885
FZPS40 PHFO 091516
HSFSP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SUN MAR 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAR 09 2025.
24 HOUR FORECAST VALID 1200 UTC MAR 10 2025.
48 HOUR FORECAST VALID 1200 UTC MAR 11 2025.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.LOW 20S174W 1008 MB MOVING S 10 KT. TROUGH 25S172W TO LOW TO
14S177E 13S165E 08S160E MOVING SW SLOWLY E OF LOW...AND NE SLOWLY
ELSEWHERE. WINDS 20 TO 25 KT S OF 16S W OF 170E. SCATTERED
MODERATE TSTMS FROM 20S TO TROUGH BETWEEN 164E AND 175E. ISOLATED
MODERATE TSTMS ELSEWHERE WITHIN 60 NM OF TROUGH AND LOW.
.24 HOUR FORECAST LOW MOVED S OF AREA. TROUGH 25S172W 15S180W
12S172E 12S160E. WINDS 20 TO 25 KT WITHIN 90 NM E OF TROUGH.
.48 HOUR FORECAST TROUGH 25S170W TO LOW TO 14S180E 13S170E 14S160E.
WINDS DIMINISHED TO 20 KT OR LESS.
.TROUGH 18S168W 14S170W 13S175W 10S177W MOVING SW SLOWLY. WINDS 20
TO 25 KT WITHIN 60 NM OF TROUGH. ISOLATED MODERATE TSTMS WITHIN 150
NM OF TROUGH.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED DIRECTLY ABOVE.
.FRONT 25S123W 22S132W MOVING NE 10 KT.
.24 HOUR FORECAST WEAK FRONT 22S120W 19S131W 20S140W.
.48 HOUR FORECAST WEAK FRONT 21S120W 18S133W.
.TROUGH 25S154W 18S151W MOVING W SLOWLY. SCATTERED MODERATE TSTMS
FROM 19S TO 12S BETWEEN 152W AND 146W. ISOLATED MODERATE TSTMS FROM
20S TO 10S BETWEEN 155W AND 143W.
.24 HOUR FORECAST TROUGH DISSIPATED.
.TROUGH 05S120W 05S133W 02S141W 05S153W MOVING S SLOWLY. ISOLATED
MODERATE TSTMS FROM 10S TO TROUGH W OF 130W.
.24 HOUR FORECAST TROUGH 04S120W 07S130W 04S141W 06S152W.
.48 HOUR FORECAST TROUGH 02S120W 07S134W 04S147W.
.24 HOUR FORECAST SEAS 8 TO 9 FT S OF 21S E OF 135W.
.48 HOUR FORECAST SEAS DIMINISHED TO 8 FT OR LESS.
.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER ENTIRE FORECAST AREA.
.FORECASTER SHIGESATO. HONOLULU HI.
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