949
FZPN40 PHFO 010235
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 01 2026.
24 HOUR FORECAST VALID 0000 UTC AUG 02 2026.
48 HOUR FORECAST VALID 0000 UTC AUG 03 2026.
.WARNINGS.
..GALE WARNING
48 HOUR FORECAST REMNANT LOW OF GENEVIEVE
1008 MB NEAR 25.8N
141.3W. WINDS 25 TO 35 KT WITHIN 40 NM N SEMICIRCLE OF LOW. WINDS
20 TO 25 KT REMAINDER OF AREA N OF 24N E OF 144W. SEAS 3.5 TO 5 M
FROM 25N TO 29N E OF 143W. SEAS 2.5 TO 3.5 M REMAINDER OF AREA N
OF 21N E OF 147W.
.SYNOPSIS AND FORECAST
.LOW NEAR 28N169W 1014 MB MOVING WNW 10 KT. TROUGH 26N169W TO LOW
TO 30N167W MOVING WNW 10 KT. WINDS 20 TO 25 KT AND SEAS 2.5 TO 3
M N OF 27N BETWEEN 165W AND 173W. SCATTERED MODERATE TSTMS N OF
25N BETWEEN 164W AND 168W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 27N177W TO 30N175W.
WINDS EASED BELOW 20 KT AND SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST TROUGH MOVED NW OF AREA. WINDS BELOW 20 KT AND
SEAS LESS THAN 2.5 M.
.LOW NEAR 07N179W 1009 MB MOVING SLOWLY WNW. SCATTERED MODERATE
TSTMS FROM 07N TO 09N W OF 179W.
.24 HOUR FORECAST LOW MOVED W OF THE AREA.
.LOW NEAR 06N157W 1008 MB MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 03N TO 05N BETWEEN 160W AND 164W.
.24 HOUR FORECAST LOW NEAR 07N161W MOVING W SLOWLY. TROUGH
03N165W TO LOW TO 09N156W.
.48 HOUR FORECAST LOW OPENED UP TO TROUGH FROM 01N173W TO 08N165W
TO 11N160W.
.WINDS 20 TO 25 KT WITHIN 150 NM OF A LINE FROM 20N158W TO 23N149W
TO 26N140W.
.24 HOUR FORECAST WINDS 20 TO 25 KT WITHIN 140 NM OF A LINE FROM
20N162W TO 25N150W TO 27N140W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 20N TO 25N BETWEEN 157W
AND 176W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 14N TO 27N E OF 157W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 13N TO 28W E OF 165W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M FROM 12N TO 26N BETWEEN 151W
AND 172W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ FROM 13N140W TO 10N144W. ISOLATED MODERATE TSTMS FROM 06N TO
08N E OF 142W.
.MONSOON TROUGH FROM 10N144W TO 04N165W TO 07N180. ISOLATED MODERATE
TSTMS FROM 07N TO 11N BETWEEN 170W AND 176W...AND WITHIN 50 NM OF
06N147W.
.SCATTERED MODERATE TSTMS FROM 20N TO 23N W OF 173W.
.FORECASTER CHAN. HONOLULU HI.
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