High Seas Forecast
Issued by NWS

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691
FZPN40 PHFO 090330
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC FRI DEC 09 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC DEC 09 2016.
24 HOUR FORECAST VALID 0000 UTC DEC 10 2016.
48 HOUR FORECAST VALID 0000 UTC DEC 11 2016.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST LOW W OF AREA NEAR 30N157W MOVING ENE 30 KT.
WINDS 20 TO 30 KT N OF A LINE FROM 29N165E TO 26N160E.
.48 HOUR FORECAST LOW N OF AREA. FRONT FROM 30N170E TO 27N169E TO
24N160E. WINDS 30 TO 40 KT WITHIN 180 NM E OF FRONT N OF 28N.
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 29N178E TO 26N171E TO
28N167E.

.SYNOPSIS AND FORECAST.

.LOW 02N168E 1007 MB MOVING W SLOWLY. TROUGH FROM LOW TO 02N160E.
.24 HOUR FORECAST LOW 02N164E 1008 MB. TROUGH FROM LOW TO
02N160E.
.48 HOUR FORECAST LOW 02N161E 1009 MB. TROUGH FROM LOW TO
02N160E.

.FRONT FROM 30N156W TO 24N172W MOVING E 10 KT. WINDS 20 TO 25 KT
N OF A LINE FROM 30N155W TO 28N157W TO 29N161W.
.24 HOUR FORECAST FRONT FROM 30N153W TO 23N162W THENCE TROUGH TO
14N165W. WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 30N154W TO 24N161W THENCE TROUGH TO
15N164W.

.TROUGH FROM 30N149W TO 23N159W TO 14N164W. TROUGH MOVING N
SLOWLY E OF 157W...NEARLY STATIONARY W OF 157W. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH S OF 26N.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED ABOVE.

.FRONT FROM 30N179E TO 28N172E MOVING SE 10 KT.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N178W TO 27N179W.
.48 HOUR FORECAST FRONT DISSIPATED.

.FRONT FROM 30N167E TO 27N160E MOVING E 20 KT. ISOLATED TSTMS
WITHIN 60 NM E OF FRONT.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N175E TO 28N172E TO
29N160E.
.48 HOUR FORECAST FRONT DISSIPATED.

.RIDGE FROM 26N140W TO 23N150W NEARLY STATIONARY.

.NE TO E WINDS 20 TO 25 KT FROM 09N TO 12N BETWEEN 145W AND 150W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 09N TO 14N E OF
150W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 15N E OF
150W.

.OTHERWISE WINDS 20 KT OR LESS OVER REMAINDER OF AREA.

.SEAS 8 TO 12 FT N OF A LINE FROM 30N158W TO 27N166W TO 28N174W.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF A LINE FROM 30N158W TO
26N165W TO 27N173W. SEAS 8 TO 10 FT N OF 28N W OF 170E.
.48 HOUR FORECAST SEAS 8 TO 12 FT N OF A LINE FROM 30N174W TO
25N175E TO 27N162E.

.OTHERWISE SEAS 8 FT OR LESS OVER REMAINDER OF AREA.

.ITCZ FROM 07N140W TO 10N160W TO 05N178E. SCATTERED MODERATE
TSTMS WITHIN 120 NM OF ITCZ BETWEEN 150W AND 166W. ISOLATED
TSTMS ELSEWHERE WITHIN 60 NM OF ITCZ.

$$

.FORECASTER BRAVENDER. HONOLULU HI.



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