High Seas Forecast
Issued by NWS

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393
FZPS40 PHFO 041519
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC FRI JUL 04 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JUL 04 2025.
24 HOUR FORECAST VALID 1200 UTC JUL 05 2025.
48 HOUR FORECAST VALID 1200 UTC JUL 06 2025.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 16S156W TO 25S143W NEARLY STATIONARY. LOW DEVELOPING
ALONG FRONT NEAR 23S149W 1003 MB. WINDS 30 TO 35 KT WITHIN 120 NM
W SEMICIRCLE OF LOW CENTER. WINDS 20 TO 30 KT S OF A LINE FROM
FRONT TO 10S179W. SEAS 2.5 TO 4.5 M S OF LINE FROM 25S145W TO
17S157W TO 15S173W. SCATTERED MODERATE TSTMS E OF FRONT WITHIN 210
NM OF A LINE FROM 18S149W TO 22S145W TO 25S145W.
.24 HOUR FORECAST LOW NEAR 23S149W 1005 MB. FRONT FROM 21S150W TO
LOW TO 25S146W NEARLY STATIONARY. WINDS 30 TO 35 KT WITHIN 90 NM
OF LOW CENTER...AND S OF 20S BETWEEN 150W AND 155W. WINDS 20 TO 30
KT ELSEWHERE S OF LINE FROM 25S148W TO 14S160W TO 13S170W. SEAS 6
TO 8 M S OF 22S BETWEEN FRONT AND 154W. SEAS 4 TO 6 M ELSEWHERE S
OF 19S BETWEEN FRONT AND 161W...AND 2.5 TO 4 M ELSEWHERE S OF A
LINE FROM FRONT TO 11S175W.
.48 HOUR FORECAST LOW NEAR 25S150W 1007 MB. TROUGH FROM LOW TO
21S153W. WINDS 20 TO 25 KT S OF 23S BETWEEN 152W AND 156W. SEAS
2.5 TO 5 M S OF A LINE FROM FRONT TO 13S162W.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 25S172E TO 18S162E MOVING E SLOWLY.
.24 HOUR FORECAST TROUGH FROM 25S176E TO 21S173E.
.48 HOUR FORECAST TROUGH FROM 25S173W TO 20S178W.

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

.SEAS 2.5 TO 4 M S OF 06S E OF 133W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF 07S E OF 133W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF 04S E OF 130W...AND S OF
08S W OF 172E.

.OTHERWISE...SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.SCATTERED TO ISOLATED MODERATE TSTMS WITHIN 120 NM OF A LINE FROM
08S174W TO 05S177E TO 04S160E...AND FROM 11S TO 07S W OF 168E.


$$

.FORECASTER BLOOD. HONOLULU HI.