551
FZPS40 PHFO 211519
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI FEB 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FEB 21 2025.
24 HOUR FORECAST VALID 1200 UTC FEB 22 2025.
48 HOUR FORECAST VALID 1200 UTC FEB 23 2025.

.WARNINGS.

...GALE WARNING...

.COMPLEX LOWS AND TROUGH. FIRST LOW NEAR 19S166W 1000 MB MOVING SE
10 KT... TROPICAL DEVELOPMENT IS LIKELY WITH THIS SYSTEM. TROUGH
FROM 25S154W TO FIRST LOW TO 15S173W TO SECOND LOW 13S179W 1004 MB
TO 14S160E. TROUGH MOVING SW SLOWLY E OF 178E AND MOVING N SLOWLY
ELSEWHERE. WINDS 30 TO 40 KT WITHIN 210 NM OF FIRST LOW...AND NE
OF TROUGH BETWEEN 162W AND 176W. WINDS 20 TO 30 KT ELSEWHERE S OF
LINE 25S157W 09S167W 07S176E...AND FROM 13S TO 07S W OF 180E.
SCATTERED MODERATE TO STRONG TSTMS WITHIN 120 NM OF FIRST LOW...AND
WITHIN 240 NM N OF TROUGH BETWEEN 171W AND 170E. ISOLATED MODERATE
TSTMS WITHIN 300 NM N OF TROUGH W OF 170E.
.24 HOUR FORECAST FIRST LOW NEAR 23S164W 996 MB. SECOND LOW NEAR
14S177W 999 MB...TROPICAL DEVELOPMENT IS POSSIBLE WITH THIS LOW.
TROUGH FROM 25S158W TO FIRST LOW TO SECOND LOW TO 14S160E. WINDS
30 TO 40 KT WITHIN 150 NM OF FIRST AND SECOND LOWS. WINDS 20 TO 30
KT ELSEWHERE WITHIN 270 NM N OF TROUGH...AND S OF 18S W OF 168W.
.48 HOUR FORECAST FIRST LOW MOVED S OF AREA. SECOND LOW NEAR
17S178W 995 MB...TROPICAL DEVELOPMENT IS POSSIBLE WITH THIS LOW.
TROUGH FROM 25S165W TO  SECOND LOW TO NEW THIRD LOW
13S172E 1003MB TO 13S160E. WINDS 30 TO 40 KT WITHIN 180 NM OF
SECOND LOW...AND WITHIN 90 NM NE OF THIRD LOW. WINDS 20 TO 30 KT
ELSEWHERE WITHIN 270 NM N AND NE OF TROUGH...AND S OF 19S W OF
160W.

.SYNOPSIS AND FORECAST.

.LOW NEAR 19S141W 1012 MB MOVING WSW 10 KT. TROUGH FROM 25S140W TO
LOW TO 17S141W. WINDS 20 TO 25 KT S OF 19S BETWEEN 135W AND 140W.
ISOLATED MODERATE TSTMS WITHIN 60 NM OF LOW.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 25S143W TO 20S142W.
WINDS 20 TO 25 KT WITHIN 90 NM E OF LOW S OF 22S.
.48 HOUR FORECAST LOW AND TROUGH DISSIPATED. WINDS DECREASED TO 20
KT OR LESS.

.TROUGH 25S166E 21S163E MOVING W SLOWLY. WINDS 20 TO 25 KT S OF
19S W OF 178E.
.24 HOUR FORECAST TROUGH DISSIPATED.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 16 FT FROM 23S TO 14S BETWEEN 162W AND 170W. SEAS 8 TO
12 FT ELSEWHERE S OF LINE 25S156W 12S160W 08S171W 07S175E. SEAS 8
TO 10 FT S OF 21S BETWEEN 134W AND 138W.
.24 HOUR FORECAST SEAS 12 TO 18 FT WITHIN 120 NM NE OF A LINE
25S164W 13S180E. SEAS 8 TO 12 FT ELSEWHERE S OF A LINE 25S154W
08S167W 08S173E.
.48 HOUR FORECAST SEAS 18 TO 21 FT FROM 18S TO 14S BETWEEN 175W
AND 180W. SEAS 12 TO 18 FT ELSEWHERE WITHIN 150 NM N OF A LINE
19S175W 13S171E. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S156W
08S175W 07S170E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

ISOLATED MODERATE TSTMS FROM 15S TO 09S BETWEEN 138W AND 145W.


$$

.FORECASTER TSAMOUS. HONOLULU HI.