High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 211055
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 21 2015.
24 HOUR FORECAST VALID 0600 UTC APR 22 2015.
48 HOUR FORECAST VALID 0600 UTC APR 23 2015.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 04N179E 1007 MB MOVING W SLOWLY. SCATTERED MODERATE TO STRONG
TSTMS WITHIN 90 NM OF A LINE FROM FROM 08N178E TO 05N177W TO
05N175W. ISOLATED MODERATE TSTMS ELSEWHERE S OF A LINE FROM 09N176E
TO 10N179E TO 07N174W.
.24 HOUR FORECAST LOW 05N177E 1007 MB.
.48 HOUR FORECAST LOW 05N176E 1007 MB.

.FRONT FROM 30N177W TO 27N178E TO 24N167E MOVING E 25 KT. N TO NE
WINDS 20 TO 25 KT N OF FRONT BETWEEN 170E AND 177E.
.24 HOUR FORECAST FRONT FROM 30N168W TO 24N172W TO 20N173W.
ASSOCIATED WINDS EASED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 30N167W TO 26N167W TO 19N171W. N TO NE
WINDS 20 TO 25 KT N OF 24N BETWEEN 174W AND 178E. S TO SE WINDS
20 TO 25 KT N OF 26N BETWEEN 154W AND 163W.

.TROUGH FROM 05N166E TO 07N169E TO 10N171E MOVING W 10 KT. ISOLATED
MODERATE TO STRONG TSTMS S OF 14N W OF 176E.
.24 HOUR FORECAST TROUGH FROM 06N160E TO 07N164E TO 10N168E.
.48 HOUR FORECAST TROUGH FROM 09N160E TO 11N163E.

.NE TO E WINDS 20 TO 25 KT E OF LINE FROM 08N170W TO 14N170W TO
24N162W...AND W OF 168E BETWEEN 10N AND 23N.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 09N TO 26N E OF 160W. NE TO
E WINDS 20 TO 25 KT W OF 170E BETWEEN 12N AND 24N...AND FROM 20N TO
26N BETWEEN 170E AND 180E.
.48 HOUR FORECAST WINDS 20 TO 25 KT E OF 160W FROM 08N TO 26N. NE TO
E WINDS 20 TO 25 KT W OF 175E BETWEEN 11N TO 22N.

.RIDGE FROM 30N168W TO 27N175W MOVING NE 15 KT.

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

.SEAS 8 TO 12 FT E OF A LINE FROM 05N168W TO 09N178E TO 18N178W TO
24N170W. SEAS 8 TO 10 FT W OF A LINE FROM 11N175E TO 22N162E.
.24 HOUR FORECAST SEAS 8 TO 11 FT E OF A LINE FROM 05N170W TO
14N175W TO 26N161W. SEAS 8 TO 10 FT N OF 26N BETWEEN 175W AND
175E...FROM 21N TO 24N BETWEEN 178W AND 164E...AND FROM 12N TO 24N
W OF 170E.
.48 HOUR FORECAST SEAS 8 TO 11 FT IN AREA BOUNDED BY 30N166W 30N157W
22N140W 07N140W 09N164W 12N169W 22N158W 24N165W 30N166W...AND N OF
25N BETWEEN 173W AND 178E. SEAS 8 TO 10 FT W OF 173E BETWEEN 12N AND
23N. SEAS 8 TO 9 FT FROM 17N TO 25N BETWEEN 178W AND 173E.

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

.ITCZ FROM 05N140W TO 04N154W TO 04N160W TO 01N167W. ISOLATED
MODERATE TO STRONG TSTMS FROM 02N TO 12N E OF 154W...AND S OF 11N
BETWEEN 154W AND 174W.

$$

.HONOLULU HI.





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