921
FZPS40 PHFO 011015
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC MON DEC 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 0600 UTC DEC 01 2025.
24 HOUR FORECAST VALID 0600 UTC DEC 02 2025.
48 HOUR FORECAST VALID 0600 UTC DEC 03 2025.

.WARNINGS.

...GALE WARNING...
.TROUGH 25S124W 20S130W 15S140W 15S152W 16S162W 12S174W 06S174E
NEARLY STATIONARY. SCATTERED MODERATE TSTMS WITHIN 270 NM OF
TROUGH.
.24 HOUR FORECAST NEW LOW NEAR 16S150W 1005 MB. TROUGH 25S122W
19S132W 16S141W TO LOW TO 14S163W 11S172W. WINDS 20 TO 25 KT FROM
16S TO 12S BETWEEN 153W AND 145W.
.48 HOUR FORECAST LOW BECOMES COMPLEX WITH MAIN LOW NEAR 18S149W
1000 MB. TROUGH 25S121W 20S132W TO LOW TO 15S155W 13S165W. WINDS
30 TO 40 KT FROM 18S TO 16S BETWEEN 147W AND 144W. WINDS 20 TO 30
KT ELSEWHERE S OF LINE 25S149W 23S146W 15S148W 13S152W 12S148W
15S143W 23S135W 25S138W.

.SYNOPSIS AND FORECAST.

.FRONT 25S161W 24S160E MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT 25S167E 22S160E.
.48 HOUR FORECAST FRONT 25S172E 20S164E 19S160E.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M S OF LINE 25S142W 23S142W 19S124W 20S120W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 06S BETWEEN 176E AND 157W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 18S TO 12S BETWEEN 155W
AND 147W...AND S OF 21S BETWEEN 149W AND 135W.

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

.ISOLATED MODERATE TSTMS S OF 20S BETWEEN 158W AND 149W.


$$

.FORECASTER PIERCE. HONOLULU HI.