High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 181525
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC WED JAN 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JAN 18 2017.
24 HOUR FORECAST VALID 1200 UTC JAN 19 2017.
48 HOUR FORECAST VALID 1200 UTC JAN 20 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N174W TO 20N170E TO 16N160E MOVING E 40 KT ALONG 30N.
WINDS 25 TO 35 KT N OF LINE FROM 29N168W TO 27N178W TO 29N166E.
WINDS 20 TO 25 KT ELSEWHERE N OF LINE FROM 29N166W TO 25N179W TO
28N162E. ISOLATED MODERATE TSTMS WITHIN 60 NM OF FRONT N OF 26N.
.24 HOUR FORECAST FRONT FROM 30N166W TO 20N174E TO 15N160E. NE WINDS
20 TO 30 KT W OF LINE FROM 24N170E TO 22N178E TO 14N160E.
.48 HOUR FORECAST FRONT FROM 30N158W TO 21N180E TO 16N160E. WINDS 25
TO 35 KT W OF LINE FROM 30N172E TO 26N168W TO 20N176W TO 07N176W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N145W TO 26N160W TO 27N174W MOVING ESE 40 KT ALONG
30N...AND NEARLY STATIONARY W OF 155W. SW TO W WINDS 20 TO 25 KT N
OF 29N E OF 146W.
.24 HOUR FORECAST WEAK FRONT FROM 27N140W TO 30N147W. WINDS EASED TO
20 KT OR LESS OVER FORECAST WATERS.
.48 HOUR FORECAST FRONT MOVED E OF FORECAST AREA. NEW FRONT FROM
29N140W TO 30N145W.

.NE TO E WINDS 20 TO 25 KT FROM 07N TO 18N E OF 168W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 07N TO 18N E OF
168W. NE WINDS 20 TO 25 KT W OF LINE FROM 14N180E TO 07N175E TO
05N160E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 07N TO 12N E OF
176W.

.RIDGE FROM 26N140W TO 25N160W TO 19N178E NEARLY STATIONARY AND
GRADUALLY ERODING FROM THE W.

.RIDGE FROM 24N160E TO 21N169E BUILDING E 20 KT.

.WINDS 20 KT OR LESS OVER REST OF FORECAST AREA.

.SEAS 18 TO 19 FEET N OF 28N BETWEEN 159W AND 166W. SEAS 12 TO 18 FT
ELSEWHERE N OF LINE FROM 29N156W TO 15N172W TO 26N178W TO 21N160E.
SEAS 8 TO 12 FEET ELSEWHERE N OF LINE FROM 07N140W TO 05N178W TO
04N164E TO 10N160E...EXCEPT SEAS 8 FT OR LESS E OF LINE FROM 29N140W
TO 25N154W TO 18N157W.
.24 HOUR FORECAST SEAS 12 TO 16 FT N OF LINE FROM 29N140W TO 19N155W
TO 08N157W TO 08N160W. SEAS 12 TO 14 FT N OF LINE FROM 29N168W TO
25N177W TO 26N176E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 06N140W
TO 02N171W TO 04N160E.
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 28N BETWEEN 151W AND 159W.
SEAS 8 TO 12 FT ELSEWHERE E OF LINE FROM 30N175E TO 24N160E TO
05N160E. SEAS 8 TO 11 FT FROM 02N TO 05N BETWEEN 147W AND 166W.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

.ISOLATED MODERATE TO LOCALLY STRONG TSTMS S OF 04N W OF 173E.

.ITCZ FROM 06N140W TO 07N155W TO 05N164W TO 01N171W. ISOLATED
MODERATE TSTMS WITHIN 240 NM NW AND N OF ITCZ BETWEEN 156W AND 162W.

$$

.FORECASTER KINEL. HONOLULU HI.



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