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000
FZPS40 PHFO 210316
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC APR 21 2024.
24 HOUR FORECAST VALID 0000 UTC APR 22 2024.
48 HOUR FORECAST VALID 0000 UTC APR 23 2024.

.WARNINGS.

...GALE WARNING...
.LOW NEAR 21S160E 1007 MB MOVING E SLOWLY. TROUGH FROM LOW TO
22S161E 21S163E 22S167E MOVING E SLOWLY. E TO SE WINDS 25 TO 35
KT FROM 22S TO 24S W OF 162E. E TO SE WINDS 20 TO 25 KT ELSEWHERE
S OF LINE 21S160E 22S167E 25S167E. ISOLATED MODERATE TSTMS WITHIN
120 NM N AND 60 NM S OF TROUGH.
.24 HOUR FORECAST LOW NEAR 19S163E 1008 MB. SECOND LOW NEAR
23S175E 1006 MB. NEW THIRD LOW NEAR 21S169E 1007 MB. TROUGH FROM
17S160E TO LOW TO NEW THIRD LOW TO SECOND LOW TO 25S180W. WINDS 20
TO 30 KT S OF 20S W OF 178E.
.48 HOUR FORECAST LOW NEAR 17S162E 1010 MB. SECOND LOW NEAR
25S176W 1008 MB. THIRD LOW NEAR 21S170W 1009 MB. TROUGH FROM
16S160E TO LOW TO THIRD LOW TO 23S180W TO SECOND LOW. WINDS 20 TO
30 KT S OF 20S W OF 174W.

...GALE WARNING...
.TROUGH 16S120W 14S123W 13S127W NEARLY STATIONARY. E TO SE WINDS
20 TO 30 KT IN AREA BOUNDED BY 25S136W 19S140W 19S130W 21S120W
25S120W 25S136W.
.18 HOUR FORECAST TROUGH 21S120W 14S124W. SE WINDS 30 TO 35 KT S
OF 22S E OF 122W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE 25S147W
20S144W 16S130W 21S120W.
.24 HOUR FORECAST TROUGH 21S120W 13S125W. SE WINDS 30 TO 35 KT S
OF 22S E OF 124W. WINDS 20 TO 30 KT ELSEWHERE S OF LINE 25S146W
16S139W 16S133W 21S120W.
.48 HOUR FORECAST TROUGH 22S120W 20S126W 12S129W. WINDS 20 TO 30
KT S OF LINE 25S144W 22S140W 19S127W 22S120W.

.SYNOPSIS AND FORECAST.

.TROUGH 23S171E 22S168E 18S164E MOVING SW SLOWLY. ISOLATED TO
SCATTERED MODERATE TSTMS IN AREA BOUNDED BY 19S160E 11S160E
14S179E 25S180W 19S160E.
.24 HOUR FORECAST TROUGH MERGED WITH TROUGH MENTIONED IN FIRST
GALE WARNING ABOVE.

.TROUGH 12S180W 10S176E 10S172E 05S169E MOVING S SLOWLY.
SCATTERED MODERATE TSTMS WITHIN 300 NM OF TROUGH. ISOLATED
MODERATE TSTMS ELSEWHERE S OF LINE 06S160E 14S170E 15S167W 03S164W
02S180W 00S180W.
.24 HOUR FORECAST TROUGH 14S179W 12S173E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 25S152W 17S158W NEARLY STATIONARY. SCATTERED MODERATE TO
LOCALLY STRONG TSTMS WITHIN 180 NM E OF TROUGH S OF 19S. ISOLATED
TSTMS WITHIN 210 NM W OF TROUGH S OF 21S.
.24 HOUR FORECAST TROUGH 25S148W 16S154W.
.48 HOUR FORECAST TROUGH 25S149W 16S154W.

.TROUGH 16S150W 14S154W MOVING SW SLOWLY. SCATTERED MODERATE TSTMS
FROM 10S TO 19S BETWEEN 154W AND 140W.
.24 HOUR FORECAST TROUGH 18S150W 10S160W.
.48 HOUR FORECAST TROUGH MERGED WITH THROUGH MENTIONED DIRECTLY
ABOVE.

.SEAS 12 TO 13 FT S OF 22S E OF 122W. SEAS 8 TO 12 FT ELSEWHERE S
OF LINE 25S170W 21S165W 21S145W 15S135W 17S120W. SEAS 8 TO 11 FT
S OF 22S W OF 162E.
.24 HOUR FORECAST SEAS 12 TO 17 FT S OF 20S E OF 134W. SEAS 12 TO
14 FT S OF 22S W OF 163E. SEAS 8 TO 12 FT ELSEWHERE S OF LINE
21S160E 23S166E 20S175E 23S177E 25S175E...AND S OF LINE 25S164W
13S135W 18S120W.
.48 HOUR FORECAST SEAS 12 TO 16 FT S OF LINE 25S135W 18S130W
22S120W. SEAS 12 TO 15 FT S OF 23S W OF 166E. SEAS 8 TO 12 FT
ELSEWHERE S OF LINE 20S160E 22S165E 22S180W 25S178W...AND S OF
LINE 25S150W 10S135W 18S120W.

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

.ISOLATED MODERATE TSTMS S OF 24S E OF 123W.


$$

.FORECASTER JELSEMA. HONOLULU HI.