649
FZPS40 PHFO 232312
HSFSP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC SAT AUG 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 23 2025.
24 HOUR FORECAST VALID 1800 UTC AUG 24 2025.
48 HOUR FORECAST VALID 1800 UTC AUG 25 2025.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 25S130W 21S133W MOVING SE SLOWLY.
.24 HOUR FORECAST TROUGH 25S127W 17S132W.
.48 HOUR FORECAST TROUGH MOVED E OF AREA.
.TROUGH 25S137W 20S151W 14S158W MOVING NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.
.TROUGH 25S167W 20S171W 11S178E 07S167E 07S160E MOVING W SLOWLY
S OF 20S...AND NEARLY STATIONARY AND DISSIPATING ELSEWHERE. WINDS
MAINLY 20 TO 25 KT BETWEEN TROUGH AND 20S W OF 171W...AND S OF 10S
BETWEEN 140W AND 164W. SCATTERED MODERATE TSTMS WITHIN 210 NM OF
TROUGH W OF 170E. ISOLATED MODERATE TSTMS WITHIN 90 NM OF TROUGH
ELSEWHERE.
.24 HOUR FORECAST TROUGH 25S169W 17S173W. WINDS 20 TO 25 KT S OF
10S BETWEEN 140W AND 169W.
.48 HOUR FORECAST TROUGH 25S161W 18S164W. WINDS 20 TO 25 KT FROM
10S TO 20S BETWEEN 140W AND 164W.
.FRONT NEAR 25S160E MOVING E 15 KT. WINDS 20 TO 25 KT S OF 20S W
OF 172W.
.24 HOUR FORECAST FRONT 25S167E 17S164E 14S160E. WINDS 20 TO 25 KT
S OF 20S BETWEEN FRONT AND 180E.
.48 HOUR FORECAST FRONT 25S177E 16S169E 12S167E THENCE TROUGH TO
07S160E. WINDS 20 TO 30 KT S OF 20S BETWEEN FRONT AND 175W.
.24 HOUR FORECAST NEW TROUGH 14S169E 06S161E.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT AND TROUGH DESCRIBED
IMMEDIATELY ABOVE.
.48 HOUR FORECAST NEW TROUGH 25S164E 22S160E. WINDS 20 TO 30 KT
S OF 20S W OF 167E.
.WINDS 20 TO 25 KT FROM 10S TO 18S E OF 125W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 05S TO 18S E OF 140W.
.48 HOUR FORECAST WINDS 20 TO 25 KT S OF 05S E OF 140W.
SEAS MAINLY 2.5 TO 3.0 M S OF 05S
EXCEPT SEAS 2.5 M OR LOWER
S OF 15S BETWEEN 130W AND 150W.
.24 HOUR FORECAST SEAS 2.5 TO 4.0 M S OF LINE 15S140W 08S155W
08S175W...AND S OF LINE 10S180E 25S160E. SEAS 2.5 TO 3.0 M FROM
04S TO 17S E OF 135W.
48 HOUR FORECAST SEAS 2.5 TO 4.0 M S OF 20S W OF 175W
AND S OF
04S E OF 175W.
.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF
FORECAST AREA.
.FORECASTER AHUE. HONOLULU HI.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page