442
FZPN40 PHFO 011446
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SAT AUG 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC AUG 01 2026.
24 HOUR FORECAST VALID 1200 UTC AUG 02 2026.
48 HOUR FORECAST VALID 1200 UTC AUG 03 2026.
.WARNINGS.
..GALE WARNING
.48 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1008 MB NEAR 26.4N
143.0W. WINDS 25 TO 35 KT WITHIN 30 NM NE QUADRANT OF LOW. WINDS 20
TO 25 KT REMAINDER OF AREA N OF 25N E OF 146W. SEAS 3.5 TO 4.5 M
FROM 25N TO 28N E OF 143W. SEAS 2.5 TO 3.5 M REMAINDER OF AREA N OF
24N E OF 147W.
.SYNOPSIS AND FORECAST
.TROUGH 30N171W 26N174W MOVING WNW 10 KT. WINDS 20 TO 25 KT AND
SEAS 2.5 TO 3 M N OF 28N BETWEEN 167W AND 178W. ISOLATED STRONG
TSTMS N OF 27N BETWEEN 169W AND 172W. ISOLATED MODERATE TSTMS FROM
26N TO 28N BETWEEN 175W AND 178W.
.24 HOUR FORECAST TROUGH 30N177W 26N180W. WINDS EASED BELOW 20 KT
AND SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST TROUGH MOVED NW OF AREA.
.LOW NEAR 06N161W 1009 MB NEARLY STATIONARY. TROUGH 13N140W 06N150W
TO LOW TO 05N168W. ISOLATED MODERATE TSTMS FROM 11N TO 15N E OF
144W...FROM 03N TO 06N E OF 147W...AND FROM 04N TO 11N BETWEEN 155W
AND 166W.
.24 HOUR FORECAST LOW 07N165W 1010 MB. TROUGH 15N143W 07N150W TO
LOW.
.48 HOUR FORECAST LOW 07N168W 1010 MB. TROUGH 14N147W 06N155W TO
LOW.
.WINDS 20 TO 25 KT IN AREA BOUNDED BY 29N140W 24N140W 14N160W
25N160W 29N140W.
.24 HOUR FORECAST WINDS 20 TO 30 KT N OF 24N E OF 142W. WINDS 20 TO
25 KT FROM 15N TO 25N BETWEEN 155W AND 170W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 20N TO 26N W OF 165W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M IN AREA BOUNDED BY 29N140W 22N140W 12N161W 25N160W
29N140W.
.24 HOUR FORECAST SEAS 2.5 TO 3.5 M N OF 21N E OF 146W. SEAS 2.5 TO
3 M FROM 14N TO 27N BETWEEN 146W AND 166W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 13N TO 24N BETWEEN 163W AND
173W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
ISOLATED MODERATE TSTMS S OF 04N BETWEEN 169W AND 173W
AND FROM
07N TO 13N W OF 173W.
.FORECASTER WROE. HONOLULU HI.
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