The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 10/24/2024 08:56:19 AM UTC
                        
687
FZPN40 PHFO 232256
HSFNP

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SECURITE

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

SYNOPSIS VALID 1800 UTC OCT 23 2024.
24 HOUR FORECAST VALID 1800 UTC OCT 24 2024.
48 HOUR FORECAST VALID 1800 UTC OCT 25 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 30N140W 25N144W 24N151W 26N160W 30N164W. FRONT E OF
150W MOVING E SLOWLY. FRONT W OF 150W NEARLY STATIONARY.
ISOLATED MODERATE TSTMS N OF 26N BETWEEN 163W AND 158W.
.24 HOUR FORECAST FRONT 28N140W 24N145W 23N154W 30N164W.
.48 HOUR FORECAST FRONT 25N140W 23N152W 27N164W 30N165W.

.FRONT 30N164W 24N170W 21N179E NEARLY STATIONARY. SCATTERED
MODERATE TSTMS N OF 28N BETWEEN 166W AND 164W.
.24 HOUR FORECAST FRONT 30N165W 24N171W 20N178E 20N172E.
.48 HOUR FORECAST FRONT DISSIPATES.

.LOW NEAR 27N178W 1010 MB. TROUGH FROM 30N175W TO LOW TO
24N179E TO 24N176E. LOW AND TROUGH NEARLY STATIONARY.
.24 HOUR FORECAST LOW 27N177W 1010 MB. TROUGH FROM 30N176W
TO LOW TO 25N176E.
.48 HOUR FORECAST LOW 23N177E 1005 MB. TROUGH FROM 24N177W
TO LOW TO 17N173E TO 15N167E. WINDS 20 TO 30 KT WITHIN 120
NM OF LOW.

.TROUGH 21N169E 19N160E MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 23N TO 16N W OF 172E.
.24 HOUR FORECAST TROUGH 20N171E 20N160E.
.48 HOUR FORECAST TROUGH 20N169E 17N160E.

.TROUGH 12N172E 09N167E 04N164E MOVING NW 10 KT. ISOLATED
MODERATE TSTMS WITHIN 210 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH 14N167E 09N161E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.WINDS 20 TO 25 KT N OF LINE 30N149W 27N155W 30N163W...
N OF 27N BETWEEN 169E AND 178E...AND N OF 21N W OF 170E.
.24 HOUR FORECAST WINDS 20 TO 25 KT N OF 22N W OF 169E.
.48 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST
AREA.

.SEAS 8 TO 12 FT N OF LINE 29N140W 25N151W 26N178W 20N171E
20N160E.
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF LINE 29N140W 25N146W
28N153W 26N161W 25N175W 20N173E 20N160E.
.48 HOUR FORECAST SEAS 8 TO 10 FT N OF LINE 30N174W 18N172E
18N160E.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST
AREA.

.ITCZ 10N140W 08N156W 11N166W 11N176W. ISOLATED MODERATE
TSTMS WITHIN 180 NM OF ITCZ W OF 144W.

$$

.FORECASTER TROTTER. HONOLULU HI.