581
FZPN40 PHFO 301018
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SEP 30 2026.
24 HOUR FORECAST VALID 0600 UTC OCT 01 2026.
48 HOUR FORECAST VALID 0600 UTC OCT 02 2026.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM NOLO NEAR 22.4N 164.6W 987 MB AT 0900 UTC SEP 30
MOVING WNW OR 290 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...90 NM SE QUADRANT...80 NM SW QUADRANT...AND 110 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 150 NM E SEMICIRCLE AND
240 NM W SEMICIRCLE WITH SEAS TO 10 M. SEAS 2.5 TO 3.5 M ELSEWHERE
FROM 16N TO 27N BETWEEN 159W AND 180W. WINDS 20 TO 30 KT ELSEWHERE
FROM 20N TO 26N BETWEEN 158W AND 169W. ISOLATED MODERATE TSTMS
WITHIN 90 NM OF CENTER.
.24 HOUR FORECAST TROPICAL STORM NOLO NEAR 22.7N 165.0W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM N SEMICIRCLE AND 70 NM S SEMICIRCLE. SEAS 4 M OR
GREATER FROM 20N TO 25N BETWEEN 163W AND 169W WITH SEAS TO 8 M.
SEAS 2.5 TO 3.5 M ELSEWHERE FROM 17N TO 30N BETWEEN 161W AND 178W.
WINDS 20 TO 30 KT ELSEWHERE FROM 20N TO 27N BETWEEN 161W AND 171W.
.48 HOUR FORECAST TROPICAL STORM NOLO NEAR 22.8N 166.5W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...80 NM SE QUADRANT...70 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER FROM 21N TO
25N BETWEEN 163W AND 170W WITH SEAS TO 7 M. SEAS 2.5 TO 3.5 M
ELSEWHERE FROM 17N TO 29N BETWEEN 161W AND 176W. WINDS 20 TO 30 KT
ELSEWHERE FROM 20N TO 27N BETWEEN 161W AND 173W.
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 30N165W 28N169W 29N174W MOVING SE 15 KT.
.24 HOUR FORECAST 30N156W 28N160W THENCE TROUGH 28N162W.
.48 HOUR FORECAST FRONT 30N149W 29N150W 29N155W. TROUGH 30N165W
26N166W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH 11N140W 09N146W 12N162W 09N180W. SCATTERED MODERATE
TSTMS S OF TROUGH W OF 155W. ISOLATED MODERATE TSTMS S OF
TROUGH E OF 155W.
.FORECASTER TSAMOUS. HONOLULU HI.
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