High Seas Forecast
Issued by NWS

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028
FZPS40 PHFO 100321
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC FRI OCT 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC OCT 10 2025.
24 HOUR FORECAST VALID 0000 UTC OCT 11 2025.
48 HOUR FORECAST VALID 0000 UTC OCT 12 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 17S120W 14S132W 14S143W MOVING ENE SLOWLY. SE WINDS 20 TO
25 KT S OF A LINE 25S122W 20S135W 16S150W 13S130W 17S120W.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 16S120W 12S126W. WINDS
EASED TO 20 KT OR LESS.
.48 HOUR FORECAST TROUGH DISSIPATED.

.FRONT 25S154W 20S163W THENCE TROUGH 16S173W 11S177W 05S160E.
FRONT MOVING E 10 KT S OF 23S AND NEARLY STATIONARY ELSEWHERE.
TROUGH MOVING SW 10 KT N OF 15S AND MOVING E 10 KT ELSEWHERE. E TO
SE WINDS 20 TO 25 KT S OF A LINE 25S163W 19S166W 10S179W 08S172E
09S160E. SCATTERED MODERATE TO STRONG TSTMS FROM 13S TO 05S W OF
176E AND WITHIN 180 NM OF TROUGH ELSEWHERE.
.24 HOUR FORECAST FRONT 25S148W 20S154W. TROUGH DETACHED 15S177W
10S171E 07S161E. WINDS EASED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT 25S141W 20S145W. TROUGH MOVED W OF AREA.

.TROUGH 09S157W 07S166W MOVING W 10 KT. ISOLATED MODERATE TSTMS
FROM 13S TO 07S BETWEEN 169W AND 156W.
.24 HOUR FORECAST TROUGH 09S167W 08S177W.
.48 HOUR FORECAST TROUGH 10S164W 06S179E.

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

.SEAS 4 TO 5 M S OF 19S E OF 128W. SEAS 2.5 TO 4 M ELSEWHERE S OF
A LINE 25S144W 13S169W 05S152W 11S132W 03S131W 03S120W. SEAS 2.5
TO 4 M S OF 07S W OF 171W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M S OF A LINE 25S170E 13S168E
18S160E 10S160E 09S177E 19S176E 18S178W 09S169W 05S152W 15S150W
18S161W 25S152W...AND S OF 08S E OF 140W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M S OF A LINE 25S166W 23S173E
19S171E 18S178W 11S177W 13S164W 25S143W.

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

.ISOLATED MODERATE TSTMS FROM 11S TO 09S BETWEEN 173W AND 170W.

$$

.FORECASTER TROTTER. HONOLULU HI.