338
FZPN40 PHFO 251028
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC FRI JUL 25 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC JUL 25 2025.
24 HOUR FORECAST VALID 0600 UTC JUL 26 2025.
48 HOUR FORECAST VALID 0600 UTC JUL 27 2025.

.WARNINGS.



.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N166W 27N164W 24N164W MOVING N SLOWLY. ISOLATED MODERATE
TSTMS N OF 27N BETWEEN 162W AND 168W.
.24 HOUR FORECAST TROUGH 30N167W 27N167W 26N168W.
.48 HOUR FORECAST TROUGH 29N167W 29N171W 27N174W 27N178W 28N180E.

.TROUGH 24N143W 16N147W 13N148W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 25N143W 21N148W 17N151W 13N153W.
.48 HOUR FORECAST TROUGH 26N145W 24N149W 20N153W.

.TROUGH 17N172E 15N170E 13N169E MOVING W 10 KT. SCATTERED MODERATE
TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW LOW 1012 MB NEAR 11N141W. NE WINDS 20 TO 25
KT FROM 11N TO 16N E OF 142W.
.48 HOUR FORECAST LOW 1010 MB NEAR 12N143W. WINDS 20 TO 25 KT
FROM 12N TO 18N E OF 145W.

.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 17N TO 09N E OF 142W.

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

.SEAS 2.5 M OR LESS OVER REMAINDER OF FORECAST AREA.

.MONSOON TROUGH 11N140W 12N142W 10N146W 10N151W. ITCZ 10N151W
09N156W...AND 06N170W 06N176W 07N177E. SCATTERED MODERATE TSTMS
WITHIN 240 NM OF MONSOON TROUGH AND ITCZ E OF 163W. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF ITCZ BETWEEN 167W AND 171W.

.ISOLATED MODERATE TSTMS N OF 26N BETWEEN 170E AND 162E...AND
FROM 04N TO 18N W OF 178E.


$$


.FORECASTER TSAMOUS. HONOLULU HI.