478
FZPN40 PHFO 302235
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC WED SEP 30 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 180W

SYNOPSIS VALID 1800 UTC SEP 30 2026.
24 HOUR FORECAST VALID 1800 UTC OCT 01 2026.
48 HOUR FORECAST VALID 1800 UTC OCT 02 2026.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM NOLO NEAR 21.6N 164.7W 996 MB AT 2100 UTC SEP 30
MOVING S OR 170 DEG AT 3 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS
50 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE QUADRANT...50 NM
SE QUADRANT...40 NM SW QUADRANT...AND 70 NM NW QUADRANT. WINDS 20
TO 34 KT ELSEWHERE FROM 26N TO 18N BETWEEN 170W AND 160W. SEAS 4
M OR GREATER WITHIN 150 NM NE QUADRANT...120 NM SE QUADRANT...210
NM SW QUADRANT...AND 240 NM NW QUADRANT WITH SEAS TO 6 M. SEAS 2.5
TO 4 M ELSEWHERE FROM 27N TO 17N W OF 158W. ISOLATED MODERATE
TSTMS FROM 27N TO 23N BETWEEN 167W AND 160W.
.24 HOUR FORECAST TROPICAL STORM NOLO NEAR 21.9N 165.6W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM NE QUADRANT...60 NM SE QUADRANT...50 NM SW
QUADRANT...AND 70 NM NW QUADRANT. WINDS 20 TO 34 KT ELSEWHERE FROM
26N TO 18N BETWEEN 172W AND 161W. SEAS 4 M OR GREATER FROM 25N TO
19N BETWEEN 168W AND 163W WITH SEAS TO 5.5 M. SEAS 2.5 TO 4 M
ELSEWHERE FROM 27N TO 16N BETWEEN 175W AND 159W.
.48 HOUR FORECAST TROPICAL STORM NOLO NEAR 22.6N 167.1W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM NW AND SE QUADRANTS...100 NM NE QUADRANT AND 50 NM SW
QUADRANT. WINDS 20 TO 34 KT ELSEWHERE FROM 26N TO 18N BETWEEN
174W AND 163W. SEAS 4 M OR GREATER FROM 26N TO 22N BETWEEN 169W
AND 164W WITH SEAS TO 6.5 M. SEAS 2.5 TO 4 M ELSEWHERE N OF 18N
BETWEEN 176W AND 162W.

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.

.FRONT 30N161W 28N162W 26N168W 26N174W 30N178W MOVING ESE 15 KT E
OF 163W AND NEARLY STATIONARY W OF 163W. SEAS 2.5 TO 3 M N OF 27N
BETWEEN 176W AND 164W.
.24 HOUR FORECAST FRONT 30N153W 28N158W THENCE TROUGH 28N163W.
SEAS 2.5 TO 3 M N OF 27N BETWEEN 172W AND 159W.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N163W 28N166W. SEAS
LOWERED TO 2.5 M OR LOWER.

.48 HOUR FORECAST NEW TROUGH 18N146W 14N144W.

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

.MONSOON TROUGH 10N140W 07N150W 12N158W 12N166W 10N176W. ISOLATED
MODERATE TSTMS WITHIN 180 NM OF MONSOON TROUGH W OF 156W.

.SCATTERED MODERATE TO LOCALLY STRONG TSTMS S OF 08N W OF 161W.
ISOLATED MODERATE TSTMS FROM 05N TO 01N BETWEEN 158W AND 146W.

$$

.FORECASTER TROTTER. HONOLULU HI.