The High Seas Forecast for the Central North Pacific

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FZPN40 PHFO 312233
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE MAR 31 2015

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 31 2015.
24 HOUR FORECAST VALID 1800 UTC APR 01 2015.
48 HOUR FORECAST VALID 1800 UTC APR 02 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 02N161E 1007 MB MOVING NW SLOWLY. WINDS 20 TO 25 KT WITHIN 180
NM N AND NE QUADRANTS OF LOW. SCATTERED MODERATE TO STRONG TSTMS S
OF 08N W OF 180E.
.24 HOUR FORECAST LOW...POSSIBLE DEVELOPING TROPICAL CYCLONE...
06N160E 1003 MB. WINDS 20 TO 30 KT WITHIN 240 NM N AND NE QUADRANTS
OF LOW.
.48 HOUR FORECAST LOW...POSSIBLE DEVELOPING TROPICAL CYCLONE...
MOVED W OF FORECAST AREA. WINDS DIMINISHED TO 20 KT OR LESS OVER
FORECAST WATERS.

.FRONT 30N168E TO 26N160E MOVING E 25 KT. SW WINDS 20 TO 25 KT
WITHIN 90 NM E OF FRONT N OF 28N. ISOLATED MODERATE TSTMS WITHIN 300
NM OF E AND SE OF FRONT E OF 165E.
.24 HOUR FORECAST FRONT 30N180E TO 26N176E TO 25N171E. WINDS 20 TO
25 KT N OF 28N BETWEEN 175W AND 176E.
.48 HOUR FORECAST DISSIPATING FRONT 30N173W TO 25N172W TO 22N176W.
WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH 29N156W TO 20N165W MOVING E SLOWLY. WINDS 20 TO 25 KT WITHIN
150 NM OF TROUGH N OF 22N. ISOLATED MODERATE TSTMS WITHIN 240 NM E
OF TROUGH N OF 23N.
.24 HOUR FORECAST TROUGH 29N154W TO 21N160W. WINDS 20 TO 25 KT N OF
28N WITHIN 420 NM W OF TROUGH N OF 28N.
.48 HOUR FORECAST TROUGH DISSIPATED. WINDS DIMINISHED TO 20 KT OR
LESS.

.TROUGH 15N149W TO 10N150W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 16N152W TO 10N153W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW FRONT 30N165E TO 27N160E. WIND 20 TO 30 KT N
OF 27N W OF 168E.

.48 HOUR FORECAST NEW TROUGH 28N166W TO 21N172W.

.E WINDS 20 TO 25 KT FROM 15N TO 18N E OF 150W...AND FROM 08N TO 15N
W OF 176E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 10N TO 18N W OF 170E...
AND FROM 18N TO 24N E OF 150W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT N OF 17N E OF 160W.

.RIDGE 30N179W TO 25N167E MOVING E 25 KT AND ERODING FROM THE W.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 TO 10 FT FROM 06N TO 16N W OF 177E.
.24 HOUR FORECAST SEAS 8 TO 12 FT FROM 07N TO 16N W OF 165E.
.48 HOUR FORECAST SEAS 8 TO 11 FT N OF 28N W OF 165E. SEAS 8 TO 9 FT
FROM 10N TO 14N W OF 161E.

.SEAS 8 FT OR LESS OVER REMAINDER OF FORECAST AREA.

$$
.HONOLULU HI.



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