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National Weather Service Marine Forecast FZPN40 PHFO

FZPN40 PHFO 120337
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC TUE DEC 12 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC DEC 12 2017.
24 HOUR FORECAST VALID 0000 UTC DEC 13 2017.
48 HOUR FORECAST VALID 0000 UTC DEC 14 2017.

.WARNINGS.

GALE WARNING

.FRONT FROM 30N152W TO 25N165W TO 23N175W TO 22N175E MOVING SE AND
S TO 10 KT. W AND NW WINDS INCREASING TO 20 TO 35 KT N OF FRONT E OF
173W. SW WINDS INCREASING TO 20 TO 25 KT WITHIN 260 NM E OF FRONT
E OF 162W.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N147W TO 24N153W TO
19N165W TO 19N180W. SW WINDS 25 TO 35 KT WITHIN 160 NM E OF FRONT
N OF 28N. SW WINDS 20 TO 25 KT ELSEWHERE E OF FRONT N OF 26N.
ALSO...W TO SW WINDS 20 TO 25 KT N OF 24N BETWEEN FRONT AND 158W.
.48 HOUR FORECAST CONTINUE WEAKENING FRONT FROM 30N142W TO
25N145W TO 18N155W. WINDS DIMINISHED TO 20 KT OR LESS.

.SYNOPSIS AND FORECAST.

CONTINUATION OF FRONT DESCRIBED ABOVE
DISSIPATING FRONT FROM
22N175E TO 24N170E TO 27N165E TO 30N165E. PART OF FRONT W OF 170E
MOVING NE 15 KT. REST OF FRONT MOVING S SLOWLY. S WINDS 20 TO 30
KT N OF 28N W OF 167E.
.24 HOUR FORECAST FRONT DISSIPATED. NEW FRONT AT 30N160E.
S WINDS 20 TO 25 KT N OF 28N W OF 163E.

48 HOUR FORECAST FRONT NO CHANGE
FRONT AT 30N160E. S TO SW
WINDS 20 TO 30N N OF 28N W OF 170E.

.RIDGE FROM 27N143W TO 22N152W TO 19N160W MOVING S SLOWLY AND
GRADUALLY ERODING FROM THE W.

.E WINDS 20 TO 25 KT FROM 07N TO 20N W OF 175E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 06N TO 22N W OF 170W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 05N TO 23N W OF 170W.

.SEAS 12 TO 20 FT N OF A LINE 30N150W 28N160W 28N172E 30N170E.
SEAS 8 TO 12 FT ELSEWHERE N OF A LINE...29N160E 25N170E 25N140W.
SEAS 8 TO 10 FT ELSEWHERE N OF 09N E OF 152W...AND ALSO BETWEEN
20N AND 07N W OF 175E.

24 HOUR FORECAST SEAS 18 TO 23 FT N OF A LINE
26N154W TO
22N173W. SEAS 12 TO 18 FT N OF A LINE...30N144W 25N150W 19N174W
22N178E. SEAS 8 TO 12 FT IN THE AREA BOUNDED BY 28N140W 23N150W
14N170E 13N160E 19N160E 22N170E 30N172E. SEAS 8 TO 10 FT BETWEEN
20N AND 07N E OF 150W. SEAS 8 TO 9 FT ELSEWHERE BETWEEN 07N AND
15N W OF 170W.
.48 HOUR FORECAST SEAS 12 TO 15 FT IN THE AREA BOUNDED BY
29N140W 18N148W 11N166W 14N180W 19N180W 24N171W 30N168W. SEAS 8
TO 12 FT IN THE AREA BOUNDED BY 10N140W 10N157W 05N172W 05N160E
20N160E 21N173E 30N175W. SEAS 8 TO 10 FT N OF 28N W OF 165E.

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

.ITCZ FROM 08N140W TO 06N159W TO 08N173W TO 03N160E. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 200 NM N AND WITHIN 120 NM S OF
ITCZ W OF 180W. ALSO...AREAS OF SCATTERED MODERATE TSTMS WITHIN
120 NM N OF ITCZ W OF 170W.



.FORECASTER LAU. HONOLULU HI.