646
FZPN40 PHFO 140310
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC MON SEP 14 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SEP 14 2026.
24 HOUR FORECAST VALID 0000 UTC SEP 15 2026.
48 HOUR FORECAST VALID 0000 UTC SEP 16 2026.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM NORBERT NEAR 19.2N 135.3W 1002 MB AT 0300 UTC
SEP 14 MOVING WNW OR 290 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS
40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE
QUADRANT...20 NM SE QUADRANT...30 NM SW QUADRANT...AND 90 NM NW
QUADRANT. SEAS 4 M WITHIN 30 NM S SEMICIRCLE...90 NM
NE QUADRANT AND 75 NM NW QUADRANT. SEAS 2.5 TO 4 M ELSEWHERE
FROM 23N TO 14N BETWEEN 130W AND 138W.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 20.0N 139.8W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM S SEMICIRCLE...40 NM NE QUADRANT AND 50 NM NW
QUADRANT. SEAS 2.5 TO 4 M FROM 24N TO 17N BETWEEN 135W AND 142W.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW NORBERT NEAR 20.6N
145.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 2.5
TO 3 M FROM 24N TO 18N E OF 145W.

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

.LOW NEAR 11N147W 1006 MB MOVING W 10 KT. TROUGH FROM 28N142W
TO 15N152W TO LOW MOVING W 10 KT. ISOLATED MODERATE TSTMS FROM
12N TO 03N BETWEEN 145W AND 151W.
.24 HOUR FORECAST LOW NEAR 11N148W 1007 MB. TROUGH FROM 30N148W
TO 15N156W TO LOW.
.48 HOUR FORECAST LOW NEAR 10N154W 1007 MB. TROUGH 15N147W TO LOW.

.LOW NEAR 13N143W 1006 MB MOVING W 10 KT. ISOLATED MODERATE TSTMS
WITHIN 120 NM OF LOW.
.24 HOUR FORECAST LOW NEAR 12N147W 1006 MB.
.48 HOUR FORECAST LOW MERGED WITH LOW DESCRIBED ABOVE.

.LOW NEAR 08N177W 1008 MB MOVING W 10 KT. SCATTERED MODERATE
TSTMS S OF 13N W OF 170W.
.24 HOUR FORECAST LOW MOVED W OF AREA.

.FRONT 30N170W 25N173W THENCE TROUGH 23N180W NEARLY STATIONARY.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N171W 23N175W
21N180W.
.48 HOUR FORECAST TROUGH 30N172W 22N180W.

.TROUGH 30N151W 25N152W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH DISSIPATED.

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

.MONSOON TROUGH 12N140W 12N143W 11N147W 06N149W 06N158W 10N162W
09N174W 07N180W. ISOLATED MODERATE TSTMS 360 NM S OF TROUGH.

$$

.FORECASTER FOSTER. HONOLULU HI.