311
FZPS40 PHFO 200303
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SAT JUL 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JUL 20 2024.
24 HOUR FORECAST VALID 0000 UTC JUL 21 2024.
48 HOUR FORECAST VALID 0000 UTC JUL 22 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT 25S176W 20S180W 16S176E THENCE TROUGH 08S165E 05S160E
MOVING SE 15 KT. WINDS 20 TO 25 KT S OF 22S BETWEEN 171W AND
174E. ISOLATED MODERATE TSTMS WITHIN 90 NM OF FRONT.
.24 HOUR FORECAST WEAK FRONT 25S1760W 22S174W THENCE TROUGH TO
18S178E 10S160E. WINDS DECREASED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT DISSIPATED. TROUGH 25S177W 13S167E.

.FRONT 25S133W 20S138W 12S148W THENCE TROUGH 03S160W MOVING E 15
KT. WINDS 20 TO 25 KT S OF 20S BETWEEN 125W AND FRONT. ISOLATED
MODERATE TSTMS WITHIN 240 NM E OF FRONT S OF 20S.
.24 HOUR FORECAST FRONT 25S127W 17S135W THENCE TROUGH 11S142W.
WINDS 20 TO 30 KT E OF FRONT S OF 20S.
.48 HOUR FORECAST FRONT 20S120W 16S132W 12S137W. ASSOCIATED WINDS
MOVED S OF AREA.

.TROUGH 02S178E 06S179W MOVING W 15 KT AND DISSIPATING. ISOLATED
MODERATE TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST WINDS 20 TO 25 KT BETWEEN LINES 25S132W 14S135W
03S180W...AND 25S143W 08S175E.
.48 HOUR FORECAST WINDS 20 TO 30 KT FROM BETWEEN LINES 20S165W
11S165E...AND 20S125W 02S180W 10S173E.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 14 FT S OF 22S BETWEEN 177E AND 171E. SEAS 8 TO 12 FT
ELSEWHERE S OF LINE 25S176W 18S172E 25S164E...AND S OF A LINE
06S120W 18S140W 18S152W 25S160W.
.24 HOUR FORECAST SEAS 12 TO 13 FT S 23S BETWEEN 131W AND 140W.
SEAS 8 TO 12 FT ELSEWHERE S OF LINE 05S120W 18S134W 15S152W
21S162W. SEAS 8 TO 11 FT S OF 20S BETWEEN 173W AND 173E.
.48 HOUR FORECAST SEAS 8 TO 11 FT S OF A LINE 04S120W 13S130W
10S160W 14S170W. SEAS 8 TO 9 FT FROM 12S TO 06S ELSEWHERE BETWEEN
172W AND 176E...AND S OF 21S BETWEEN 164W AND 176W...AND S OF 23S
W OF 170E.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ISOLATED MODERATE TSTMS FROM 10S TO 02S BETWEEN 175W AND 170E.

$$

.FORECASTER ALMANZA. HONOLULU HI.