228
FZPN40 PHFO 021048
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 02 2026.
24 HOUR FORECAST VALID 0600 UTC AUG 03 2026.
48 HOUR FORECAST VALID 0600 UTC AUG 04 2026.
.WARNINGS.
..GALE WARNING
.24 HOUR FORECAST POST-TROPICAL LOW OF GENEVIEVE 1009 MB NEAR
25.4N 141.2W. WINDS 25 TO 35 KT WITHIN 180 NM N SEMICIRCLE OF LOW.
WINDS 20 TO 25 KT ELSEWHERE N OF 24N E OF 144W. SEAS 4 TO 5 M
WITHIN 180 NM N SEMICIRCLE OF LOW. SEAS 2.5 TO 4 M ELSEWHERE
N OF 21N E OF 145W.
.48 HOUR FORECAST REMNANT LOW GENEVIEVE 1010 MB NEAR 26.7N
144.5W. WINDS 20 TO 30 KT N OF 26N E OF 147W. SEAS 2.5 TO 3.5 M N
OF 25N E OF 147W.
.SYNOPSIS AND FORECAST
.TROUGH 30N177W 25N180W MOVING NW 10 KT. SEAS 2.5 TO 3 M N OF 28N
W OF 173W. SCATTERED MODERATE TSTMS FROM 28N TO 22N BETWEEN 178W
AND 173W. ISOLATED MODERATE TSTMS N OF 28N W OF 174W.
.24 HOUR FORECAST TROUGH AND ASSOCIATED SEAS MOVED W OF AREA.
.TROUGH 15N141W 11N145W 06N149W MOVING W 10 KT. ISOLATED MODERATE
TSTMS FROM WITHIN 240 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 15N146W 06N151W.
.48 HOUR FORECAST TROUGH 14N150W 08N156W 04N157W.
LOW NEAR 06N162W 1010 MB
TROUGH 12N159W THROUGH LOW TO 04N168W.
LOW AND TROUGH MOVING W SLOWLY. SCATTERED MODERATE TSTMS FROM 12N
TO 04N BETWEEN 168W AND 156W.
.24 HOUR FORECAST LOW NEAR 07N168W 1009 MB. TROUGH FROM 13N164W
THROUGH LOW TO 03N170W.
.48 HOUR FORECAST LOW WEAKENED TO TROUGH. TROUGH 12N168W 04N175W.
.WINDS 20 TO 30 KT FROM 25N TO 15N BETWEEN 166W AND 151W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 24N TO 19N BETWEEN 178W
AND 153W.
.48 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 30N142W 25N162W 11N165W 18N147W
19N140W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 26N171W
22N174W 11N168W 14N156W 22N160W 24N154W 26N171W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M W OF LINE 28N180W 22N168W
11N165W 12N171W 19N180W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH 09N180W 08N175W. ISOLATED MODERATE TSTMS FROM 17N
TO 06N W OF 175W.
.SCATTERED MODERATE TSTMS S OF 04N BETWEEN 160W AND 150W.
ISOLATED MODERATE TSTMS FROM 24N TO 22N BETWEEN 145W AND 143W.
.FORECASTER TROTTER. HONOLULU HI.
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