High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 190430
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN APR 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 19 2015.
24 HOUR FORECAST VALID 0000 UTC APR 20 2015.
48 HOUR FORECAST VALID 0000 UTC APR 21 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 06N163E 1008 MB MOVING W SLOWLY. SCATTERED STRONG TSTMS FROM
180 NM TO 480 NM OF LOW E QUADRANT. ADDITIONAL TSTMS INCLUDED WITH
ITCZ BELOW.
.24 HOUR FORECAST LOW 05N160E 1009 MB.
.48 HOUR FORECAST LOW DISSIPATED.

.COLD FRONT 30N173W 28N179W MOVING NE 10 KT.
.24 HOUR FORECAST FRONT DISSIPATED.

.24 HOUR FORECAST FRONT NEAR 30N162E.
.48 HOUR FORECAST FRONT 30N177E 27N171E.

.ITCZ 07N156W 04N167W 07N179W 04N170E. SCATTERED STRONG WITHIN 150
NM OF ITCZ BETWEEN 158W AND 176W.

.RIDGE 30N168E 28N164E.
.24 HOUR FORECAST RIDGE 30N177W 28N175E.
.48 HOUR FORECAST RIDGE 30N159W 25N172W.

.RIDGE 30N158W 28N169W.
.24 HOUR FORECAST RIDGE DISSIPATED.

.WINDS 20 TO 30 KT AND SEAS 8 TO 10 FT FROM 16N TO 09N BETWEEN 171W
AND 160E AND ALSO FROM 21N TO 12N BETWEEN 141W AND 162W.
.24 HOUR FORECAST WINDS 20 TO 30 KT AND SEAS 8 TO 11 FT FROM 21N TO
09N BETWEEN 141W AND 164E.
.48 HOUR FORECAST WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT FROM 26N TO
07N E OF 170W AND ALSO FROM 23N TO 09N W OF 170W.

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

.ISOLATED MODERATE TSTMS S OF 09N E OF 150W.

$$
.HONOLULU HI.





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