High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 210435
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC TUE APR 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 21 2015.
24 HOUR FORECAST VALID 0000 UTC APR 22 2015.
48 HOUR FORECAST VALID 0000 UTC APR 23 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N178E TO 25N160E MOVING E 35 KT.
.24 HOUR FORECAST FRONT FROM 30N169W TO 23N175W TO 20N180E.
.48 HOUR FORECAST NEW LOW 25N167W 1011 MB. FRONTS FROM 30N167W TO
LOW...AND FROM LOW TO 21N172W TO 17N180W. NW TO N WINDS 20 TO 25 KT
OVER FORECAST WATERS N OF 28N BETWEEN 173W AND 178W. SEE BELOW FOR
WINDS E OF LOW AND FRONTS.

.TROUGH FROM 12N171E TO 07N170E TO 04N168E MOVING W 10 KT. ISOLATED
MODERATE TO LOCALLY STRONG TSTMS W OF LINE FROM 12N174E TO 01N169E.
.24 HOUR FORECAST TROUGH FROM 12N167E TO 04N162E.
.48 HOUR FORECAST NEW LOW 10N165E 1009 MB.

.NE TO E WINDS 20 TO 25 KT E OF LINE FROM 23N157W TO 12N167W TO
07N163W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 24N E OF
160W...AND W OF LINE FROM 24N173E TO 22N177E TO 11N165E.
.48 HOUR FORECAST E TO SE WINDS 20 TO 30 KT N OF LINE FROM 20N150W
TO 20N159W TO 26N163W. NE TO E WINDS 20 TO 25 KT FROM 09N TO 24N E
OF 150W. E WINDS 20 TO 25 KT FROM 10N TO 20N BETWEEN 150W AND
159W...AND FROM 13N TO 22N W OF 172E.

.RIDGE FROM 30N172W TO 28N179E MOVING SE 10 KT AND ERODING FROM THE
W.

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

.SEAS 8 TO 12 FT IN AREA BETWEEN LINE FROM 19N140W TO 25N160W TO
15N179W...AND LINE FROM 07N140W TO 05N162W TO 10N179W. SEAS 8 TO 9
FT FROM 11N TO 15N W OF 176E.
.24 HOUR FORECAST SEAS 8 TO 11 FT BOUNDED BY 27N160W TO 18N140W TO
08N140W TO 05N169W TO 14N175W TO 27N160W. SEAS 8 TO 10 FT N OF 27N
BETWEEN 175E AND 177W. SEAS 8 TO 9 FT FROM 11N TO 20N W OF 168E...
AND FROM 22N TO 25N BETWEEN 173E AND 177E.
.48 HOUR FORECAST SEAS 8 TO 10 FT BOUNDED BY 30N158W TO 22N140W TO
07N140W TO 07N158W TO 12N170W TO 30N165W TO 30N158W...AND W OF LINE
FROM 23N174E TO 14N174E TO 11N166E.

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

.ISOLATED MODERATE TO LOCALLY STRONG TSTMS FROM 04N TO 08N BETWEEN
177E AND 173W.

.ITCZ FROM 06N140W TO 05N150W TO 05N157W TO 01N170W. ISOLATED
MODERATE TO LOCALLY STRONG TSTMS BETWEEN ITCZ AND 10N...AND WITHIN
135 NM S OF ITCZ E OF 164W.

$$

.FORECASTER KINEL. HONOLULU HI.





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