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000
FZPN40 PHFO 211512
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SUN APR 21 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC APR 21 2024.
24 HOUR FORECAST VALID 1200 UTC APR 22 2024.
48 HOUR FORECAST VALID 1200 UTC APR 23 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N170E TO 26N165E TO 23N160E MOVING E 10 KT.
.24 HOUR FORECAST FRONT FROM 30N175E TO 25N166E.
.48 HOUR FORECAST FRONT WEAKENED TO A TROUGH FROM 30N179E TO
27N172E.

.TROUGH FROM 27N140W TO 21N148W TO 17N151W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH FROM 26N140W TO 21N148W.
.48 HOUR FORECAST TROUGH MOVED E OF AREA.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N E OF 173E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N
BETWEEN 178E AND 150W...AND FROM 06N TO 12N BETWEEN 140W AND 150W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 06N TO 16N
BETWEEN 175E AND 148W...AND FROM 20N TO 24N BETWEEN 149W AND 160W.

.SEAS 8 TO 11 FT N OF 28N W OF 163E.
.24 HOUR FORECAST SEAS 8 TO 11 FT N OF A LINE FROM 30N173E TO
25N166E TO 24N160E.
.48 HOUR FORECAST SEAS 8 TO 9 FT N OF 28N BETWEEN 178W AND 178E.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF
AREA.

.ITCZ FROM 04N140W TO 04N148W TO 02N168W TO W 01N180W. SCATTERED
MODERATE TSTMS WITHIN 330 NM N OF ITCZ BETWEEN 161W AND 171W...AND
WITHIN 90 NM OF ITCZ E OF 157W.

.ISOLATED MODERATE TSTMS S OF 07N BETWEEN 175E AND 169E.



$$

.FORECASTER TSAMOUS. HONOLULU HI.