706
FZPN40 PHFO 102058
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC THU SEP 10 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 10 2026.
24 HOUR FORECAST VALID 1800 UTC SEP 11 2026.
48 HOUR FORECAST VALID 1800 UTC SEP 12 2026.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM LOWELL NEAR 29.0N 168.9W 995 MB AT 2100 UTC SEP
10 MOVING W OR 270 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE QUADRANT
..90 NM SE QUADRANT...50 NM SW QUADRANT
AND 130 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 510 NM NE QUADRANT...240 NM
SE QUADRANT...270 NM SW QUADRANT...AND 390 NM NW QUADRANT WITH
SEAS TO 7 M. SEAS 2.5 TO 4 M ELSEWHERE N OF 25N BETWEEN 177W AND
162W.
.24 HOUR FORECAST TROPICAL STORM LOWELL NEAR 29.6N 171.7W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 90 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER N OF 27N
BETWEEN 175W AND 170W WITH SEAS TO 5 M. SEAS 2.5 TO 4 M N OF 26N W
OF 162W.
.48 HOUR FORECAST TROPICAL STORM LOWELL MOVED 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.
.SYNOPSIS AND FORECAST
.LOW 05N150W 1008 MB MOVING NE SLOWLY.
.24 HOUR FORECAST LOW 11N147W 1006 MB.
.48 HOUR FORECAST LOW 13N148W 1005 MB. TROUGH FROM 17N148W TO LOW
TO 11N150W.
.LOW 09N160W 1008 MB NEARLY STATIONARY.
.24 HOUR FORECAST LOW ABSORBED BY MONSOON TROUGH.
.TROUGH 25N160W TO 21N160W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 26N164W TO 21N161W.
.48 HOUR FORECAST TROUGH 27N167W TO 24N164W.
.TROUGH 25N140W TO 19N144W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 26N142W TO 20N146W.
.48 HOUR FORECAST TROUGH 24N147W TO 16N147W.
.TROUGH 30N146W TO 26N148W MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH 30N150W TO 25N150W.
.48 HOUR FORECAST TROUGH 30N152W TO 28N152W.
.48 HOUR FORECAST NEW FRONT 30N175W TO 26N180W.
.SEAS 2.5 TO 3 M N OF 28N BETWEEN 147W AND 155W.
.24 HOUR FORECAST SEAS SUBSIDED BELOW 2.5 M.
.WINDS 20 TO 25 KT N OF 25N BETWEEN 170W AND 165W.
.24 HOUR FORECAST WINDS 20 TO 25 KT WINDS DIMINISHED TO
20 KT OR LESS.
.WINDS 20 KT OR LOWER OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 M OR LESS OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH FROM 12N140W TO FIRST LOW DESCRIBED ABOVE TO
SECOND LOW TO 08N170W TO 06N180W.
.ISOLATED MODERATE TSTMS S OF 07N BETWEEN 168W AND 160W.
.FORECASTER SHIGESATO. HONOLULU HI.
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