The High Seas Forecast for the Central North Pacific

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FZPN40 PHFO 212207
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE FEB 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 21 2017.
24 HOUR FORECAST VALID 1800 UTC FEB 22 2017.
48 HOUR FORECAST VALID 1800 UTC FEB 23 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N162E TO 28N160E MOVING E 40 KT. WINDS 30 TO 40 KT
N OF A LINE FROM 30N166E TO 28N160E. WINDS 20 TO 30 KT ELSEWHERE N
OF A LINE FROM 30N177E TO 25N164E TO 26N160E.
.24 HOUR FORECAST FRONT FROM 30N179E TO 24N173E TO 19N160E. WINDS
20 TO 30 KT N OF A LINE FROM 30N174W TO 27N178W TO 28N171E TO
30N164E.
.48 HOUR FORECAST FRONT FROM 30N172W TO 26N176W TO 22N175E. N TO
NE WINDS 20 TO 25 KT WITHIN 180 NM N OF FRONT.

.SYNOPSIS AND FORECAST.

.FRONT FROM 22N140W TO 15N157W NEARLY STATIONARY AND WEAKENING.
WINDS DESCRIBED WITH LARGER AREA BELOW.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 22N140W TO
14N147W.
.48 HOUR FORECAST TROUGH FROM 26N144W TO 14N146W.

.NE TO E WINDS 20 TO 30 KT FROM 10N TO 22N E OF 150W...AND FROM
06N TO 20N BETWEEN 150W AND 179W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 20N TO 25N E OF
150W...FROM 10N TO 23N BETWEEN 150W AND 164W...AND FROM 06N TO 20N
BETWEEN 164W AND 178E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 08N TO 20N
BETWEEN 152W AND 170W...AND FROM 06N TO 16N BETWEEN 170W AND 170E.

.RIDGE FROM 30N148W TO 29N140W MOVING ENE 10 KT.

.RIDGE FROM 30N151W TO 27N168W MOVING ENE 10 KT AND ERODING FROM
THE W.

.RIDGE FROM 30N177W TO 24N174E TO 20N161E MOVING E 20 KT.

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

.SEAS 12 TO 18 FT N OF A LINE FROM 30N164E TO 28N160E. SEAS 8 TO
12 FT ELSEWHERE N OF A LINE FROM 30N167W TO 20N170E TO 25N160E.
SEAS 8 TO 11 FT N OF 10N BETWEEN 140W AND 150W...AND FROM 05N TO
20N BETWEEN 150W AND 170E.
.24 HOUR FORECAST SEAS 12 TO 19 FT N OF A LINE FROM 30N178E TO
21N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 07N140W TO
03N168W TO 05N175E...AND N OF A LINE FROM 25N175E TO 19N160E.
EXCEPT SEAS 8 FT OR LESS N OF 24N BETWEEN 140W AND 155W.
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF A LINE FROM 30N172W TO
24N179W TO 22N167E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM
30N143W TO 06N157W TO 02N175W TO 04N172E TO 13N160E.

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

.SCATTERED MODERATE TSTMS FROM 03N TO 07N BETWEEN 174W AND
177E. ISOLATED MODERATE TSTMS FROM 06N TO 10N W OF 177E.

$$

.FORECASTER BRAVENDER. HONOLULU HI.


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