541
FZPN40 PHFO 172141
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE SEP 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE OFFSHORE AND HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP


SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1800 UTC SEP 17 2024.
24 HOUR FORECAST VALID 1800 UTC SEP 18 2024.
48 HOUR FORECAST VALID 1800 UTC SEP 19 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 19N160E TO 27N160E MOVING NW 15 KT. SCATTERED
MODERATE TSTMS OVER FORECAST FROM 27N TO 17N W OF 165E.
.24 HOUR FORECAST TROUGH DISSIPATED W OF FORECAST AREA.

.48 HOUR FORECAST NEW TROUGH FROM 07N170E TO 10N179W TO 14N170W.
ASSOCIATED WINDS INCLUDED BELOW.

.WINDS E TO NE 20 TO 25 KT FROM 18N TO 10N BETWEEN 179E AND 140W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 18N TO 10N
BETWEEN 170E AND 160W.
.48 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 16N TO 10N
BETWEEN 163E AND 170W. ALSO WINDS E TO SE 20 TO 25 KT FROM 08N TO
00N BETWEEN 175W AND 165W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 10 FT FROM 18N TO 00N BETWEEN 165W AND 150W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 16N TO 00N BETWEEN 173W AND
163W.
.48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 08N140W TO 10N148W TO 09N157W TO 06N164W TO 06N170W TO
08N178W TO 06N174E TO 09N167E. SCATTERED MODERATE TO STRONG TSTMS
WITHIN 180 NM N OF ITCZ. ISOLATED MODERATE TO STRONG TSTMS WITHIN
90 NM S OF ITCZ.

.OTHERWISE AND ELSEWHERE ISOLATED MODERATE TSTMS FROM 30N TO 25N
BETWEEN 175W AND 165W...AND ALSO FROM 15N TO 10N BETWEEN 175E AND
170W.

$$

.FORECASTER BEDAL. HONOLULU HI.