305
FZPN40 PHFO 231530
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON SEP 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SEP 23 2024.
24 HOUR FORECAST VALID 1200 UTC SEP 24 2024.
48 HOUR FORECAST VALID 1200 UTC SEP 25 2024.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 11N143W 1009 MB. TROUGH 13N140W TO LOW TO 09N150W.
TROUGH AND LOW MOVING W 10 KT. WINDS 20 TO 25 KT WITHIN 180 NM N
OF LOW AND TROUGH E OF 147W. SCATTERED MODERATE TSTMS WITHIN 240
NM OF TROUGH AND LOW.
.24 HOUR FORECAST LOW NEAR 11N147W 1010 MB. TROUGH 13N144W TO LOW
TO 08N151W. WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT FROM 12N TO 16N
BETWEEN 142W AND 148W.
.48 HOUR FORECAST LOW NEAR 11N150W 1011 MB. TROUGH 13N145W TO LOW
TO 07N154W. WINDS EASED TO 20 KT OR LESS AND SEAS SUBSIDED TO 8
FT OR LOWER.

.LOW NEAR 10N168W 1009 MB. TROUGH 12N163W TO LOW TO 08N174W.
TROUGH AND LOW MOVING N SLOWLY. SCATTERED MODERATE TSTMS WITHIN
240 NM OF LOW AND TROUGH.
.24 HOUR FORECAST LOW NEAR 12N168W 1008 MB. TROUGH 15N163W TO LOW
TO 09N180W. WINDS 20 TO 30 KT WITHIN 180 NM OF LOW AND TROUGH.
.48 HOUR FORECAST LOW NEAR 14N168W 1009 MB. TROUGH 17N166W TO LOW
TO 09N171E. WINDS 20 TO 25 KT AND SEAS 8 TO 10 FT FROM 13N TO 21N
BETWEEN 161W AND 170W.

.TROUGH 20N170E 10N167E 06N166E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 14N TO 20N BETWEEN 175E AND 160E.
.24 HOUR FORECAST WEAK TROUGH 17N166E 05N163E.
.48 HOUR FORECAST TROUGH 17N162E 08N161W.

.TROUGH 28N166E 22N166E MOVING W 10 KT. SCATTERED MODERATE TSTMS
N OF 22N BETWEEN 175E AND TROUGH.
.24 HOUR FORECAST TROUGH 29N160E 25N160E.
.48 HOUR FORECAST TROUGH MOVED W OF AREA.

.WEAK TROUGH 30N157W 27N158W 25N157W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS FROM 22N TO 26N BETWEEN 156W AND 161W.
.24 HOUR FORECAST WEAK TROUGH 29N160W 25N162W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.OTHERWISE WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 9 FT N OF 28N BETWEEN 180W AND 172E.
.24 HOUR FORECAST SEAS 8 TO 10 FT N OF LINE 30N154W 24N163W
23N172W. SEAS 8 TO 9 FT FORM 20N TO 27N BETWEEN 172W AND 178E.
.48 HOUR FORECAST SEAS 8 TO 9 FT N OF 26N BETWEEN 141W AND 152W.

.OTHERWISE SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ 08N151W 10N161W ISOLATED MODERATE TSTMS WITHIN 120 NM OF
ITCZ.

.ISOLATED MODERATE TSTMS S OF 05N W OF 168E.

$$

.FORECASTER ALMANZA. HONOLULU HI.