370
FZPN40 PHFO 021535
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SUN AUG 02 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 02 2026.
24 HOUR FORECAST VALID 1200 UTC AUG 03 2026.
48 HOUR FORECAST VALID 1200 UTC AUG 04 2026.
.WARNINGS.
..GALE WARNING
.12 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1007 MB NEAR
25.2N 140.1W. WINDS 25 TO 35 KT WITHIN 180 NM N SEMICIRCLE OF LOW.
WINDS 20 TO 25 KT ELSEWHERE N OF 24N E OF 143W. SEAS 4 TO
5.5 M FROM 27N TO 25N E OF 142W. SEAS 2.5 TO 4 M ELSEWHERE N OF
22N E OF 144W.
.24 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1009 MB NEAR
26.0N 142.2W. WINDS 20 TO 30 KT N OF 25N E OF 145W. SEAS 2.5 TO 4
M N OF 23N E OF 146W.
.48 HOUR FORECAST REMNANT LOW GENEVIEVE 1010 MB NEAR 27.3N
144.8W. WINDS 20 TO 25 KT N OF 26N BETWEEN 147W AND 141W. SEAS 2.5
TO 3 M N OF 26N BETWEEN 148W AND 141W.
.SYNOPSIS AND FORECAST
.TROUGH 30N179W 28N180W MOVING NW 10 KT. SEAS 2.5 TO 3 M N OF 28N
W OF 175W. SCATTERED MODERATE TSTMS FROM 29N TO 22N W OF 173W.
.24 HOUR FORECAST TROUGH AND ASSOCIATED SEAS MOVED W OF AREA.
.TROUGH 15N143W 09N146W 02N153W MOVING W 10 KT. ISOLATED MODERATE
TSTMS FROM WITHIN 180 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 13N150W 04N154W.
.48 HOUR FORECAST TROUGH 09N158W 03N159W.
.LOW NEAR 06N165W 1010 MB AND TROUGH FROM 12N161W THROUGH LOW TO
03N170W. LOW AND TROUGH MOVING W SLOWLY. ISOLATED MODERATE TSTMS
FROM 13N TO 06N BETWEEN 170W AND 156W.
.24 HOUR FORECAST LOW NEAR 07N168W 1009 MB. TROUGH FROM 14N166W
THROUGH LOW TO 04N171W.
.48 HOUR FORECAST LOW WEAKENED TO TROUGH FROM 12N170W TO 05N175W.
.WINDS 20 TO 25 KT FROM 25N TO 15N BETWEEN 170W AND 153W.
.24 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M E OF LINE 30N141W 27N160W 22N169W 11N167W
15N150W 21N148W 19N140W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 25N TO 11N BETWEEN 176W
AND 160W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M W OF LINE 27N180W 15N165W
11N172W 18N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 07N140W 08N142W.
.MONSOON TROUGH 09N180W 08N176W. ISOLATED MODERATE TSTMS FROM 12N
TO 05N W OF 175W.
.SCATTERED MODERATE TSTMS S OF 04N BETWEEN 160W AND 151W.
ISOLATED MODERATE TSTMS FROM 24N TO 22N BETWEEN 145W AND 143W...
FROM 21N TO 17N W OF 176W...AND FROM 22N TO 20N BETWEEN 173W AND
170W.
.FORECASTER TROTTER. HONOLULU HI.
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