High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 201030
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SUN APR 20 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20 2014.
24 HOUR FORECAST VALID 0600 UTC APR 21 2014.
48 HOUR FORECAST VALID 0600 UTC APR 22 2014.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 04N164E 1007 MB MOVING W SLOWLY. TROUGH FROM 04N160E THROUGH
LOW TO 00N169E NEARLY STATIONARY. SCATTERED MODERATE TO STRONG TSTMS
S OF 09N W OF 176E.
.24 HOUR FORECAST LOW 04N161E 1007 MB. TROUGH FROM 04N160E THROUGH
LOW TO 00N168E.
.48 HOUR FORECAST LOW MOVED W OF AREA. TROUGH FROM 04N160E TO
00N168E.

.COLD FRONT FROM 30N162E TO 29N160E MOVING E 20 KT. ALSO...TROUGH
FROM 29N166E TO 25N163E TO 24N160E MOVING E SLOWLY. S TO SW WINDS 20
TO 25 KT WITHIN 210 NM E OF TROUGH N OF 26N. SCATTERED MODERATE
TSTMS N OF 26N BETWEEN 176E AND 164E.
.24 HOUR FORECAST TROUGH ABSORBED BY FRONT FROM 30N175E TO 26N170E
TO 24N160E. S TO SW WINDS 20 TO 25 KT WITHIN 150 NM E OF FRONT N OF
28N.
.48 HOUR FORECAST FRONT FROM 30N177W TO 26N174E TO 24N160E. NE TO E
WINDS 20 TO 25 KT WITHIN 150 NM N OF FRONT W OF 170E.

.WEAKENING FRONT FROM 30N155W TO 28N169W NEARLY STATIONARY.
.24 HOUR FORECAST WEAK FRONT FROM 30N141W TO 28N154W TO 28N163W.
.48 HOUR FORECAST FRONT DISSIPATED.

.TROUGH FROM 07N142W TO 02N147W MOVING W SLOWLY. SCATTERED MODERATE
TO LOCALLY STRONG TSTMS S OF 08N E OF 149W.
.24 HOUR FORECAST TROUGH FROM 07N143W TO 02N148W.
.48 HOUR FORECAST TROUGH FROM 07N148W TO 03N149W.

.NE TO E WINDS 20 TO 25 KT FROM 08N TO 18N BETWEEN 152W AND 180E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 26N E OF
166W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 26N E OF
169W.

.RIDGE FROM 30N173W TO 24N176E TO 21N160E MOVING E SLOWLY...AND
SLOWLY ERODING FROM THE W.

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

.SEAS 8 TO 9 FT FROM 05N TO 19N E OF 170E.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 06N TO 25N E OF 160W...FROM
06N TO 23N BETWEEN 160W AND 170W...AND FROM 05N TO 13N BETWEEN 170W
AND 171E.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 07N TO 25N E OF 164W...FROM
08N TO 22N BETWEEN 164W AND 172W...AND N OF 25N W OF 177W.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ FROM 05N140W TO 05N161W TO 07N170W TO 05N176E. SCATTERED
MODERATE TO STRONG TSTMS S OF 09N BETWEEN 169W AND 176E. ISOLATED
MODERATE TSTMS ELSEWHERE WITHIN 150 NM OF ITCZ E OF 169W.

$$
.FORECASTER HOUSTON. HONOLULU HI.






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