High Seas Forecast
Issued by NWS

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498
FZPN40 PHFO 031015
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SAT DEC 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 03 2016.
24 HOUR FORECAST VALID 0600 UTC DEC 04 2016.
48 HOUR FORECAST VALID 0600 UTC DEC 05 2016.

.WARNINGS.

...GALE WARNING...
.FRONT 30N163W TO 23N170W TO 20N180W TO 20N175E TO 20N170E MOVING E SLOWLY
AND DISSIPATING. NE WINDS 25 TO 35 KT WITHIN 180 NM N OF FRONT E OF 175E.
NE WINDS 20 TO 25 KT ELSEWHERE WITHIN 400 NM N OF FRONT...AND FROM 10N TO
23N W OF 178W. ISOLATED TSTMS WITHIN 300 NM E OF FRONT E OF 170W.
.24 HOUR FORECAST NEW LOW 28N162W 1011 MB. DISSIPATING FRONT FROM 30N162W TO
LOW 24N164W TO 21N170W TO 20N175W. NE WINDS 25 TO 30 KT N OF 28N BETWEEN
FRONT AND 170W. NE WINDS 20 TO 25 KT ELSEWHERE WITHIN 450 NM N AND W OF
FRONT. ALSO NE TO E WINDS 20 TO 25 KT BETWEEN 21N AND 07N W OF 178W.
.48 HOUR FORECAST LOW 27N162W 1010 MB. TROUGH FROM 30N162W TO LOW
TO 20N162W. NE WINDS DIMINISHED TO 20 KT OR LESS. ALSO...E WINDS 20 TO
25 KT BETWEEN 08N AND 18N W OF 170E.

.SYNOPSIS AND FORECAST.

.LOW NEAR 06N172W 1008 MB NEARLY STATIONARY. TROUGH FROM 10N165W TO
LOW TO 03N180W. SCATTERED MODERATE TO STRONG TSTMS WITHIN 200 NM OF
TROUGH E OF LOW.
.24 HOUR FORECAST LOW NEAR 06N172W 1007 MB. TROUGH FROM 10N167W TO
LOW TO 03N180W.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 10N165W TO 06N172W
TO 03N180W.

.LOW 06N171E 1008 MB NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN
180 NM N OF LOW. ALSO...ISOLATED MODERATE TSTMS BETWEEN 05N AND 08 W OF
168E.
.24 HOUR FORECAST LOW DISSIPATED.

.TROUGH FROM 28N163W TO 19N162W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED ABOVE.

.TROUGH FROM 19N154W TO 13N155W MOVING N 12 KT. SCATTERED MODERATE
TSTMS WITHIN 200 NM E OF TROUGH. E TO SE WINDS 20 TO 30 KT E OF
TROUGH.
.24 HOUR FORECAST TROUGH FROM 25N155W TO 19N156W. SE WINDS 20 TO 30
KT BETWEEN TROUGH AND 150W. SE WINDS 20 TO 25 KT ELSEWHERE N OF 12N
E OF 155W.
.48 HOUR FORECAST TROUGH FROM 30N153W TO 25N155W. S TO SE WINDS
20 TO 30 KT BETWEEN TROUGH AND 148W.

.FRONT JUST OF 30N160E MOVING S SLOWLY.
.12 HOUR FORECAST FRONT THROUGH 30N160E. NE WINDS 20 TO 25 KT N OF
FRONT.
.24 HOUR FORECAST FRONT 30N170E TO 29N165E TO 28N160E. NE WINDS
20 TO 25 KT N OF FRONT.
.48 HOUR FORECAST FRONT 30N176E TO 28N169E TO 30N160E.
WINDS 20 TO 25 KT N OF FRONT.

.RIDGE 30N168E TO 27N160E MOVING SE SLOWLY...ERODING W OF 170E.

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

.SEAS 12 TO 15 FT WITHIN 120 NM EITHER SIDE OF A LINE FROM 30N165W
TO 24N175W TO 20N170E. SEAS 8 TO 12 FT BETWEEN 10N AND 22N E OF
155W. SEAS 8 TO 11 FT ELSEWHERE N OF A LINE FROM 10N160E TO
06N178W TO 10N155W.
.24 HOUR FORECAST SEAS 10 TO 16 FT N OF 23N BETWEEN 160W AND 175W.
SEAS 8 TO 12 FT N OF 10N E OF 155W. SEAS 8 TO 11 FT ELSEWHERE BETWEEN
A LINE FROM 30N177W TO 25N170E TO 23N160E...AND ANOTHER LINE FROM
30N155W TO 20N165W TO 07N177W TO 07N160E. SEAS 8 TO 11 FT ALSO N OF
A LINE FROM 30N165E TO 27N160E.
.48 HOUR FORECAST SEAS 8 TO 11 FT N OF 20N BETWEEN 155W AND 180W...
AND N OF 24N FROM 145W TO 155W...AND FROM 18N TO 06N W OF 180W.
SEAS 8 TO 10 FT ELSEWHERE N OF 07N W OF 170W. SEAS 8 TO 9 FT
ELSEWHERE BETWEEN 10N AND 24N E OF 155W.

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

.ITCZ...09N140W TO 10N160W. ISOLATED TSTMS WITHIN 100 NM N OF ITCZ
E OF 143W.

$$

.FORECASTER LAU. HONOLULU HI.



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