880
FZPN40 PHFO 111510
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON AUG 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AUG 11 2025.
24 HOUR FORECAST VALID 1200 UTC AUG 12 2025.
48 HOUR FORECAST VALID 1200 UTC AUG 13 2025.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HENRIETTE NEAR 28.8N 156.5W 986 MB AT 1500 UTC AUG 11
MOVING NW OR 310 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 75 KT
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE
QUADRANTS...60 NM NE QUADRANT AND 30 NM SW QUADRANT. WINDS 20 TO
33 KT ELSEWHERE FROM 29N TO 26N BETWEEN 150W AND 155W. SEAS 4 M
OR GREATER WITHIN 140 NM OF NE QUADRANT...90 NM OF SE
QUADRANT...70 NM OF SW QUADRANT...AND 70 NM OF NW QUADRANT WITH
SEAS UP TO 6 M. SEAS 2.5 TO 4 M ELSEWHERE N OF 20 N BETWEEN 152W
AND 157W. ISOLATED MODERATE TSTMS WITHIN 120 NM OF CENTER.
.24 HOUR FORECAST HURRICANE HENRIETTE N OF AREA.
.48 HOUR FORECAST TROPICAL STORM HENRIETTE N OF AREA.

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

SEE LATEST BULLETIN FROM CPHC UNDER WMO HEADER WTPA23 PHFO FOR
ADDITIONAL DETAILS.

.SYNOPSIS AND FORECAST.

.FRONT 30N169W 26N175W 27N172E MOVING SE 10 KT E OF 173W AND
NEARLY STATIONARY ELSEWHERE. ISOLATED MODERATE TSTMS WITHIN 120
NM OF FRONT.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N171W 25N178W
25N171E.
.48 HOUR FORECAST TROUGH 30N177W 23N167E.

.48 HOUR FORECAST NEW TROUGH 30N144W 24N143W.

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

.SEAS 2.5 M OR LOWER REMAINDER OF FORECAST AREA.

.ITCZ 11N140W 10N145W 06N156W. ISOLATED MODERATE TSTMS WITHIN
180 NM OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 16N TO 09N BETWEEN 179E AND 172E.

$$

.FORECASTER THOMAS. HONOLULU HI.