High Seas Forecast
Issued by NWS

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FZPN40 PHFO 142307
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC THU DEC 14 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 14 2017.
24 HOUR FORECAST VALID 1800 UTC DEC 15 2017.
48 HOUR FORECAST VALID 1800 UTC DEC 16 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 30N145W TO 20N148W TO 10N150W NEARLY
STATIONARY. SCATTERED MODERATE TSTMS N OF 12N BETWEEN 142W
AND 151W. E TO SE WINDS 20 TO 25 KT WITHIN 180 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 30N153W TO 21N152W TO 12N150W
TO 09N153W. WINDS 20 TO 30 KT N OF 15N E OF TROUGH.
.48 HOUR FORECAST TROUGH FROM 30N157W TO 23N157W TO 12N155W.
WINDS 20 TO 30 KT E OF A LINE FROM 17N140W TO 22N152W TO
25N162W TO 30N164W.

.COLD FRONT FROM 30N165E TO 26N160E MOVING E 15 KT. WINDS
20 TO 25 KT N OF 28N W OF 179E.
.24 HOUR FORECAST FRONT FROM 30N177E TO 25N160E. ASSOCIATED
WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 30N174W TO 24N170E TO 26N160E.
NE WINDS 20 TO 30 KT N OF FRONT E OF 175E.

.NE TO E WINDS 20 TO 30 KT FROM 08N TO 23N BETWEEN 155W AND 176E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 18N
BETWEEN 162W AND 172E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N W OF
173W...AND FROM 11N TO 28N BETWEEN 162W AND 173W.

.RIDGE FROM 30N159W TO 23N160E MOVING NE SLOWLY AND WEAKENING.

.SEAS 12 TO 16 FT N OF 13N E OF 160W...AND FROM 06N TO 22N
BETWEEN 160W AND 170E. SEAS 8 TO 12 FT ELSEWHERE N OF 10N E OF
170W AND ELSEWHERE FROM 05N TO 25N BETWEEN 160W AND 172E.
SEAS 8 TO 12 FT N OF A LINE FROM 30N174E TO 25N160E.
.24 HOUR FORECAST SEAS 8 TO 12 FT E OF A LINE FROM 30N158W TO
15N165E TO 00N178W. SEAS 8 TO 12 FT N OF LINE FROM 30N178W TO
23N160E.
.48 HOUR FORECAST SEAS 8 TO 12 FT ENTIRE AREA...EXCEPT SEAS
8 FT OR LESS SW OF A LINE FROM 20N160E TO 00N178E.

.REMAINDER OF AREA WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS.

.ITCZ FROM 10N140W TO 08N158W TO 03N179E TO 08N170E. SCATTERED
MODERATE TSTMS WITHIN 240 NM OF ITCZ.




$$

.FORECASTER BRENCHLEY. HONOLULU HI.



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