High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 180401
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SAT APR 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC APR 18 2015.
24 HOUR FORECAST VALID 0000 UTC APR 19 2015.
48 HOUR FORECAST VALID 0000 UTC APR 20 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N172E 29N166E 29N160E MOVING E 25 KT.
.24 HOUR FORECAST FRONT 30N172W 28N169E.
.48 HOUR FORECAST FRONT DISSIPATED.

.TROUGH 12N141W 07N144W 02N144W NEARLY STATIONARY. ISOLATED
STRONG TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 06N168E 01N160E NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.ITCZ 08N147W TO 05N170W. SCATTERED STRONG TSTMS WITHIN 150 NM N OF
ITCZ BETWEEN 155W AND 165W.

.RIDGE 30N155W 27N178W NEARLY STATIONARY.

.E WINDS 20 TO 25 KT FROM 22N TO 10N E OF 155W...AND FROM 20N TO
10N W OF 155W.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 23N TO 10N BETWEEN 140W
AND 180E...AND FROM 20N TO 10N W OF 180E.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 22N TO 10N  E OF 170W...
AND FROM 22N TO 13N W OF 170W.

.SEAS 8 TO 10 FT FROM 15N TO 21N E OF 151W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 15N TO 20N E OF 160W.
.48 HOUR FORECAST SEAS 8 TO 11 FT FROM 10N TO 18N BETWEEN 145W AND
170W.

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

.SCATTERED STRONG TSTMS WITHIN 120 NM OF LINE 06N177W 10N168E.

$$
.HONOLULU HI.







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