The High Seas Forecast for the Central North Pacific

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FZPN40 PHFO 302141
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC APR 30 2017.
24 HOUR FORECAST VALID 1800 UTC MAY 01 2017.
48 HOUR FORECAST VALID 1800 UTC MAY 02 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 23N162W 1012 MB MOVING SW 10 KT. FRONT 30N158W TO LOW NEARLY
STATIONARY AND WEAKENING. SECOND FRONT FROM 24N155W 17N160W
14N168W NEARLY STATIONARY AND WEAKENING. WINDS 20 TO 30 KT FROM
21N TO 28N BETWEEN 162W AND 172W. ISOLATED MODERATE TSTMS FROM 18N
TO 24N BETWEEN 149W AND 155W.
.24 HOUR FORECAST LOW 18N167W 1013 MB DISSIPATING. FRONT WEAKENED
TO A TROUGH 30N156W 20N164W TO LOW TO 12N162W. WINDS DIMINISHED
TO 20 KT OR LESS.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 30N158W 23N164W 17N165W.

.FRONT 30N162E 28N160E NEARLY STATIONARY AND DISSIPATING OVER
FORECAST AREA. ISOLATED MODERATE TSTMS WITHIN 60 NM OF FRONT.
.24 HOUR FORECAST FRONT DISSIPATED OVER FORECAST AREA.
.48 HOUR FORECAST NEW FRONT 30N167W 27N178W. NE WINDS 20 TO 25 KT
N OF 28N BETWEEN 166W AND 175W.

.HIGH 29N174W 1023 MB MOVING SW 10 KT. RIDGE FROM HIGH TO 26N170E
24N160E MOVING NW SLOWLY.
.24 HOUR FORECAST HIGH 28N178E 1022 MB DISSIPATING.
.48 HOUR FORECAST HIGH DISSIPATED.

.NE TO E WINDS 20 TO 25 KT FROM 12N TO 20N BETWEEN 165E AND 162W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 14N TO 20N
BETWEEN 164E AND 178E.
.48 HOUR FORECAST NE TO E WINDS WINDS 20 TO 25 KT FROM 14N TO 20N
BETWEEN 165E AND 178E.

.WINDS 20 KT OR LESS REST OF AREA.

.SEAS 8 TO 12 FT N OF 20N BETWEEN 160W AND 170W. SEAS 8 TO 9 FT
FROM 09N TO 19N BETWEEN 163E AND 174W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 19N TO 23N BETWEEN 169W
AND 174W.
.48 HOUR FORECAST SEAS 8 TO 9 FT N OF 29N BETWEEN 165W AND 172W.

.SEAS 8 FT OR LOWER REST OF AREA.

.ISOLATED MODERATE TSTMS S OF 06N BETWEEN 163W AND 176W AND FROM
03N TO 05N BETWEEN 171E AND 180E.

$$

.FORECASTER BURKE. HONOLULU HI.


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