802
FZPS40 PHFO 180948
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1130 UTC FRI OCT 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 18 2024.
24 HOUR FORECAST VALID 0600 UTC OCT 19 2024.
48 HOUR FORECAST VALID 0600 UTC OCT 20 2024.

.WARNINGS.

...GALE WARNING...
.COMPLEX LOW NEAR 17S177E 1006 MB MOVING S 15 KT. FRONT 25S152W
19S167W 19S173W 20S179W TO LOW. FRONT MOVING E 30 KT ALONG
25S...MOVING S SLOWLY W OF 175W. TROUGH 25S170E TO LOW NEARLY
STATIONARY. E WINDS 25 TO 35 KT S OF 20S BETWEEN 175E AND 171W. E
TO SE WINDS 20 TO 25 KT ELSEWHERE S OF LINE 25S171E 19S177E
19S165E 22S160E 25S160E. ISOLATED TO SCATTERED MODERATE TSTMS S OF
FRONT AND TROUGH.
.24 HOUR FORECAST COMPLEX LOW NEAR 24S178E 1000 MB. FRONT 25S142W
22S150W 20S160W 25S170W TO LOW. TROUGH 07S160E 15S180W 22S175W TO
LOW. WINDS 30 TO 40 KT S OF 22S BETWEEN 175E AND 167W. WINDS 20 TO
30 KT ELSEWHERE S OF 18S BETWEEN 170E AND 150W.
.48 HOUR FORECAST COMPLEX LOW NEAR 25S177W 1003 MB. FRONT 25S131W
21S140W 19S150W 21S160W 25S162W. TROUGH 07S160E 12S180W 25S162W.
WINDS 25 TO 35 KT S OF 22S BETWEEN 165W AND 160W. WINDS 20 TO 25
KT ELSEWHERE S OF 19S BETWEEN 175E AND 157W.

.SYNOPSIS AND FORECAST.

.TROUGH 08S167E 04N160E NEARLY STATIONARY. SCATTERED MODERATE
TSTMS WITHIN 180 NM OF TROUGH W OF 165E.
.24 HOUR FORECAST TROUGH MERGED WITH SYSTEM MENTIONED IN GALE
WARNING ABOVE.

.TROUGH 19S149W 18S150W 17S157W 14S166W 14S171W 15S174W 09S175E
MOVING S 10 KT W OF 160W AND NEARLY STATIONARY ELSEWHERE.
SCATTERED MODERATE TSTMS WITHIN 150 NM OF TROUGH W OF 160W.
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 330 NM EITHER SIDE OF
TROUGH.
.24 HOUR FORECAST TROUGH MERGED WITH SYSTEM MENTIONED IN GALE
WARNING ABOVE.

.E TO SE WINDS 20 TO 25 KT S OF 05S E OF 129W.
.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 06S TO 23S E OF
126W.
.48 HOUR FORECAST WINDS DECREASED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 12 TO 15 FT S OF LINE 25S174E 19S176E 20S170W 25S170W. SEAS
8 TO 12 FT ELSEWHERE S OF LINE 25S168E 17S174E 18S170W
25S156W...AND E OF LINE 02S120W 05S130W 20S135W 25S135W.
.24 HOUR FORECAST SEAS 18 TO 23 FT S OF LINE 25S176E 23S176E
22S178E 13S176W 25S174W. SEAS 12 TO 18 FT ELSEWHERE IN AREA
BOUNDED BY 25S171E 21S172E 19S170W 21S160W 25S165W 25S171E. SEAS 8
TO 12 FT ELSEWHERE S OF LINE 25S167E 18S171E 16S170E 16S160W
25S144W...AND E OF LINE 00S120W 05S140W 25S130W.
.48 HOUR FORECAST SEAS 12 TO 15 FT S OF 21S BETWEEN 172E AND 162W.
SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S165W 17S171E 19S178E
13S155W 25S120W. SEAS 8 TO 10 FT FROM 02S TO 22S E OF 131W.

.SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA

.SCATTERED MODERATE TSTMS FROM 03S TO 08S BETWEEN 177W AND 164W.

$$

.FORECASTER JELSEMA. HONOLULU HI.