781
FZPN40 PHFO 301507
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC WED JUL 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1200 UTC JUL 30 2025.
24 HOUR FORECAST VALID 1200 UTC JUL 31 2025.
48 HOUR FORECAST VALID 1200 UTC AUG 01 2025.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IONA NEAR 11.5N 160.2W 987 MB AT 1500 UTC JUL 30
MOVING W OR 280 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS 65 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N
SEMICIRCLE...60 NM SE QUADRANT AND 50 NM SW QUADRANT.
.12 HOUR FORECAST TROPICAL STORM IONA NEAR 11.8N 162.8W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT.
.24 HOUR FORECAST TROPICAL STORM IONA NEAR 12.2N 166.4W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...20 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM OF CENTER WITH SEAS TO 5 M.
.48 HOUR FORECAST TROPICAL STORM IONA NEAR 13.5N 173.2W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

...TROPICAL STORM WARNING...
.TROPICAL STORM KELI NEAR 13.8N 155.5W 1006 MB AT 1500 UTC JUL
30 MOVING W OR 280 DEG AT 18 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S
SEMICIRCLE...40 NM NE QUADRANT AND 30 NM NW QUADRANT.

.24 HOUR FORECAST TROPICAL DEPRESSION KELI NEAR 14.9N 161.5W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 4 M OR GREATER
WITHIN 90 NM OF CENTER WITH SEAS TO 5 M.

.36 HOUR FORECAST...DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.LOW NEAR 11N142W 1009 MB MOVING W 10 KT. WINDS 20 TO 25 KT FROM
17N TO 12N E OF 144W. SEAS 2.5 TO 3 M FROM 16N TO 12N E OF 143W.
.24 HOUR FORECAST LOW NEAR 11N148W 1009 MB. WINDS 20 TO 25 KT
FROM 17N TO 12N BETWEEN 150W AND 143W. SEAS 2.5 TO 4 M FROM 20N TO
11N BETWEEN 152W AND 143W.
.48 HOUR FORECAST LOW NEAR 12N153W 1010 MB. WINDS 20 TO 25 KT
FROM 19N TO 13N BETWEEN 159W AND 150W. AND SEAS 2.5 TO 4 M FROM
20N TO 10N BETWEEN 161W AND 143W.

.TROUGH 30N148W 27N153W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF
FORECAST AREA.

.ITCZ 12N140W TO LOW NEAR 11N142W TO 07N147W 11N152W TO T.S. KELI
TO HURCN IONA TO 09N164W 09N168W...AND 09N177W 07N171E 09N160E

.ISOLATED MODERATE TSTMS N OF 26N BETWEEN 179E AND 168W.


$$

.FORECASTER PIERCE. HONOLULU HI.