High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 251535
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE JUN 25 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUN 25 2019.
24 HOUR FORECAST VALID 1200 UTC JUN 26 2019.
48 HOUR FORECAST VALID 1200 UTC JUN 27 2019.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N157W TO 24N159W THENCE A TROUGH TO 20N161W TO
18N163W. FRONT AND TROUGH NEARLY STATIONARY. S WINDS 20 TO 25 KT N
OF 29N BETWEEN FRONT AND 155W. ISOLATED MODERATE TSTMS WITHIN 60 NM
OF FRONT AND TROUGH...AND WITHIN 60 NM OF A LINE FROM 25N161W TO
21N162W TO 19N165W.
.24 HOUR FORECAST DISSIPATING FRONT FROM 30N157W TO 24N159W. TROUGH
DISSIPATED. S WINDS 20 TO 25 KT N OF 28N BETWEEN FRONT AND 154W.
.48 HOUR FORECAST NEW LOW 1008 MB 20N167W. FRONT DISSIPATED. TROUGH
FROM LOW TO 30N162W. S TO SE WINDS 20 TO 25 KT N OF 28N BETWEEN 153W
AND 157W.

.COLD FRONT FROM 30N176W TO 26N179E TO 24N176E MOVING SE 15 KT.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N171W TO 25N171W TO 21N176W
TO 20N178E.
.48 HOUR FORECAST FRONT WEAKENED TO A TROUGH FROM 30N171W TO 21N171W
TO 18N172W.

.TROUGH FROM 26N167W TO 24N167W TO 21N171W MOVING E SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 60 NM OF TROUGH BETWEEN 28N AND 22N.
.24 HOUR FORECAST TROUGH MERGED WITH THE FIRST FRONT DESCRIBED ABOVE.

.TROUGH FROM 15N166E TO 10N160E MOVING W 10 KT. SCATTERED MODERATE
TO STRONG TSTMS S OF TROUGH. ISOLATED MODERATE TSTMS ELSEWHERE
WITHIN 60 NM A LINE FROM 18N167E TO 15N166E...AND S OF 09N W OF 176E.

.24 HOUR FORECAST NEW COLD FRONT THROUGH 30N160E.
.48 HOUR FORECAST COLD FRONT FROM 30N167E TO 26N160E.

.RIDGE FROM 29N160E TO 28N162E TO 23N171E TO 19N179W TO 19N169W
MOVING S SLOWLY.

.RIDGE FROM 30N144W TO 24N150W TO 20N156W NEARLY STATIONARY.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LESS ENTIRE FORECAST AREA.

.ITCZ FROM 09N140W TO 06N168W TO 03N177W. NUMEROUS MODERATE TO
STRONG TSTMS FROM 09N TO 06N BETWEEN 149W AND 152W...FROM 08N TO 06N
BETWEEN 160W AND 170W...AND FROM 06N TO 01N BETWEEN 171W AND 178W.
ISOLATED MODERATE TSTMS WITHIN 180 NM OF ITCZ...AND S OF 08N BETWEEN
173W AND 180W.

.ISOLATED MODERATE TSTMS W OF 165E BETWEEN 22N AND 17N.

$$

.FORECASTER NINETY ONE. HONOLULU FORECAST OFFICE.


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