High Seas Forecast
Issued by NWS

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FZPN40 PHFO 230303
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 23 2024.
24 HOUR FORECAST VALID 0000 UTC SEP 24 2024.
48 HOUR FORECAST VALID 0000 UTC SEP 25 2024.

.WARNINGS.



.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 11N143W 1008 MB MOVING W SLOWLY. SCATTERED MODERATE
TSTMS WITHIN 300 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 11N144W 1008 MB. WINDS 20 TO 25 KT
FROM 12N TO 16N BETWEEN 145W AND 141W. SEAS 8 TO 10 FT FROM 12N
TO 16N BETWEEN 147W AND 141W.
.48 HOUR FORECAST LOW NEAR 12N147W 1007 MB. WINDS 20 TO 30 KT
FROM 12N TO 19N FROM 149W TO 143W. SEAS 8 TO 10 FT FROM 14N TO
18N BETWEEN 150W TO 144W.

.LOW NEAR 07N170W 1008 MB MOVING NW SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 240 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 11N167W. WINDS 20 TO 30 KT WITHIN
240 NM OF LOW.
.48 HOUR FORECAST LOW NEAR 10N175W. WINDS 20 TO 30 KT AND
SEAS 8 TO 10 FT WITHIN 300 NM OF LOW.

.TROUGH 26N176E 20N171E 13S171E MOVING W SLOWLY. SCATTERED TO
NUMEROUS MODERATE TSTMS WITHIN 210 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 18N TO 28N BETWEEN
175E AND 170W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 10N TO 27N BETWEEN
180W AND 170W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.24 HOUR FORECAST SEAS 8 TO 10 FT N OF 25N BETWEEN 176E AND
170W.
.48 HOUR FORECAST SEAS SUBSIDING TO LESS THAN 8 FT.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.MONSOON TROUGH 08N170W 11N161W 09N151W 12N140W.



$$

.FORECASTER PECHACEK. HONOLULU HI.