846
FZPN40 PHFO 212224
HSFNP

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

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 21 2024.
24 HOUR FORECAST VALID 1800 UTC SEP 22 2024.
48 HOUR FORECAST VALID 1800 UTC SEP 23 2024.

.WARNINGS.


.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 10N140W 1010 MB MOVING W SLOWLY. WINDS 20 TO 25 KT WITHIN
60 NM OF LOW. SCATTERED MODERATE TSTMS WITHIN 120 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 11N141W 1007 MB. WINDS 20 TO 25 KT AND
SEAS 8 TO 9 FT WITHIN 150 NM OF LOW.
.48 HOUR FORECAST LOW NEAR 12N145W 1006 MB. WINDS 20 TO 25
KT AND SEAS 8 TO 9 FT FROM 16N TO 11N BETWEEN 143W AND 148W.

.LOW NEAR 07N160W 1011 MB MOVING W 10 KT. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 07N167W 1010 MB.
.48 HOUR FORECAST LOW DISSIPATED.

.TROUGH 17N180E 11N172E 14N160E MOVING S SLOWLY. SCATTERED
MODERATE TSTMS BETWEEN 10N AND 18N W OF 178E.
.24 HOUR FORECAST TROUGH 20N176E 16N175E 11N172E.
.48 HOUR FORECAST TROUGH 17N171E 10N166E 05N164E.

.TROUGH 30N178E 24N176E 19N179E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 21N TO 27N BETWEEN 177W AND 178E.
.24 HOUR FORECAST WEAKENING TROUGH 28N173E 23N172E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N149W 23N150W MOVING W 10 KT.
.24 HOUR FORECAST DISSIPATING TROUGH 29N152W 22N158W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 19N TO 26N BETWEEN 170W
AND 177E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.MONSOON TROUGH 10N140W 09N145W 10N154W 08N160W. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF MONSOON TROUGH.


$$


.FORECASTER TSAMOUS. HONOLULU HI.