High Seas Forecast
Issued by NWS

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198
FZPN40 PHFO 230327
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC MON JAN 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 23 2017.
24 HOUR FORECAST VALID 0000 UTC JAN 24 2017.
48 HOUR FORECAST VALID 0000 UTC JAN 25 2017.

.WARNINGS.

...GALE WARNING...
.COLD FRONT FROM 30N175W TO 25N176E TO 22N160E MOVING E 25 KT.
WINDS 30 TO 35 KT WITHIN 120 NM E OF FRONT N OF 28N. WINDS 20 TO
30 KT ELSEWHERE N OF LINE 30N164W TO 27N180W.
.24 HOUR FORECAST FRONT FROM 30N164W TO 26N180W TO 24N170E. WINDS
20 TO 25 KT WITHIN 90 NM E OF FRONT N OF 28N.
.48 HOUR FORECAST FRONT FROM 30N150W TO 28N162W DISSIPATING.
WINDS DIMINISHED TO 20 KT OR LESS.

...GALE WARNING...
.FRONT FROM 20N140W TO 17N155W TO 17N160W MOVING SSE SLOWLY AND
ERODING FROM THE W. NE TO E WINDS 30 TO 35 KT FROM 18N TO 22N
BETWEEN 154W AND 160W. WINDS 20 TO 30 KT ELSEWHERE FROM 06N TO 27N
E OF 172W.
.24 HOUR FORECAST FRONT 18N120W TO 16N150W DISSIPATING. NE TO E
WINDS 20 TO 30 KT FROM 06N TO 24N E OF 162W.
.48 HOUR FORECAST FRONT DISSIPATED. NE TO E WINDS 20 TO 25 KT
FROM 09N TO 21N E OF 155W.

...GALE WARNING...
.COLD FRONT W OF FORECAST AREA MOVING ESE 25 KT.
.24 HOUR FORECAST FRONT FROM 30N165E TO 26N160E. WIND 30 TO 35 KT
N OF 28N BETWEEN 165E AND 171E. WINDS 20 TO 30 KT ELSEWHERE N OF
LINE 30N176E TO 25N165E TO 25N160E.
.48 HOUR FORECAST FRONT FROM 30N175E TO 23N165E TO 21N160E. WINDS
20 TO 30 KT N OF LINE 30N167W TO 28N180W TO 28N160E.

.SYNOPSIS AND FORECAST.

.NE TO E WINDS 20 TO 25 KT FROM 06N TO 17N W OF 172W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 07N TO 19N W OF
162W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 18N W OF
160W.

.RIDGE FROM 30N147W TO 28N140W MOVING ESE 25 KT.

.RIDGE FROM 30N154W TO 25N177W MOVING ESE 25 KT.

.RIDGE FROM 30N171E TO 27N176E MOVING E 30 KT.

.RIDGE FROM 30N167E TO 28N160E MOVING E 30 KT.

.HIGH JUST N OF FORECAST AREA MOVING ESE 20 KT.
.24 HOUR FORECAST HIGH 30N145W 1029 MB.
.48 HOUR FORECAST HIGH MOVED E OF FORECAST AREA.

.SEAS 12 TO 18 FT W OF LINE 30N180E TO 23N170E TO 20N164E. SEAS
12 TO 15 FT IN AREA BOUNDED BY 30N140W TO 20N140W TO 15N160W TO
18N170W TO 20N170W TO 23N160W TO 30N148W TO 30N140W. SEAS 8 TO 12
FT ELSEWHERE N OF 04N.
.24 HOUR FORECAST SEAS 12 TO 16 FT IN AREA BOUNDED BY 30N172W TO
20N172E TO 20N169E TO 30N165E TO 30N172W. SEAS 12 TO 14 FT IN AREA
BOUNDED BY 30N140W TO 18N140W TO 14N162W TO 20N162W TO 23N145W TO
30N145W TO 30N140W. SEAS 8 TO 12 FT ELSEWHERE N OF 04N.
.48 HOUR FORECAST SEAS 12 TO 15 FT N OF LINE 30N164W 24N176W
24N173E AND IN AREA N OF 28N W OF 164E. SEAS 12 TO 14 FT FROM 16N
TO 20N E OF 152W. SEAS 8 TO 12 FT ELSEWHERE N OF 05N.

.WINDS 20 TO OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF
FORECAST AREA.

.ITCZ FROM 08N140W TO 04N165W TO 06N177E. ISOLATED MODERATE TSTMS
WITHIN 150 NM N OF AND 60 NM S OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 04N TO 10N W OF 175E.

$$

.FORECASTER BURKE. HONOLULU HI.



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