High Seas Forecast
Issued by NWS

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FZPN40 PHFO 291530
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SAT APR 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 29 2017.
24 HOUR FORECAST VALID 1200 UTC APR 30 2017.
48 HOUR FORECAST VALID 1200 UTC MAY 01 2017.

.WARNINGS.

...GALE WARNING...
.LOW NEAR 29N158W 1009 MB MOVING SW 10 KT. FRONT FROM LOW TO
25N155W 20N160W MOVING SE SLOWLY. WINDS 20 TO 35 KT WITHIN 300 NM
W AND NW SEMICIRCLES OF LOW. WINDS 20 TO 25 KT N OF LINE 20N140W
26N154W 20N161W 11N166W 03N176W 10N160E...AND S OF LINE 30N167W
22N180W 20N160E. SEE SEAS BELOW. SCATTERED MODERATE TSTMS WITHIN
180 NM E OF FRONT AND LOW.
.24 HOUR FORECAST LOW 25N161W 1010 MB. WINDS 20 TO 30 KT WITHIN
300 NM NW SEMICIRCLE OF LOW. WINDS 20 TO 25 KT IN AREA 23N170W
10N175W 08N170E 08N161E 18N163E 23N175W 23N170W. SEE SEAS BELOW.
.48 HOUR FORECAST LOW 20N165W 1012 MB. WINDS 20 TO 25 KT WITHIN
300 NM NW SEMICIRCLE OF LOW. SEE SEAS BELOW.

.SYNOPSIS AND FORECAST.

.RIDGE 30N140W 21N152W MOVING E SLOWLY

.RIDGE 30N176W 27N170E 23N160E MOVING E SLOWLY.

.WINDS 20 TO 25 KT N OF LINE 30N165E 28N160E.
.24 HOUR FORECAST WINDS 20 TO 25 KT N OF LINE 30N152W
17N140W...AND N OF LINE 30N165E 28N160E.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF LINE 30N158W 22N158W
14S154W 10N148W 10N140W...AND IN AREA 25N170W 23N165W 12N178W
09N160E 17N160E 25N170W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 10 FT IN AREA 30N156W 05N174W 12N163E 21N169E 30N164W.
.24 HOUR FORECAST SEAS 12 TO 14 FT N OF 26N BETWEEN 160W AND 163W.
SEAS 8 TO 12 FT ELSEWHERE N OF 24N BETWEEN 144W AND 168W. SEAS 8
TO 10 FT IN AREA 21N174W 17N166W 03N176E 18N162E 21N174W.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 20N TO 29N BETWEEN 163W
AND 171W. SEAS 8 TO 9 FT FROM 09N TO 19N W OF 180E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ISOLATED MODERATE TSTMS S OF 03S BETWEEN 163W AND 179W.

$$

.FORECASTER POWELL. HONOLULU HI.



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