178E.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST FRONT NEAR 30N160E.
.48 HOUR FORECAST FRONT 30N164E TO 29N160E.

.TROUGH FROM 14N165W TO 09N170E MOVING W 10 KT. ISOLATED MODERATE
TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 14N168W TO 10N180E TO 07N168E.
.48 HOUR FORECAST TROUGH FROM 11N173E TO 08N160E.

.HIGH 28N160E 1018 MB MOVING E 10 KT. RIDGE FROM HIGH TO 26N180E
MOVING NE SLOWLY.
.24 HOUR FORECAST HIGH 27N170E 1017 MB.
.48 HOUR FORECAST HIGH 26N175E 1017 MB.

.RIDGE FROM 30N161W TO 26N179W MOVING SE SLOWLY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER ENTIRE AREA.

.ISOLATED MODERATE TSTMS FROM 12N TO 16N W OF 165E...AND FROM 26N
TO 28N BETWEEN 147W AND 151W.

.MONSOON TROUGH FROM 11N140W TO 11N152W.

$$

.FORECASTER MORRISION. HONOLULU HI.



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