958
FZPN40 PHFO 212207
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC MON SEP 21 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 180W

SYNOPSIS VALID 1800 UTC SEP 21 2026.
24 HOUR FORECAST VALID 1800 UTC SEP 22 2026.
48 HOUR FORECAST VALID 1800 UTC SEP 23 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12N145W 1008 MB MOVING W 15 KT. WINDS 20 TO 25 KT FROM 15N
TO 23N E OF 150W. ISOLATED MODERATE TSTMS WITHIN 210 NM OF LOW.
.24 HOUR FORECAST LOW 15N151W 1007 MB. WINDS 20 TO 25 KT FROM 15N
TO 21N BETWEEN 144W AND 154W.
.48 HOUR FORECAST LOW 15N155W 1007 MB. WINDS 20 TO 25 KT FROM 15N
TO 21N BETWEEN 151W AND 157W.

.TROUGH 27N149W 22N149W 16N148W MOVING W 15 KT.
.24 HOUR FORECAST TROUGH 25N156W 22N157W 18N156W.
.48 HOUR FORECAST TROUGH 28N159W 23N160W 21N160W.

.TROUGH 29N173W 25N179W 22N180W NW SLOWLY. SCATTERED MODERATE
TSTMS WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 30N175W 28N180W.
.48 HOUR FORECAST TROUGH W OF AREA.

.SEAS 2.5 TO 4 M FROM 14N TO 24N E OF 150W. SEAS 2.5 TO 3 M FROM
14N TO 19N BETWEEN 150W AND 160W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M FROM 14N TO 26N E OF 155W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M FROM 14N TO 24N BETWEEN 144W
AND 160W.

.WINDS 20 KT OR LESS AND SEAS BELOW 2.5 M OVER THE REMAINDER OF
FORECAST AREA.

.MONSOON TROUGH 09N180W 08N175W 11N164W 11N155W 09N150W 09N140W.
SCATTERED MODERATE TSTMS FROM 02N TO TROUGH E OF 155W.


$$

.FORECASTER ALMANZA. HONOLULU HI.