000
FZPS40 PHFO 201534
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC TUE APR 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC APR 20 2021.
24 HOUR FORECAST VALID 1200 UTC APR 21 2021.
48 HOUR FORECAST VALID 1200 UTC APR 22 2021.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S175E 20S172E MOVING E 10 KT. SCATTERED STRONG TSTMS WITHIN
60 NM OF 21S177E.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 25S180W 22S179E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.FRONT 25S134W 20S145W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 25S132W 20S142W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.48 HOUR FORECAST NEW TROUGH 25S141W 20S143W 18S147W.

.RIDGE 25S127W 22S137W MOVING SE 15 KT.

.RIDGE 21S171E 25S160E MOVING SE 10 KT.
.24 HOUR FORECAST NEW HIGH 24S169E 1016 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.E TO SE WINDS 20 TO 25 KT S OF LINE 25S155W 15S160W 25S180W.
.24 HOUR FORECAST E TO SE WINDS S OF LINE 25S142W 15S165W 25S172W
AND FROM 04S TO 14S E OF 135W.
.48 HOUR FORECAST SE WINDS S OF LINE 25S130W 17S160W 25S170W AND
FROM 04S TO 16S E OF 140W.

.SEAS 8 TO 9 FT E OF LINE 23S120W 08S127W 06S120W. SEAS 8 TO 9 FT S
OF LINE 25S152W 19S162W 25S172W.
.24 HOUR FORECAST SEAS 8 TO 10 FT E OF LINE 17S120W 20S133W 00S123W.
SEAS 8 TO 9 FT S OF LINES 25S140W 15S160W 25S173W AND 25S178E
23S166E 25S164E.
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF LINE 25S135W 18S160W 18S165W
25S163W. SEAS 8 TO 9 FT E OF LINE 15S120W 10S135W 00S120W.

.REST OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ISOLATED MODERATE TSTMS WITHIN 90 NM OF LINE 17S160W 20S166W AND
FROM 02S TO 08S BETWEEN 180W AND 170E.

$$
.HONOLULU FORECASTER.