The High Seas Forecast for the Central North Pacific

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FZPN40 PHFO 162246
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC MON JAN 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 16 2017.
24 HOUR FORECAST VALID 1800 UTC JAN 17 2017.
48 HOUR FORECAST VALID 1800 UTC JAN 18 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N170W TO 21N170E TO 19N160E. FRONT MOVING E 20 KT E
OF 170E...NEARLY STATIONARY ELSEWHERE. WINDS 30 TO 35 KT WITHIN
360 NM E OF FRONT N OF 28N...AND N OF A LINE FROM 29N179W TO
30N170E. WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 30N152W TO
24N176E TO 29N160E. ISOLATED TSTMS WITHIN 120 NM E OF FRONT N OF
23N.
.24 HOUR FORECAST FRONT FROM 30N157W TO 26N171W TO 24N177E. WINDS
20 TO 30 KT N OF 29N BETWEEN 145W AND 157W.
.48 HOUR FORECAST WEAKENING FRONT FROM 30N140W TO 28N145W TO
28N151W. WINDS DIMINISHED TO 20 KT OR LESS.

...GALE WARNING...
.24 HOUR FORECAST NEW FRONT FROM 30N169E TO 24N162E MOVING E 40
KT. DEVELOPING FRONT FROM 30N173E TO 22N169E TO 18N160E. W WINDS
30 TO 40 KT W OF FIRST FRONT N OF 27N. WINDS 20 TO 30 KT ELSEWHERE
N OF A LINE FROM 30N179E TO 24N174E TO 23N160E.
.48 HOUR FORECAST FRONTS MERGED INTO ONE FRONT FROM 30N170W TO
18N168E. WINDS 20 TO 30 KT N OF A LINE FROM 30N160W TO 26N176W TO
29N168E.

.SYNOPSIS AND FORECAST.

.NE TO E WINDS 20 TO 25 KT E OF A LINE FROM 20N152W TO 09N175W TO
07N172W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT E OF A LINE FROM
19N147W TO 14N165W TO 08N155W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 07N TO 20N E OF
167W.

.TROUGH FROM 08N176E TO 01N175E MOVING SW 15 KT. SCATTERED
MODERATE TSTMS WITHIN 360 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 06N169E TO 00N170E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 29N140W TO 18N179E TO 17N164E NEARLY STATIONARY AND
ERODING FROM THE W.

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

.SEAS 18 TO 25 FT N OF A LINE FROM 30N176W TO 24N169E TO 301N62E.
SEAS 12 TO 18 FT ELSEWHERE N OF A LINE FROM 30N157W TO 18N163E TO
18N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N147W TO
13N160E. SEAS 8 TO 10 FT E OF A LINE FROM 20N150W TO 13N177W TO
05N177W.
.24 HOUR FORECAST SEAS 12 TO 22 FT N OF A LINE FROM 30N152W TO
28N164W TO 19N176W TO 16N177E TO 25N170E TO 24N160E. SEAS 8 TO 12
FT ELSEWHERE N OF A LINE FROM 07N140W TO 06N177E TO 10N160E.
.48 HOUR FORECAST SEAS 12 TO 18 FT N OF A LINE FROM 30N152 TO
12N172W...AND N OF A LINE FROM 26N172W TO 26N179W TO 22N164E. SEAS
8 TO 12 FT ELSEWHERE N OF A LINE FROM 07N140W TO 04N176E TO
10N170E TO 07N160E.

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

.ITCZ FROM 08N140W TO 07N146W TO 03N162W TO 06N179E. SCATTERED
MODERATE TSTMS WITHIN 60 NM OF ITCZ W OF 170W...AND WITHIN 120 NM
N OF ITCZ E OF 158W.

$$

.FORECASTER BRAVENDER. HONOLULU HI.


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