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000
FZPN40 PHFO 180315
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC THU APR 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC APR 18 2024.
24 HOUR FORECAST VALID 0000 UTC APR 19 2024.
48 HOUR FORECAST VALID 0000 UTC APR 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N142W TO 23N143W TO 22N146W TO 19N150W...THENCE
TROUGH TO 15N156W TO 14N164W MOVING E SLOWLY N OF 19N...AND NEARLY
STATIONARY ELSEWHERE. S WINDS 20 TO 25 KT E OF FRONT N OF 28N.
.24 HOUR FORECAST FRONT FROM 28N140W TO 23N144W...THENCE TROUGH TO
18N150W. WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT FROM 26N140W TO 18N147W. TROUGH DISSIPATED.

.FRONT FROM 30N169E TO 26N167E TO 23N164E TO 21N160E MOVING E
SLOWLY N OF 23N...AND NEARLY STATIONARY ELSEWHERE. SE TO S WINDS
20 TO 25 KT N OF 26N BETWEEN FRONT AND 177E.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N171E TO 23N164E.
WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST TROUGH MOVED N OF AREA.

.24 HOUR FORECAST NEW TROUGH FROM 09N142W TO 03N146W.
.48 HOUR FORECAST TROUGH FROM 06N150W TO 04N153W.

.48 HOUR FORECAST NEW FRONT NEAR 30N160E. S WINDS 20 TO 25 KT
N OF 26N W OF 167E.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N BETWEEN 164W AND 170E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N W OF
164W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 15N E OF
175E.

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

.SEAS 8 TO 9 FT FROM 05N TO 14N BETWEEN 171W AND 175E.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 05N TO 12N BETWEEN 175W
AND 173E.
.48 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.

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

.ITCZ FROM 07N140W TO 07N151W TO 04N167W TO 04N177E TO 02N172E.
ISOLATED MODERATE TSTMS WITHIN 120 NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 05N TO 10N W OF 164E.

$$

.FORECASTER AHUE. HONOLULU HI.