High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 111525
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON DEC 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC DEC 11 2017.
24 HOUR FORECAST VALID 1200 UTC DEC 12 2017.
48 HOUR FORECAST VALID 1200 UTC DEC 13 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N160W TO 24N179E TO 28N160E MOVING E 40 KT ALONG
30N...AND NEARLY STATIONARY W OF 179E. WINDS 20 TO 30 KT N OF 28N
BETWEEN 154W AND 162W. WINDS 20 TO 25 KT WITHIN 120 NM N OF FRONT W
OF 176E.
.18 HOUR FORECAST FRONT FROM 30N155W TO 24N165W TO 21N178W. WINDS 25
TO 35 KT N OF LINE FROM 27N154W TO 25N158W TO 27N172W...STRONGEST N
OF 28N BETWEEN 159W AND 169W. N TO NE WINDS 20 TO 25 KT FROM 22N TO
25N BETWEEN 170W AND 179W.
.24 HOUR FORECAST FRONT FROM 30N152W TO 22N165W TO 20N178W. WINDS 25
TO 35 KT N OF LINE FROM 28N144W TO 24N154W TO 27N172W...STRONGEST N
OF 28N BETWEEN 155W AND 168W. NE WINDS 20 TO 25 KT FROM 21N TO 24N
BETWEEN 172W AND 180W.
.48 HOUR FORECAST FRONT FROM 30N144W TO 20N155W TO 16N179W. S TO SW
WINDS 20 TO 30 KT N OF 26N E OF 145W. NE TO E WINDS 20 TO 30 KT FROM
17N TO 21N BETWEEN 167W AND 180W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 26N140W TO 22N150W TO 22N159W NEARLY STATIONARY AND
WEAKENING.
.24 HOUR FORECAST FRONT DISSIPATED OVER FORECAST WATERS.

.12 HOUR FORECAST FRONT NEAR 30N160E. S TO SW WINDS 20 TO 25 KT N OF
28N W OF 167E.
.24 HOUR FORECAST FRONT NEAR 30N160E. WINDS EASED TO 20 KT OR LESS
OVER FORECAST WATERS.
.48 HOUR FORECAST FRONT JUST N AND W OF FORECAST AREA. SW WINDS 20
TO 25 KT N OF 28N W OF 162E.

.RIDGE FROM 30N143W TO 24N160W TO 23N172W MOVING S SLOWLY AND
GRADUALLY ERODING FROM THE W.

.E WINDS 20 TO 25 KT FROM 08N TO 17N W OF 175E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 07N TO 19N W OF 180E.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 07N TO 17N W OF 169W...
AND FROM 17N TO 21N BETWEEN 165E AND 180E.

.SEAS 12 TO 13 FT N OF 23N E OF 145W. SEAS 8 TO 12 FT ELSEWHERE N OF
15N E OF 166W. SEAS 8 TO 10 FT N OF 27N W OF 166W...AND FROM 07N TO
17N W OF 178E.
.24 HOUR FORECAST SEAS 18 TO 27 FT N OF LINE FROM 29N158W TO 26N165W
TO 26N177W. SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 29N152W TO
26N160W TO 24N169W TO 24N175E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE
FROM 26N145W TO 22N161W TO 22N167E. SEAS 8 TO 10 FT ELSEWHERE N OF
08N E OF 150W. SEAS 8 TO 9 FT FROM 07N TO 17N W OF 176E.
.48 HOUR FORECAST SEAS 18 TO 19 FT N OF 23N BETWEEN 153W AND 165W.
SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 29N142W TO 16N164W TO
16N176W. SEAS 12 TO 14 FT FROM 16N TO 24N BETWEEN 176W AND 179E.
SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 27N140W TO 18N152W TO
07N172W TO 07N176E. SEAS 8 TO 11 FT FROM 07N TO 23N BETWEEN 167E AND
176E...AND FROM 08N TO 20N W OF 167E. SEAS 8 TO 9 FT S OF 16N E OF
144W.

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

.ITCZ FROM 08N140W TO 07N170W TO 06N160E. ISOLATED MODERATE TO
LOCALLY STRONG TSTMS FROM 03N TO 08N W OF 162E. ISOLATED MODERATE
TSTMS ELSEWHERE WITHIN 135 NM OF ITCZ.

$$

.FORECASTER KINEL. HONOLULU HI.



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