214
FZPN40 PHFO 211038
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 21 2024.
24 HOUR FORECAST VALID 0600 UTC SEP 22 2024.
48 HOUR FORECAST VALID 0600 UTC SEP 23 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 14N175E 14N167E 12N160E NEARLY STATIONARY AND ERODING FROM
THE E. SCATTERED MODERATE TSTMS S OF 15N AND N OF LINE 03N160E
04N170E 10N175E 14N175E.
.24 HOUR FORECAST TROUGH 13N168E 12N160E.
.48 HOUR FORECAST TROUGH DISSIPATED WITHIN FORECAST AREA.

.TROUGH 30N179W 24N178W 18N180W MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH BETWEEN 23N AND 27...AND IN AREA
22N174W 16N174W 10N175E 14N175E 22N174W.
.24 HOUR FORECAST WEAKENING TROUGH 28N178E 20N178E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N149W 24N146W MOVING W SLOWLY.
.24 HOUR FORECAST DISSIPATING TROUGH 29N151W 23N150W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.LOW NEAR 07N159W 1010 MB MOVING W 10 KT. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 08N162W 1010 MB.
.48 HOUR FORECAST LOW NEAR 08N167W 1011 MB.

.24 HOUR FORECAST NEW LOW NEAR 12N141W 1009 MB. WINDS 20 TO 25
KT WITHIN 150 NM OF LOW.
.48 HOUR FORECAST LOW NEAR 12N144W 1009 MB. WINDS 20 TO 25
KT FROM 18N TO 13N E OF 148W. SEAS 8 TO 9 FT FROM 16N TO 13N
BETWEEN 146W AND 142W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.MONSOON TROUGH 10N157W 09N141W. ISOLATED MODERATE TSTMS WITHIN
120 NM OF MONSOON TROUGH.

$$

.FORECASTER POWELL. HONOLULU HI.