High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 181030
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC THU DEC 18 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 18 2014.
24 HOUR FORECAST VALID 0600 UTC DEC 19 2014.
48 HOUR FORECAST VALID 0600 UTC DEC 20 2014.

.WARNINGS.

...GALE WARNING...
.COLD FRONT FROM 30N163E TO 28N160E MOVING E 20 KT. WINDS 25 TO 35
KT OVER FORECAST WATERS N OF 27N W OF 170E.
.24 HOUR FORECAST COLD FRONT FROM 30N173E TO 23N160E. WINDS 20 TO 30
KT WITHIN 450 NM E OF COLD FRONT N OF 28N...AND WITHIN 540 NM W OF
COLD FRONT N OF 27N.
.48 HOUR FORECAST FRONT FROM 30N172W TO 25N180E TO 22N170E TO
21N160E. WINDS 20 TO 30 KT OVER FORECAST WATERS WITHIN 390 NM N OF
FRONT. ALSO...WINDS 20 TO 25 KT WITHIN 420 NM E OF FRONT N OF 29N.

.SYNOPSIS AND FORECAST.

.WEAKENING FRONT FROM 30N159W TO 28N171W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT DISSIPATED.

.NE TO E WINDS 20 TO 25 KT FROM 07N TO 18N E OF 176W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 05N TO 24N E OF
154W...FROM 06N TO 19N BETWEEN 154W AND 168W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 20N E OF
155W...FROM 06N TO 18N BETWEEN 155W AND 170W...AND FROM 10N TO 21N W
OF 170E.

.HIGH 29N148W 1027 MB NEARLY STATIONARY. RIDGES FROM HIGH TO
28N140W...AND FROM HIGH TO 27N166W NEARLY STATIONARY.
.24 HOUR FORECAST HIGH 29N147W 1027 MB.
.48 HOUR FORECAST HIGH 30N142W 1026 MB.

.RIDGE FROM 30N169W TO 22N175E TO 21N160E MOVING E 30 KT AND ERODING
FROM THE W.

.OTHERWISE...WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 8 TO 22 FT NW OF A LINE FROM 30N168E TO 26N160E. SEAS 11 TO 14
FT N OF 27N BETWEEN 160W AND 172W. SEAS 8 TO 11 FT FROM 06N TO 20NE
OF 180E...AND ELSEWHERE N OF A LINE FROM 30N158W TO 20N170W TO
20N170E. SEAS 8 TO 9 FT FROM 12N TO 20N W OF 170E.
.24 HOUR FORECAST SEAS 18 TO 25 FT NW OF A LINE FROM 30N173E TO
27N167E TO 26N160E. SEAS 12 TO 18 FT ELSEWHERE NW OF A LINE FROM
30N176E TO 24N168E TO 21N160E. SEAS 12 TO 15 FT N OF A LINE FROM
30N142W TO 25N153W TO 30N157W. SEAS 8 TO 12 FT ELSEWHERE NW OF A
LINE FROM 30N180E TO 14N160E...AND ELSEWHERE N OF 04N E OF 170W.
SEAS 8 TO 10 FT FROM 06N TO 22N BETWEEN 170W AND 180E. SEAS 8 TO 9
FT FROM 09N TO 19N BETWEEN 180E AND 171E.
.48 HOUR FORECAST SEAS 18 TO 25 FT N OF A LINE FROM 30N175W TO
25N174E TO 30N171E. SEAS 12 TO 18 FT ELSEWHERE NW OF A LINE FROM
30N171W TO 18N175E TO 14N160E. SEAS 11 TO 13 FT N OF 15N E OF 147W.
SEAS 8 TO 12 FT FROM 03N TO 20N BETWEEN 160W AND 170W...ELSEWHERE N
OF 02N E OF 160W...AND ELSEWHERE N OF 08N W OF 170W.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REST OF FORECAST AREA.

.ITCZ FROM 04N140W TO 06N160W TO 06N176W TO 02N165E. NUMEROUS
MODERATE TO STRONG TSTMS WITHIN 180 NM OF ITCZ BETWEEN 162W AND
178W. ISOLATED MODERATE TSTMS WITHIN 180 NM OF ITCZ E OF 162W...AND
BETWEEN 178W AND 175E.

$$
.FORECASTER HOUSTON. HONOLULU HI.





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