High Seas Forecast
Issued by NWS

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554
FZPN40 PHFO 220333
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC WED FEB 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 22 2017.
24 HOUR FORECAST VALID 0000 UTC FEB 23 2017.
48 HOUR FORECAST VALID 0000 UTC FEB 24 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N167E TO 25N160E MOVING E 40 KT. TROUGH FROM
30N169E TO 21N160E. WINDS 30 TO 35 KT WITHIN 180 NM E OF TROUGH
AND W OF FRONT N OF 27N. WINDS 20 TO 30 KT ELSEWHERE N OF A LINE
FROM 30N178E TO 24N169E TO 25N160E. SCATTERED MODERATE TSTMS
WITHIN 480 NM E OF TROUGH N OF 23N.
.24 HOUR FORECAST FRONT FROM 30N179W TO 24N176E TO 19N160E.
TROUGH MERGED WITH FRONT. S TO SW WINDS 20 TO 30 KT WITHIN 300 NM
E OF FRONT N OF 28N.
.48 HOUR FORECAST FRONT FROM 30N170W TO 27N174W TO 22N174E. N TO
NE WINDS 20 TO 25 KT WITHIN 180 NM N OF FRONT.

.SYNOPSIS AND FORECAST.

.FRONT FROM 22N140W TO 15N159W NEARLY STATIONARY AND WEAKENING.
WINDS DESCRIBED WITH LARGER AREA BELOW.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 23N142W TO
17N146W.
.48 HOUR FORECAST TROUGH FROM 27N144W TO 15N145W.

.NE TO E WINDS 20 TO 30 KT FROM 18N TO 22N E OF 150W...FROM 10N
TO 22N BETWEEN 150W AND 160W...AND FROM 06N TO 20N BETWEEN 160W
AND 179E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 20N TO 25N E OF
150W...FROM 11N TO 23N BETWEEN 150W AND 164W...AND FROM 05N TO 18N
BETWEEN 164W AND 178E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 10N TO 20N
BETWEEN 155W AND 175W...AND FROM 05N TO 16N BETWEEN 175W AND 170E.

.RIDGE FROM 30N151W TO 28N165W MOVING ENE 10 KT AND ERODING FROM
THE W.

.RIDGE FROM 30N174W TO 25N178E TO 19N162E MOVING E 20 KT.

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

.SEAS 18 TO 22 FT N OF A LINE FROM 30N164E TO 28N160E. SEAS 12 TO
18 FT ELSEWHERE N OF A LINE FROM 30N168E TO 26N160E. SEAS 8 TO 12
FT ELSEWHERE N OF A LINE FROM 30N164W TO 20N172W TO 20N170E TO
24N160E. SEAS 8 TO 11 FT E OF A LINE FROM 30N140W TO 21N150W TO
09N150W...AND FROM 04N TO 20N BETWEEN 150W AND 175E.
.24 HOUR FORECAST SEAS 12 TO 18 FT N OF A LINE FROM 30N179W TO
23N170W TO 21N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM
08N150W TO 02N170W TO 05N172E...AND N OF A LINE FROM 22N172E TO
18N160E. SEAS 8 TO 9 FT FROM 08N TO 24N E OF 150W.
.48 HOUR FORECAST SEAS 8 TO 13 FT N OF A LINE FROM 30N140W TO
06N160W TO 01N179W TO 04N172E TO 11N160E.

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

.SCATTERED MODERATE TSTMS FROM 03N TO 07N BETWEEN 176W AND
175E. ISOLATED MODERATE TSTMS FROM 06N TO 10N W OF 175E.

$$

.FORECASTER BRAVENDER. HONOLULU HI.



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