000
FZPS40 PHFO 212226
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2330 UTC THU JAN 21 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 21 2021.
24 HOUR FORECAST VALID 1800 UTC JAN 22 2021.
48 HOUR FORECAST VALID 1800 UTC JAN 23 2021.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 25S172W TO 21S177W MOVING SE 10 KT THENCE A STATIONARY
FRONT TO 18S171E. TROUGH FROM 17N160E TO 18S171E. WIND N TO NW 20 TO
25 KT S OF 23S WITHIN 120 NM E OF FRONT. ALSO WINDS E TO SE 20 TO 25 KT
WITHIN 270 NM S OF TROUGH AXIS. ASSOCIATED SEAS INCLUDED BELOW. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 300 NM E AND NE OF FRONTAL BOUNDARY AND
ALSO WITHIN 300 NM EITHER SIDE OF TROUGH AXIS.
.24 HOUR FORECAST FRONT 25S170W TO 21S178W TO 20S171E. TROUGH FROM
17S160E TO 20S172E. WINDS E TO SE 20 TO 25 KT OVER FORECAST WATERS
S OF TROUGH AXIS.
.48 HOUR FORECAST FRONT NEAR 25S170W. TROUGH FROM 17S160E TO 20S171E
TO 21S178E. DEVELOPING LOW ALONG TROUGH NEAR 21S178E 1005 MB. WINDS
E TO SE 20 TO 30 KT OVER FORECAST WATERS S OF TROUGH AXIS.

.TROUGH FROM 07S177E TO 11S177W TO 14S172W MOVING SSW 10 KT. ISOLATED
MODERATE TSTMS WITHIN 240 NM N OF TROUGH AXIS.
.24 HOUR FORECAST TROUGH FROM 12S176E TO 16S174W.
.48 HOUR FORECAST TROUGH FROM 15S176E TO 19S174W.

.TROUGH FROM 10S160W TO 12S150W TO 17S142W. TROUGH FORM WNW 10 KT N OF
12S AND WSW 10 KT S OF 12S. WIND N TO E 20 TO 30 KT AND SEAS 8 TO 9 FT
WITHIN 150 NM EITHER SIDE OF TROUGH AXIS BETWEEN 155W AND 148W. NUMEROUS
MODERATE TSTMS FROM 10S TO 17S BETWEEN 156W AND 144W. ISOLATED MODERATE
TSTMS ELSEWHERE FROM 06S TO 19S BETWEEN 162W AND 140W.
.24 HOUR FORECAST TROUGH FROM 07S162W TO 12S157W TO 16S149W. ASSOCIATED
WINDS DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST TROUGH FROM 07S169W TO 12S164W TO 16S159W.

.RIDGE FROM 25S145W TO 22S156W TO 18S167W.
.24 HOUR FORECAST RIDGE FROM 25S156W TO 16S167W.
.48 HOUR FORECAST RIDGE FROM 25S145W TO 21S162W.

.RIDGE FROM 09S172E TO 06S160E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.OTHERWISE SEAS 8 TO 12 FT WITHIN AN AREA BOUND BY 11S175E 20S175W
25S172W 25S160E 13S175E 11S175E.
.24 HOUR FORECAST SEAS 8 TO 11 FT WITHIN AN AREA BOUND BY 13S160E
19S167E 09S177E 25S178W 25S160E 13S160E.
.48 HOUR FORECAST SEAS 8 TO 10 FT WITHIN AN AREA BOUND BY 17S160E 22S176E
25S176E 25S160E 17S160E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.


$$

.FORECASTER BEDAL. HONOLULU HI.