540
FZPN40 PHFO 010854
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 01 2026.
24 HOUR FORECAST VALID 0600 UTC AUG 02 2026.
48 HOUR FORECAST VALID 0600 UTC AUG 03 2026.
.WARNINGS.
..GALE WARNING
.48 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1008 MB NEAR 26.0N
142.3W. WINDS 25 TO 35 KT WITHIN 50 NM N SEMICIRCLE OF LOW. WINDS
20 TO 25 KT REMAINDER OF AREA N OF 25N E OF 145W. 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
23N E OF 145W.
.SYNOPSIS AND FORECAST
.LOW NEAR 28N170W 1017 MB MOVING WNW 10 KT. TROUGH 25N174W TO LOW
TO 30N170W MOVING WNW 10 KT. WINDS 20 TO 25 KT AND SEAS 2.5 TO 3 M
N OF 27N BETWEEN 166W AND 173W. ISOLATED MODERATE TSTMS N OF 24N
BETWEEN 167W AND 176W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 26N177W TO 30N177W. WINDS
EASED BELOW 20 KT AND SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST TROUGH MOVED NW OF AREA.
.LOW NEAR 05N162W 1009 MB NEARLY STATIONARY. ISOLATED MODERATE
TSTMS FROM 04N TO 07N BETWEEN 156W AND 165W.
.24 HOUR FORECAST LOW 07N161W 1010 MB. TROUGH 08N155W TO LOW TO
02N165W.
.48 HOUR FORECAST LOW 06N164W 1011 MB. TROUGH 10N160W TO LOW TO
03N170W.
.LOW NEAR 07N144W 1010 MB NEARLY STATIONARY. ISOLATED MODERATE
TSTMS FROM 04N TO 08N E OF 145W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 16N140W 06N150W.
.48 HOUR FORECAST TROUGH 15N143W 08N148W.
.WINDS 20 TO 25 KT IN AREA BOUNDED BY 28N140W 24N140W 14N150W
16N158W 24N155W 28N140W.
.24 HOUR FORECAST 20 TO 25 KT IN AREA BOUNDED BY 29N140W 24N140W
17N160W 24N165W 29N140W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 20N TO 24N BETWEEN 157W
AND 174W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M IN AREA BOUNDED BY 27N140W 21N140W 15N156W 23N152W
27N140W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 30N140W
20N140W 15N140W 12N163W 25N162W 30N140W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 14N TO 25N BETWEEN 156W AND
167W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH FROM 13N140W TO LOW AT 07N144W TO LOW AT 05N162W TO
08N180W. EXCEPT WHERE NOTED ABOVE...ISOLATED MODERATE TSTMS FROM
08N TO 13N W OF 175W.
.FORECASTER WROE. HONOLULU HI.
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