High Seas Forecast
Issued by NWS

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FZPN40 PHFO 281533
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC FRI APR 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 28 2017.
24 HOUR FORECAST VALID 1200 UTC APR 29 2017.
48 HOUR FORECAST VALID 1200 UTC APR 30 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N155W TO 23N160W MOVING E SLOWLY. N TO NE WINDS 20 TO
25 KT IN AREA BOUNDED BY 30N155W 22N164W 20N170W 28N170W 30N155W.
ISOLATED MODERATE TSTMS WITHIN 180 NM OF FRONT N OF 158W.
.24 HOUR FORECAST NEW LOW 27N155W 1011 MB. FRONT FROM 30N153W
THROUGH LOW TO 23N156W TO 20N159W. E TO NE WINDS 20 TO 30 KT N OF
28N BETWEEN FRONT AND 156W. N TO NE WINDS 20 TO 25 KT N OF 27N
BETWEEN 158W AND 164W. SE WINDS 20 TO 25 KT N OF A LINE FROM 26N153W
TO 23N145W.
.30 HOUR FORECAST LOW 29N158W 1012 MB. FRONT FROM 30N157W THROUGH
LOW TO 27N155W TO 23N155W TO 18S160W. N TO NE WINDS 30 TO 35 KT
WITHIN 180 NM NW QUADRANT OF LOW. N TO NE WINDS 20 TO 30 KT
ELSEWHERE N OF A LINE FROM 29N158W TO 28N159W TO 26N166W. SE WINDS
20 TO 25 KT N OF A LINE FROM 29N157W TO 28N150W TO 25N148W TO
23N141W.
.48 HOUR FORECAST LOW 24N161W 1011 MB. ANOTHER NEW LOW 20N158W 1011
MB. FRONT FROM 30N160W TO FIRST LOW. TROUGH FROM 28N155W THROUGH
SECOND LOW TO 15N162W. NE TO N WINDS 20 TO 25 KT FROM 23N TO 30N
BETWEEN 161W AND 168W. SE WINDS 20 TO 25 KT N OF A LINE FROM 28N150W
TO 24N145W.

.SYNOPSIS AND FORECAST.

.S WINDS 20 TO 25 KT N OF A LINE FROM 30N168E TO 27N160E.
.24 HOUR FORECAST S TO SW WINDS 20 TO 25 KT N OF A LINE FROM 30N164E
TO 28N160E.
.48 HOUR FORECAST SW WINDS 20 TO 25 KT N OF A LINE FROM 30N166E TO
29N162E TO 29N160E.

.NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY 27N170W 08N170W
08N164E 21N168E 27N170W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY
24N172W 22N161W 07N177E 10N160E 15N160E 20N168E 24N172W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY
22N180W 22N170W 08N178E 14N165E 22N180W.

.RIDGE FROM 30N143W TO 25N153W MOVING S SLOWLY.

.RIDGE FROM 30N176E TO 24N160E NEARLY STATIONARY.

.SEAS 8 TO 11 FT IN AREA BOUNDED BY 30N162W 25N162W 16N176W 10N179W
13N164E 23N166E 25N175W 30N162W.
.24 HOUR FORECAST SEAS 8 TO 11 FT IN AREA BOUNDED BY 30N164W 30N153W
22N158W 06N177W 13N161E 22N168E 24N167W 30N164W.
.48 HOUR FORECAST SEAS 8 TO 13 FT N OF 24N BETWEEN 158W AND 167W.
SEAS 8 TO 10 FT IN AREA BOUNDED BY 22N175W 16N170W 06N179E 06N173E
18N162E 22N175W. SEAS 8 TO 9 FT N OF 29N BETWEEN 147W AND 149W.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.

.SCATTERED MODERATE TO STRONG TSTMS S OF 04N W OF 166E. ISOLATED
MODERATE TSTMS S OF 06N BETWEEN 148W AND 175E.

$$

.HONOLULU HI.



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