High Seas Forecast
Issued by NWS

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533
FZPN40 PHFO 212225
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SUN JAN 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 21 2018.
24 HOUR FORECAST VALID 1800 UTC JAN 22 2018.
48 HOUR FORECAST VALID 1800 UTC JAN 23 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N166E TO 22N160E MOVING E 15 KT. S TO SW WINDS 20 TO
30 KT BETWEEN FRONT AND 173E N OF 27N. ISOLATED MODERATE TSTMS N OF
25N BETWEEN 168E AND 176E...FROM 22N TO 25N BETWEEN 173E AND 175E...
AND WITHIN 45 NM OF LINE FROM 27N166E TO 23N163E.
.24 HOUR FORECAST FRONT FROM 30N175E TO 20N166E TO 18N160E. WINDS 20
TO 30 KT N OF 27N BETWEEN 167E AND 174W.
.48 HOUR FORECAST FRONT FROM 30N173W TO 23N180E TO 18N160E. WINDS 20
TO 30 KT N OF LINE FROM 28N165W TO 26N176W TO 29N178E.

.FRONT FROM 30N156W TO 26N160W MOVING E 10 KT.
.24 HOUR FORECAST WEAK FRONT FROM 30N151W TO 26N156W.
.48 HOUR FORECAST FRONT DISSIPATED OVER FORECAST WATERS.

.TROUGH FROM 30N175W TO 27N178E MOVING N SLOWLY.
.24 HOUR FORECAST TROUGH MOVED N OF FORECAST AREA.

.RIDGE FROM 30N140W TO 26N156W MOVING N SLOWLY AND GRADUALLY ERODING
FROM THE W.

.RIDGE FROM 30N170W TO 29N166W TO 28N161W MOVING NE SLOWLY.

.RIDGE FROM 27N175E TO 23N170E TO 21N164E MOVING E 20 KT AND ERODING
FROM W.

.E WINDS 20 TO 25 KT FROM 08N TO 18N BETWEEN 150W AND 179W...AND
FROM 08N TO 22N E OF 150W.
.24 HOUR FORECAST E WINDS 20 AND 25 KT FROM 09N TO 15N BETWEEN 153W
AND 165W...AND FROM 10N TO 19N E OF 153W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 11N TO 17N BETWEEN 152W
AND 167W...AND FROM 12N TO 20N E OF 152W.

.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.

.SEAS 12 TO 13 FT N OF 27N BETWEEN 169W AND 177E. SEAS 8 TO 12 FT
ELSEWHERE N OF 05N E OF 174E. SEAS 8 TO 11 FT N OF 07N W OF 174E.
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF 03N E OF 170E...EXCEPT SEAS 8
FT OR LESS N OF 25N E OF 149W. SEAS 8 TO 11 FT N OF 21N BETWEEN 161E
AND 170E. SEAS 8 TO 9 FT FROM 07N TO 13N W OF 170E.
.48 HOUR FORECAST SEAS 8 TO 12 FT E OF 175W. SEAS 8 TO 11 FT N OF
25N BETWEEN 171E AND 175W. SEAS 8 TO 10 FT IN AREA BETWEEN 175W AND
LINE FROM 18N175W TO 12N170E TO 01N176E TO 03N175W. SEAS 8 TO 9 FT
FROM 21N TO 24N BETWEEN 163E AND 171E.

.SEAS 8 FT OR LESS REMAINDER OF FORECAST AREA.

.ISOLATED MODERATE TSTMS FROM 21N TO 24N BETWEEN 175W AND 178W.

.ITCZ FROM 08N140W TO 06N160W TO 04N175E TO 02N160E. ISOLATED
MODERATE TSTMS WITHIN 150 NM N...AND 60 NM S...OF ITCZ...AND
ELSEWHERE FROM 06N TO 09N BETWEEN 168E AND 171E.

$$

.FORECASTER KINEL. HONOLULU HI.



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