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National Weather Service Marine Forecast FZPN40 PHFO

FZPN40 PHFO 300322
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 30 2017.
24 HOUR FORECAST VALID 0000 UTC MAY 01 2017.
48 HOUR FORECAST VALID 0000 UTC MAY 02 2017.

.WARNINGS.

GALE WARNING

.LOW 28N159W 1009 MB MOVING SSW 10 KT. FRONT 30N157W 25N154W 18N160W
15N169W MOVING SE SLOWLY. WINDS 30 TO 35 KT WITHIN 150 NM NW QUADRANT
OF LOW. WINDS 20 TO 30 KT ELSEWHERE WITHIN 300 NM NW SEMICIRCLE OF
LOW AND E OF LINE 30N154W 20N142W. SCATTERED MODERATE TSTMS WITHIN
120 NM OF FRONT N OF 20N.
.24 HOUR FORECAST LOW 22N163W 1012 MB. TROUGH 30N159W TO LOW TO
15N160W. WINDS 20 TO 30 KT WITHIN 300 NM N SEMICIRCLE OF LOW.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 30N160W 20N162W 18N164W.

.SYNOPSIS AND FORECAST.

.FRONT JUST W OF AREA MOVING E 15 KT. WINDS 20 TO 25 KT N OF 28N E
OF 162E.
.24 HOUR FORECAST FRONT NEAR 30N162E 29N160E. WINDS DIMINISHED TO
20 KT OR LESS.
.48 HOUR FORECAST FRONT 30N163E 28N160E.

.HIGH 30N175W 1025 MB MOVING WSW SLOWLY. RIDGE FROM HIGH TO
26N170E 24N160E.
.24 HOUR FORECAST HIGH 29N179E 1023 MB DISSIPATING.
.48 HOUR FORECAST HIGH DISSIPATED.

.NE TO E WINDS 20 TO 25 KT IN AREA BOUNDED BY 20N170W 15N170W
08N178E 08N160E 20N160E 20N170W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 07N TO 16N E OF 174E.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 14N TO 20N W OF 175E.

.WINDS 20 KT OR LESS REST OF AREA.

.SEAS 12 TO 15 FT N OF 27N BETWEEN 158W AND 163W. SEAS 8 TO 12 FT
ELSEWHERE N OF 24N BETWEEN 145W AND 167W. SEAS 8 TO 10 FT FROM 08N
TO 22N BETWEEN 168W AND 175E.
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF 20N BETWEEN 160W AND 170W.
SEAS 8 TO 10 FT FROM 09N TO 20N W OF 178W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 20N TO 26N BETWEEN 165W AND
170W AND FROM 10N TO 15N W OF 175E.

.SEAS 8 FT OR LOWER REST OF AREA.

.SCATTERED MODERATE TO STRONG TSTMS S OF 10N W OF 172E AND S OF
04N BETWEEN 177E AND 172W.



.FORECASTER BURKE. HONOLULU HI.