449
FZPS40 PHFO 171523
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC WED JUL 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
JULY 29 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE OFFSHORE AND HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP


SECURITE

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 1200 UTC JUL 17 2024.
24 HOUR FORECAST VALID 1200 UTC JUL 18 2024.
48 HOUR FORECAST VALID 1200 UTC JUL 19 2024.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST NEW TROUGH 25S169E 13S160E MOVING E 15 KT.
.36 HOUR FORECAST TROUGH STRENGTHENS TO FRONT 25S178E 14S169E
THENCE TROUGH 05S160E. WINDS 20 TO 35 KT S OF LINE 11S160E 18S170E
19S175E 25S177W.
.48 HOUR FORECAST FRONT 25S177E 15S171E THENCE TROUGH 06S160E.
WINDS 20 TO 35 KT S OF LINE 25S163E 23S163E 18S173E 21S177W
25S174W.

.FRONT 25S168W 24S174W 19S176E THENCE TROUGH 13S160E. FRONT MOVING
E 35 KT NEAR 25S BECOMING NEARLY STATIONARY N OF 20S. TROUGH
NEARLY STATIONARY.
.24 HOUR FORECAST FRONT 25S151W 24S160W. TROUGH DETACHED AND
MERGED WITH TROUGH AS DESCRIBED ABOVE. WINDS 20 TO 30 KT S OF LINE
25S161W 22S159W 23S145W 25S142W.
.48 HOUR FORECAST FRONT 25S136W 16S145W THENCE TROUGH 10S149W.
WINDS 20 TO 35 KT S OF LINE 25S147W 20S151W 19S148W 18S140W
25S125W.

.SYNOPSIS AND FORECAST.

.FRONT 25S134W 20S140W 16S155W MOVING E SLOWLY. WINDS 20 TO 25 KT
S OF LINE 25S138W 22S135W 25S127W. SCATTERED MODERATE TSTMS
WITHIN 60 NM OF FRONT S OF 23S.
.24 HOUR FORECAST FRONT 25S132W 21S140W 17S150W. WINDS EASED TO
20 KT OR LESS.
.48 HOUR FORECAST FRONT MERGED WITH FRONT AS DESCRIBED ABOVE.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 12 FT S OF LINE 25S167W 20S159W 20S141W 25S131W. SEAS
8 TO 10 FT S OF 04S E OF 131W. SEAS 8 TO 10 FT E OF LINE 04S120W
05S132W 10S134W 25S123W. SEAS 8 TO 9 FT N OF LINE 00S178E 10S179W
03S165W 07S154W 06S150W 02S148W.

.24 HOUR FORECAST SEAS 8 TO 10 FT S OF LINE 25S164W 23S160W
23S146W 20S142W 21S130W 22S120W. SEAS 8 TO 9 FT E OF LINE 05S120W
06S139W 17S120W...AND N OF 10S BETWEEN 171W AND 155W.

.48 HOUR FORECAST SEAS 12 TO 15 FT S OF 22S BETWEEN 147W AND
134W. SEAS 8 TO 12 FT ELSEWHERE S AND E OF LINE 25S159W 19S150W
20S133W 12S133W 07S120W. SEAS 8 TO 11 FT S OF LINE 19S160E 23S167E
19S173E 25S179W. SEAS 8 TO 9 FT FROM 11S TO 04S BETWEEN 178W AND
167W...AND FROM 17S TO 12S W OF 165E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.SCATTERED MODERATE TSTMS N OF 10S W OF 177E.

$$

.FORECASTER PIERCE. HONOLULU HI.