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000
FZPS40 PHFO 211018
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC SUN APR 21 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 21 2024.
24 HOUR FORECAST VALID 0600 UTC APR 22 2024.
48 HOUR FORECAST VALID 0600 UTC APR 23 2024.

.WARNINGS.

...GALE WARNING...
.LOW NEAR 21S161E 1006 MB MOVING ESE 10KT. TROUGH FROM 24S175E TO
20S168E TO LOW TO 19S160E. E TO SE WINDS 25 TO 35 KT FROM 20S TO
24S W OF 165E. E TO SE WINDS 20 TO 30 KT ELSEWHERE S OF LINE FROM
18S170E TO 22S167E 21S164E TO 19S160E. SCATTERED MODERATE TSTMS
WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST LOW NEAR 22S174E 1007 MB. TROUGH FROM 25S178W TO
LOW TO 15S160E. WINDS 20 TO 30 KT S OF A LINE FROM 21S180W TO
18S160E.
.48 HOUR FORECAST LOW NEAR 24S174W 1009 MB. SECOND LOW NEAR
20S163E 1007 MB. TROUGH FROM 25S170W TO LOW TO 19S177E TO SECOND
LOW TO 13S162E. E TO SE WINDS 25 TO 35 KT WITHIN 210 NM S
SEMICIRCLE OF SECOND LOW. WINDS 20 TO 30 KT ELSEWHERE S OF A LINE
FROM 25S171W TO 21S178W TO 20S164E TO 18S160E.

...GALE WARNING...
.TROUGH FROM 17S120W TO 14S123W NEARLY STATIONARY. E TO SE WINDS
20 TO 30 KT S OF A LINE FROM 19S120W TO 16S128W TO 18S140W.
.12 HOUR FORECAST TROUGH FROM 20S120W TO 15S121W. SE WINDS 30 TO
35 KT S OF 22S E OF 122W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE
FROM 21S120W TO 15S131W TO 20S143W.
.24 HOUR FORECAST TROUGH FROM 16S120W TO 14S121W. WINDS 20 TO 30 KT
S OF LINE FROM 22S120W TO 15S131W TO 16S140W TO 25S144W.
.48 HOUR FORECAST TROUGH FROM 22S124W TO 17S126W. WINDS 20 TO 30
KT S OF LINE FROM 21S120W TO 20S130W TO 22S136W.

.SYNOPSIS AND FORECAST.

.LOW 08S171E 1009 MB. TROUGH FROM 11S180E TO LOW TO 05S169E MOVING
SW SLOWLY. SCATTERED MODERATE TSTMS WITHIN 180 NM S OF TROUGH.
ISOLATED MODERATE TSTMS WITHIN 300 NM NE OF TROUGH.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 04S171E TO 11S170E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 25S150W TO 16S158W  MOVING E SLOWLY. NUMEROUS STRONG
TSTMS WITHIN 270 NM E OF TROUGH S OF 17S.
.24 HOUR FORECAST TROUGH FROM 25S148W TO 12S153W.
.48 HOUR FORECAST TROUGH FROM 19S151W TO 14S156W.

.SEAS 8 TO 10 FT S OF 18S E OF 138W.
.24 HOUR FORECAST SEAS 12 TO 15 FT S OF 21S E OF 126W. SEAS 8 TO
11 FT ELSEWHERE S OF LINE FROM 16S120W TO 14S131W TO 20S144W TO
25S147W. SEAS 8 TO 10 FT S OF A LINE FROM 21S172E TO 21S165E TO
17S160E.
.48 HOUR FORECAST SEAS 12 TO 15 FT S OF LINE FROM 24S120W TO
21S127W TO 23S130W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE FROM
20S120W TO 16S124W TO 16S134W TO 25S146W. SEAS 8 TO 12 FT S OF A
LINE FROM 25S180E TO 21S169E TO 21S164E TO 18S160E.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF AREA.

.SCATTERED MODERATE TSTMS FROM 15S TO 19S BETWEEN 170E AND
166E. ISOLATED MODERATE TSTMS S OF 24S E OF 123W...AND FROM 17S TO
13S BETWEEN 143W AND 149W...AND N OF 07S BETWEEN 173W AND 179W.



$$

.FORECASTER TSAMOUS. HONOLULU HI.