High Seas Forecast
Issued by NWS

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FZPN40 PHFO 201115 CCA
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC FRI JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC JAN 20 2017.
24 HOUR FORECAST VALID 0600 UTC JAN 21 2017.
48 HOUR FORECAST VALID 0600 UTC JAN 22 2017.

.WARNINGS.

...GALE WARNING...
.COR FRONT 30N161W TO 22N180W TO 17N160E N END MOVING E 25 KT
SLOWING TO LESS THAN 10 KT W OF 170E. WINDS NE 25 TO 35 KT WITHIN
360 NM N OF FRONT BETWEEN 172W AND 166E. WINDS NE AND E 20 TO 30 KT
ELSEWHERE WITHIN 480 NM N OF FRONT W OF 170W. ALSO...WINDS NE AND E
WITHIN 300 NM S OF FRONT W OF 175W.
.24 HOUR FORECAST FRONT 30N148W TO 24N160W TO 17N180W TO 15N170E.
WINDS NE 25 TO 35 KT WITHIN 400 NM N OF FRONT BETWEEN 160W AND 180W.
WINDS 20 TO 30 KT ELSEWHERE N OF FRONT. ALSO WINDS NE TO E 20 TO 30
KT BETWEEN FRONT AND 10N FROM 165W TO 168E.
.48 HOUR FORECAST FRONT 23N140W TO 18N155W TO 17N180W. WINDS NE 25
TO 35 KT WITHIN 400 N OF FRONT E OF 170W. STRONGEST WINDS BETWEEN
155W AND 168W.
WINDS NE TO E WITHIN 480 NM N OF FRONT. ALSO...WINDS NE TO E 20 TO
30 KT WITHIN 360 NM S OF FRONT W OF 150W.

...GALE WARNING...
.FRONT APPROACHING FORECAST AREA FROM W. WINDS S TO SW INCREASING TO
20 TO 30 KT N OF 28N W OF 177E BY 201800 UTC.
.24 HOUR FORECAST FRONT JUST W OF FORECAST AREA AT 30N156E TO
24N150E.
WINDS S 20 TO 30 KT N OF 26N W OF 177E.
.48 HOUR FORECAST FRONT 30N174E TO 26N170E TO 21N160E. WINDS 25 TO
40 KT N OF A LINE 30N177W TO 27N172E TO 30N165E. WINDS 20 TO 25 KT
ELSEWHERE N OF A LINE...30N170W TO 25N177E TO 26N167E TO 30N162E.

.SYNOPSIS AND FORECAST.

.FRONT ALONG 30N BETWEEN 142W AND 146W MOVING SE 15 KT.
.24 HOUR FORECAST WEAK FRONT 27N140W TO 28N143W TO 30N147W.
.48 HOUR FORECAST FRONT MOVED E OF FORECAST WATERS.

.HIGH NEAR 26N145W 1025 MB MOVING E 15 KT. RIDGES FROM HIGH TO
25N140W AND FROM HIGH TO 26N162W. RIDGE W OF HIGH DISSIPATING.
.24 HOUR FORECAST HIGH MOVED E OF FORECAST WATERS.

.RIDGE 30N167E TO 28N160E. E END OF RIDGE NEARLY STATIONARY THENCE
MOVING S TO NEAR 10 KT W OF 165E.

.WINDS 20 KT OR LESS ELSEWHERE.

.SEAS 10 TO 14 FT BETWEEN 19N AND 05N FROM 145W TO 170W...AND N OF
24N
E OF  170W. SEAS 10 TO  13 FT WITHIN 150 NM EITHER SIDE OF A LINE
FROM 28N168W TO 16N160E. SEAS 8 TO 10 FT ELSEWHERE EXCEPT 8 FT OR
LESS N OF A LINE FROM 30N173E TO 23N160E AND S OF A LINE FROM
04N160E TO 08N170E TO 00N165W TO 01N153W TO 08N140W.
.24 HOUR FORECAST SEAS 12 TO 18 FT N OF 24N E OF 150W. SEAS 10 TO 13
FT BETWEEN 27N AND 04N FROM 164W TO 165E. SEAS 8 TO 12 FT N OF A
LINE FROM 30N165E TO 28N160E. SEAS ELSEWHERE 8 TO 10 FT EXCEPT 8 FT
OR LESS BETWEEN 28N AND 24N W OF 166E AND S OF 04N W OF 160W.
.48 HOUR FORECAST SEAS 18 TO 24 FT N OF A LINE 30N170E TO 25N160E.
SEAS ELSEWHERE 12 TO 18 FT N OF A LINE 30N178E TO 24N160E. SEAS 12
TO 20 FT N OF A LINE...30N154W TO 24N153W TO 24N140W. SEAS ELSEWHERE
9 TO 15 FT BETWEEN 28N AND 04N FROM 150W TO 170E. SEAS 8 TO 10 FT
EXCEPT 8 FT OR LESS S OF 03N.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ 07N140W TO 08N163W TO 03N180W. ISOLATED MODERATE TSTMS WITHIN
100 NM OF ITCZ BETWEEN 155W AND 165W.


$$

.FORECASTER LAU. HONOLULU HI.



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